{"id":9452,"date":"2026-08-14T10:42:22","date_gmt":"2026-08-14T03:42:22","guid":{"rendered":"https:\/\/giaanh.vn\/?post_type=kien-thuc&#038;p=9452"},"modified":"2026-10-15T08:53:46","modified_gmt":"2026-10-15T01:53:46","slug":"machining-fabrication-and-installation-of-wear-resistant-materials","status":"publish","type":"kien-thuc","link":"https:\/\/giaanh.vn\/en\/knowledge\/machining-fabrication-and-installation-of-wear-resistant-materials\/","title":{"rendered":"Machining, Fabrication and Installation of Wear-Resistant Materials"},"content":{"rendered":"<p>Even a correctly selected material can fail prematurely if it is cut, formed, joined or stored incorrectly before being put into operation.<\/p>\n<p>Cracks caused by thermal cutting, lining detachment at corners, permanent deformation caused by improper plate support, or cracking at the weld toe can all originate in the workshop but only become apparent after a period of operation.<\/p>\n<p>For this reason, machining and installation are not simply downstream steps following material selection. They determine whether the material retains the properties for which it was originally selected.<\/p>\n<p>This knowledge series follows the entire process from cutting, forming, joining and storage through to installation and restoration, helping identify the points that need to be controlled at each stage.<\/p>\n<h2><!-- notionvc: 1bd23f5d-7072-420a-8dcd-b679d4391213 --><\/h2>\n<h2><span style=\"color: #970d34;\"><strong>1. How machining and installation affect material service life<\/strong><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9505 aligncenter\" src=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/3AIyHvAfnEUkORtmcBnYrwkSjCaDJP2NFXfDn5630gy75o9dnT4voCzjwZJvvXlT4NtiA90gbbuxtzgpN2idMvSvFdXTCungFWtDcg1cangbkPz59Vp1rg-Xwjbylu7Wr6fjW7J5bNF5MHLVaGDYFR8EE8wvi8KhtqYNcd7b0f8M7KhmEA-0z1YKnfOxJTC9.webp\" alt=\"\" width=\"801\" height=\"641\" srcset=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/3AIyHvAfnEUkORtmcBnYrwkSjCaDJP2NFXfDn5630gy75o9dnT4voCzjwZJvvXlT4NtiA90gbbuxtzgpN2idMvSvFdXTCungFWtDcg1cangbkPz59Vp1rg-Xwjbylu7Wr6fjW7J5bNF5MHLVaGDYFR8EE8wvi8KhtqYNcd7b0f8M7KhmEA-0z1YKnfOxJTC9.webp 801w, https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/3AIyHvAfnEUkORtmcBnYrwkSjCaDJP2NFXfDn5630gy75o9dnT4voCzjwZJvvXlT4NtiA90gbbuxtzgpN2idMvSvFdXTCungFWtDcg1cangbkPz59Vp1rg-Xwjbylu7Wr6fjW7J5bNF5MHLVaGDYFR8EE8wvi8KhtqYNcd7b0f8M7KhmEA-0z1YKnfOxJTC9-450x360.webp 450w, https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/3AIyHvAfnEUkORtmcBnYrwkSjCaDJP2NFXfDn5630gy75o9dnT4voCzjwZJvvXlT4NtiA90gbbuxtzgpN2idMvSvFdXTCungFWtDcg1cangbkPz59Vp1rg-Xwjbylu7Wr6fjW7J5bNF5MHLVaGDYFR8EE8wvi8KhtqYNcd7b0f8M7KhmEA-0z1YKnfOxJTC9-768x615.webp 768w\" sizes=\"auto, (max-width: 801px) 100vw, 801px\" \/><\/p>\n<p>A ceramic lining tile detached after one operating cycle. The ceramic itself had not broken, the adhesive had not expired, and the correct material had been selected.<\/p>\n<p>When the tile was removed, however, there was no adhesive at its four corners. The installer had applied sufficient adhesive in the center but left small unbonded areas at each corner, each only about the size of a fingertip. That was still enough for the lining to detach after several months.<\/p>\n<p>The lining detached from the corners rather than from the center because the adhesive at the corners was subjected to peel stress instead of shear stress.<\/p>\n<p>This case illustrates an important point:<\/p>\n<p><strong>Selecting the correct material does not automatically mean that the location will achieve the expected service life.<\/strong><\/p>\n<p>After material selection, every subsequent operation continues to affect the final result.<\/p>\n<p>A common feature of these problems is that many deviations are not visible immediately during machining or installation. They may only become apparent after a period of operation.<\/p>\n<p>A crack caused by thermal cutting without proper thermal control may appear later. A ceramic lining with insufficient adhesive at the corners may detach after one cycle. A plate subjected to three-point bending during storage may carry permanent deformation into service.<\/p>\n<p>Once failure occurs, the original workshop-related cause may be difficult to trace.<\/p>\n<p>This is why machining, fabrication, storage and installation should be considered as a connected sequence rather than as separate operations.<\/p>\n<p><!-- notionvc: 0d2258a4-2c33-4724-883c-4a3e1a330b48 --><\/p>\n<p><!-- notionvc: 73de86e3-e0c4-402f-a41a-fdc1330caed4 --><\/p>\n<p><!-- notionvc: 5133c15e-b736-4e2d-b2e0-77a7670337ef --><\/p>\n<figure id=\"attachment_9084\" aria-describedby=\"caption-attachment-9084\" style=\"width: 421px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9084 size-full\" src=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/Cac-kieu-cat-thep.webp\" alt=\"\" width=\"421\" height=\"295\"><figcaption id=\"caption-attachment-9084\" class=\"wp-caption-text\">Four common cutting methods include oxy-fuel cutting, plasma cutting, laser cutting, and abrasive waterjet cutting (AWJ) (<span class=\"notion-enable-hover\" data-token-index=\"0\">Image source: SSAB)<\/span><!-- notionvc: 534fc32d-b26d-472a-8a1c-3c7e5e65c5de --><\/figcaption><\/figure>\n<h2><span style=\"color: #970d34;\"><strong>2. Four groups of work that directly affect the material before operation<\/strong><\/span><\/h2>\n<p>There are four main groups of work that need to be controlled:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Work group<\/strong><\/th>\n<th><strong>Points to control<\/strong><\/th>\n<th><strong>Signs requiring attention<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Cutting<\/strong><\/td>\n<td>Cutting method, thermal requirements and edge condition<\/td>\n<td>Rough edges, grooves, microcracks at the edge root<\/td>\n<\/tr>\n<tr>\n<td><strong>Forming<\/strong><\/td>\n<td>Bending radius, rolling direction and condition after forming<\/td>\n<td>Small cracks in the bent area<\/td>\n<\/tr>\n<tr>\n<td><strong>Joining<\/strong><\/td>\n<td>Welding procedure or lining fixing method<\/td>\n<td>Cracks at the weld toe, detachment or loss of bonding<\/td>\n<\/tr>\n<tr>\n<td><strong>Storage<\/strong><\/td>\n<td>Supporting, lifting, surface condition and material condition before the next stage<\/td>\n<td>Plate deflection, permanent deformation or damage occurring during storage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Among these, storage is the activity most easily separated from the technical process.<\/p>\n<p>However, material can be affected even before machining begins. If a crack appears only later, the original cause related to supporting, lifting or storage may be difficult to trace if records are no longer available.<\/p>\n<p>Therefore, instead of asking only:<\/p>\n<p><strong>\u201cWhat material is being used?\u201d<\/strong><\/p>\n<p>also ask:<\/p>\n<p><strong>\u201cHow was the material cut, formed, joined and stored before being installed on the equipment?\u201d<\/strong><\/p>\n<p><!-- notionvc: 0e1f18d2-a5eb-40ca-b088-26411975405e --><\/p>\n<p><!-- notionvc: ea164744-43a5-4388-bc35-5ed99ffc1e27 --><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9076 aligncenter\" src=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/gia-cong.webp\" alt=\"\" width=\"547\" height=\"231\" srcset=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/gia-cong.webp 547w, https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/gia-cong-450x190.webp 450w\" sizes=\"auto, (max-width: 547px) 100vw, 547px\" \/><\/p>\n<h2><span style=\"color: #970d34;\">3. Overview of the 9 parts in this knowledge series<\/span><\/h2>\n<p>After identifying the four main groups of work, cutting, forming, joining and storage, you can explore each stage in greater depth through the nine articles in the <strong>Machining, Fabrication and Installation of Wear-Resistant Materials<\/strong> knowledge series.<\/p>\n<p>The first eight parts focus on individual technical work groups. Part 9 concludes the series by summarizing the appropriate approaches for different actual situations, helping identify where to begin, which topics to prioritize and when the process should be reviewed again.<!-- notionvc: 6f27fd90-aedc-41ef-87ab-648b7b98d078 --><\/p>\n<p><!-- notionvc: 9824ebe8-00f8-4e71-910a-53dbcf003e24 --><\/p>\n<p><!-- notionvc: bcec0267-aed4-4dd6-914d-bf59a2f32dac --><\/p>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/cutting-and-forming\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 1: Cutting and forming<\/span><\/a><\/h3>\n<p>The way a material is cut determines the edge condition left for subsequent operations.<\/p>\n<p>This article covers:<\/p>\n<ul>\n<li>cutting methods<\/li>\n<li>edge condition after cutting<\/li>\n<li>burrs<\/li>\n<li>bending radius<\/li>\n<li>rolling direction<\/li>\n<li>mechanical shearing and punching<\/li>\n<li>sequence between cutting and forming<\/li>\n<\/ul>\n<p>Specific requirements must still be determined according to the exact material, thickness and applicable technical documentation.<!-- notionvc: 8874a364-0797-47ad-aeb4-1bb85e12ece9 --><\/p>\n<p><!-- notionvc: c2ae0c28-8516-4a2f-b201-d007e57f3bcc --><\/p>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/welding-high-hardness-steel\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 2: Welding high-hardness steel<\/span><\/a><\/h3>\n<p>A visually good weld is not enough to conclude that the entire joint meets the requirements.<\/p>\n<p>This article focuses on:<\/p>\n<ul>\n<li>heat-affected zone (HAZ)<\/li>\n<li>preheating<\/li>\n<li>interpass temperature<\/li>\n<li>welding consumables<\/li>\n<li>welding procedure conditions<\/li>\n<li>evidence that should be retained for root-cause assessment if cracking occurs<\/li>\n<\/ul>\n<h3><!-- notionvc: 0e1a482b-cc19-4601-8cfc-406a3ebc6087 --><\/h3>\n<figure id=\"attachment_9080\" aria-describedby=\"caption-attachment-9080\" style=\"width: 550px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9080 size-full\" src=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/han.webp\" alt=\"\" width=\"550\" height=\"377\" srcset=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/han.webp 550w, https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/han-450x308.webp 450w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><figcaption id=\"caption-attachment-9080\" class=\"wp-caption-text\"><strong>Technician performing steel welding (<\/strong><em>Image source: SSAB)<\/em><br \/><!-- notionvc: 32131936-90fa-4c30-bef4-952cb3c84ae8 --><\/figcaption><\/figure>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/fixing-non-metallic-linings-field-installation-techniques\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 3: Fixing non-metallic linings<\/span><\/a><\/h3>\n<p>Selecting the correct lining material is not enough if the fixing method is unsuitable.<\/p>\n<p>The main methods include:<\/p>\n<ul>\n<li>monolithic casting, trowelling or spraying<\/li>\n<li>rear-side weld studs<\/li>\n<li>adhesive bonding<\/li>\n<li>welded steel rings<\/li>\n<\/ul>\n<p>Each method has different application conditions, control points and possible deviations. Specific parameters must still be checked against the correct technical data sheet for the material being installed.<!-- notionvc: d6291694-1a4a-41c5-8dfc-01af8fe609cf --><\/p>\n<p><!-- notionvc: dbcf74de-bb20-44be-8a83-3a8ebcf9c9b3 --><\/p>\n<figure id=\"attachment_9078\" aria-describedby=\"caption-attachment-9078\" style=\"width: 468px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9078 size-full\" src=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/Screenshot-2026-09-22-100946.webp\" alt=\"\" width=\"468\" height=\"181\" srcset=\"https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/Screenshot-2026-09-22-100946.webp 468w, https:\/\/giaanh.vn\/wp-content\/uploads\/2026\/08\/Screenshot-2026-09-22-100946-450x174.webp 450w\" sizes=\"auto, (max-width: 468px) 100vw, 468px\" \/><figcaption id=\"caption-attachment-9078\" class=\"wp-caption-text\"><span class=\"notion-enable-hover\" data-token-index=\"0\">Steel mesh, one of the methods used to secure non-metallic linings (Source: Kalenborn)<!-- notionvc: c5aa715c-ed5c-45bc-b6af-121fc6739bdb --><\/span><!-- notionvc: e246e555-9005-4b25-a63b-7408d1f04972 --><\/figcaption><\/figure>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/installing-anti-adhesion-linings\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 4: Installing anti-adhesion linings<\/span><\/a><\/h3>\n<p>When installing an anti-adhesion lining, the surface needs to remain smooth and continuous, without raised edges or uneven steps that obstruct material flow.<\/p>\n<p>This article covers:<\/p>\n<ul>\n<li>overlap direction<\/li>\n<li>intersection locations<\/li>\n<li>points where material build-up may begin<\/li>\n<li>how the surface should be arranged according to the direction of material flow<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/installation-at-the-interface-between-two-material-groups\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 5: Installation at the interface between two material groups<\/span><\/a><\/h3>\n<p>When two material groups meet on the same component, the issue no longer concerns each material independently.<\/p>\n<p>Key points include:<\/p>\n<ul>\n<li>which material group should be installed first<\/li>\n<li>how the gap at the interface should be handled<\/li>\n<li>waiting time between the two installation stages<\/li>\n<\/ul>\n<p>There is no single rule that applies to every material combination. Each new interface still needs to be evaluated according to the actual conditions.<!-- notionvc: abb4cf6e-c5ba-4674-b3ea-55b5504b5c81 --><\/p>\n<p><!-- notionvc: f4d52075-fb7f-4e13-89b8-cb78e035e529 --><\/p>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/handling-storage-and-preservation\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 6: Handling, storage and preservation<\/span><\/a><\/h3>\n<p>Material can be affected before machining even begins.<\/p>\n<p>Part 6 covers:<\/p>\n<ul>\n<li>lifting methods<\/li>\n<li>supporting methods<\/li>\n<li>plate condition during storage<\/li>\n<li>material temperature before machining<\/li>\n<li>surface condition before moving to the next stage<\/li>\n<\/ul>\n<p>This content places storage back in its proper position within the technical process rather than treating it only as a logistics activity.<!-- notionvc: cdeebda3-52a1-496f-b232-2efac947b48b --><\/p>\n<p><!-- notionvc: f0444d64-e667-47b6-b27b-e9dedad839a3 --><\/p>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/joint-design-and-installation-during-downtime\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 7: Joint design and installation during downtime<\/span><\/a><\/h3>\n<p>Joint design needs to be considered together with flow direction, gaps and installation sequence.<\/p>\n<p>Part 7 focuses on how installation work should be organized during downtime.<\/p>\n<p>Topics include:<\/p>\n<ul>\n<li>joint design<\/li>\n<li>installation sequence<\/li>\n<li>work milestones<\/li>\n<li>mandatory waiting times<\/li>\n<li>work organization during downtime<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/component-restoration-by-hardfacing\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 8: Component restoration by hardfacing<\/span><\/a><\/h3>\n<p>Not every worn component needs to be replaced.<\/p>\n<p>This article focuses on:<\/p>\n<ul>\n<li>build-up layers used to restore dimensions<\/li>\n<li>wear-resistant layers<\/li>\n<li>hardfacing consumables<\/li>\n<li>component condition before restoration<\/li>\n<li>profile after restoration<\/li>\n<\/ul>\n<p>For components with a functional profile, the restored geometry still needs to be controlled even if the hardfacing layer reaches the required hardness.<!-- notionvc: 620f012b-7833-43fb-a770-2deb31f63626 --><\/p>\n<p><!-- notionvc: 0958fba3-9bf6-4c1c-a9c7-d178eb13409a --><\/p>\n<h3><a href=\"https:\/\/giaanh.vn\/en\/knowledge\/selecting-the-appropriate-approach-for-actual-situations\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Part 9: Selecting the appropriate approach for actual situations<\/span><\/a><\/h3>\n<p>Unlike the previous eight technical parts, Part 9 does not introduce an additional procedure or new parameter.<\/p>\n<p>Instead, it serves as a <strong>guide<\/strong> that helps quickly narrow down the problem when a field issue occurs or when a new work scope is received, directing the reader to the relevant technical section.<\/p>\n<p>In addition to addressing specific situations, this part also helps:<\/p>\n<ul>\n<li>identify the content that should be prioritized according to the work position being handled<\/li>\n<li>recognize when the entire process needs to be reviewed rather than only correcting a local issue<\/li>\n<li>distinguish cases that can be handled using available data from those that require additional field data<\/li>\n<\/ul>\n<p><!-- notionvc: 6cb89994-da85-4402-872f-7169528f0d31 --><\/p>\n<h2><span style=\"color: #970d34;\">4. How to use this knowledge series<\/span><\/h2>\n<p>You do not need to read all nine articles in only one sequence.<\/p>\n<p>There are two ways to use the series depending on your objective.<\/p>\n<h3><span style=\"color: #970d34;\">4.1. When you want to understand the entire process<\/span><\/h3>\n<p>If you are building knowledge from the beginning, you can read the series in this order:<\/p>\n<p><strong>Cutting and forming \u2192 Welding \u2192 Lining fixing \u2192 Anti-adhesion lining \u2192 Material interface \u2192 Storage \u2192 Joint design and installation \u2192 Restoration<\/strong><\/p>\n<p>This sequence helps show how one stage can affect the next.<\/p>\n<h3><span style=\"color: #970d34;\">4.2. When you are dealing with a specific problem<\/span><\/h3>\n<p>If the issue has already occurred at the plant, you do not need to begin with <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/cutting-and-forming\/\" target=\"_blank\" rel=\"noopener\">Part 1<\/a><\/span>.<\/p>\n<p>Go directly to the article related to the problem.<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Situation<\/strong><\/th>\n<th><strong>Recommended article<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Preparing to machine a batch of material in a grade that has not previously been processed<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/cutting-and-forming\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 1: Cutting and forming<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Cracking appears at or near a weld<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/welding-high-hardness-steel\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 2: Welding high-hardness steel<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Lining repeatedly detaches or falls off<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/fixing-non-metallic-linings-field-installation-techniques\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 3: Fixing non-metallic linings<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Material builds up or flow is obstructed at a joint<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/installing-anti-adhesion-linings\/\"><strong>Part 4: Installing anti-adhesion linings<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Two material groups meet on the same component<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/installation-at-the-interface-between-two-material-groups\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 5: Installation at the interface between two material groups<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Plate deflection or another issue appears after storage<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/handling-storage-and-preservation\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 6: Handling, storage and preservation<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Planning installation within limited downtime<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/joint-design-and-installation-during-downtime\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 7: Joint design and installation during downtime<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>A component is worn and restoration is being considered<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/component-restoration-by-hardfacing\/\"><strong>Part 8: Component restoration by hardfacing<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>It is unclear where to begin the inspection or which stage the problem belongs to<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/selecting-the-appropriate-approach-for-actual-situations\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 9: Selecting the appropriate approach for actual situations<\/strong><\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>This approach is suitable when the knowledge series is used as a problem-based reference rather than being read sequentially from beginning to end.<\/p>\n<h2><span style=\"color: #970d34;\">5. Deviations that should be identified early<\/span><\/h2>\n<p>Many deviations during machining, installation and storage do not cause immediate failure at the time the work is performed.<\/p>\n<p>The table below helps quickly identify which stage the problem may relate to and which article should be reviewed in more detail.<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Deviation requiring attention<\/strong><\/th>\n<th><strong>Recommended article<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Thermal cutting performed without meeting thermal-control requirements<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/cutting-and-forming\/\"><strong>Part 1: Cutting and forming<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Bending below the minimum radius, rebending to correct the angle, or bending across an embossed marking<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/cutting-and-forming\/\"><strong>Part 1: Cutting and forming<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Using incorrect documentation or welding conditions that are unsuitable for the material<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/welding-high-hardness-steel\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 2: Welding high-hardness steel<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Cracking appears at or near a weld<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/welding-high-hardness-steel\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 2: Welding high-hardness steel<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Lining detaches, falls off or loses its bond<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/fixing-non-metallic-linings-field-installation-techniques\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 3: Fixing non-metallic linings<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Surface creates raised edges, steps or joints that obstruct flow<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/installing-anti-adhesion-linings\/\"><strong>Part 4: Installing anti-adhesion linings<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Two material groups meet but installation sequence, interface gap or waiting time has not been clearly defined<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/installation-at-the-interface-between-two-material-groups\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 5: Installation at the interface between two material groups<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Plate deflection, improper supporting or leftover plate returned to storage without proper handling<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/handling-storage-and-preservation\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 6: Handling, storage and preservation<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>Joint arrangement is unsuitable for the flow direction, or available downtime is insufficient for the required waiting periods<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/joint-design-and-installation-during-downtime\/\" target=\"_blank\" rel=\"noopener\"><strong>Part 7: Joint design and installation during downtime<\/strong><\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>A component is worn but it is unclear whether it should be restored or replaced<\/td>\n<td><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/giaanh.vn\/en\/knowledge\/component-restoration-by-hardfacing\/\"><strong>Part 8: Component restoration by hardfacing<\/strong><\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If the situation does not clearly fall into any of these groups, begin with <strong>Part 9: Selecting the appropriate approach for actual situations<\/strong>.<\/p>\n<h2><span style=\"color: #970d34;\">6. Application principles and cases where specific data are required before making a decision<\/span><\/h2>\n<p>This knowledge series helps identify the problem, understand the points that need to be controlled and navigate to the appropriate in-depth article.<\/p>\n<p>However, when applying the information to a specific material, component or location, several general principles should be maintained, and cases requiring actual data before a decision is made should be clearly identified.<\/p>\n<h3><span style=\"color: #970d34;\">6.1. Refer to the correct documentation before using parameters<\/span><\/h3>\n<p>Each parameter needs to be determined according to:<\/p>\n<ul>\n<li>the correct material grade<\/li>\n<li>thickness<\/li>\n<li>process being used<\/li>\n<li>applicable technical documentation<\/li>\n<li>document revision<\/li>\n<\/ul>\n<p>The preheating requirement must be checked according to the exact grade and thickness range of the material being welded.<\/p>\n<p>Welding conditions need to be determined according to the specified procedure and welding consumables.<\/p>\n<p>The bending radius needs to be determined according to the exact grade, thickness and rolling direction of the plate.<\/p>\n<p>A parameter used for a previous batch remains valid only if the current batch still falls within the same applicable scope.<\/p>\n<h3><span style=\"color: #970d34;\">6.2. Evaluate based on condition, process and records<\/span><\/h3>\n<p>External appearance reflects only part of the condition of a component at the time of observation.<\/p>\n<p>Some problems may appear only after the material moves to the next stage, during storage or after the equipment returns to operation.<\/p>\n<p>The assessment should therefore combine:<\/p>\n<ul>\n<li>observed condition<\/li>\n<li>parameters used<\/li>\n<li>process followed<\/li>\n<li>inspection results from each stage<\/li>\n<li>material traceability data<\/li>\n<\/ul>\n<h3><span style=\"color: #970d34;\">6.3. Maintain documentation and traceability<\/span><\/h3>\n<p>Each machined component should retain a clear link to the incoming material and the work performed on it.<\/p>\n<p>Depending on the stage, records may include:<\/p>\n<ul>\n<li>material identification number<\/li>\n<li>parameters used<\/li>\n<li>inspection records<\/li>\n<li>photographs of locations requiring inspection<\/li>\n<li>execution time and mandatory waiting milestones<\/li>\n<li>person performing the work and person confirming the result<\/li>\n<\/ul>\n<p>The objective is to ensure that, if a problem occurs, it is possible to trace which material was used, what work was performed and under what actual conditions.<\/p>\n<h3><span style=\"color: #970d34;\">6.4. Cases where specific data are required before making a decision<\/span><\/h3>\n<p>Some decisions cannot be made based only on general principles. They require data from the specific material, component or field location being evaluated.<\/p>\n<h4>Interface between two material groups<\/h4>\n<p>When two material groups meet on the same component, the following need to be determined for the actual combination:<\/p>\n<ul>\n<li>installation sequence<\/li>\n<li>interface gap<\/li>\n<li>waiting time<\/li>\n<li>technical requirements of each material group<\/li>\n<\/ul>\n<p>Data from a previously used combination are only directly relevant to that same combination and corresponding operating conditions.<\/p>\n<h4>Scheduling during downtime<\/h4>\n<p>The installation schedule needs to be determined based on:<\/p>\n<ul>\n<li>work area<\/li>\n<li>access route<\/li>\n<li>ventilation<\/li>\n<li>number of people who can work simultaneously<\/li>\n<li>equipment conditions<\/li>\n<li>scope of work<\/li>\n<li>material waiting times<\/li>\n<\/ul>\n<p>These field data form the basis for determining the total duration and how the work should be organized.<\/p>\n<h4>Deciding between restoration and replacement<\/h4>\n<p>The decision should be based on:<\/p>\n<ul>\n<li>actual condition of the component<\/li>\n<li>amount of remaining base material<\/li>\n<li>number of previous restorations<\/li>\n<li>ability to restore the required profile<\/li>\n<li>lead time for a replacement component<\/li>\n<li>plant operating requirements<\/li>\n<\/ul>\n<p>These factors need to be considered together before deciding between restoration and replacement.<\/p>\n<h2><span style=\"color: #970d34;\">7. References<\/span><\/h2>\n<p>This knowledge series uses three groups of reference sources:<\/p>\n<ul>\n<li>technical standards<\/li>\n<li>manufacturer technical documentation<\/li>\n<li>Gia Anh&#8217;s practical experience<\/li>\n<\/ul>\n<p>These three groups serve different purposes.<\/p>\n<p>Standards are used for requirements and principles within the specific scope referenced.<\/p>\n<p>Manufacturer technical documentation is used for content that depends on the material and specific parameters.<\/p>\n<p>Gia Anh&#8217;s experience is used for field situations and practical work organization.<\/p>\n<h3><span style=\"color: #970d34;\">7.1. Referenced standards<\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th><strong>Standard<\/strong><\/th>\n<th><strong>Referenced content<\/strong><\/th>\n<th><strong>Scope of use in this knowledge series<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>EN 10163-2<\/strong><\/td>\n<td>Surface quality and edge condition of hot-rolled steel plate<\/td>\n<td>Surface and edge inspection<\/td>\n<\/tr>\n<tr>\n<td><strong>EN 1011-2<\/strong><\/td>\n<td>Recommendations for arc welding of ferritic steels and control of welding thermal conditions<\/td>\n<td>Welding high-hardness steel<\/td>\n<\/tr>\n<tr>\n<td><strong>EN ISO 3834-2<\/strong><\/td>\n<td>Comprehensive quality requirements for fusion welding<\/td>\n<td>Welding quality management<\/td>\n<\/tr>\n<tr>\n<td><strong>EN 14700<\/strong><\/td>\n<td>Welding consumables for hardfacing<\/td>\n<td>Restoration by hardfacing<\/td>\n<\/tr>\n<tr>\n<td><strong>EN ISO 8501-1<\/strong><\/td>\n<td>Assessment of surface cleanliness before coating<\/td>\n<td>Surface preparation before lining<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>These standards are referenced for their respective topics.<\/p>\n<p>The explanations in this knowledge series do not replace the full content of the standards.<\/p>\n<h3><span style=\"color: #970d34;\">7.2. Manufacturer technical documentation<\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th><strong>Manufacturer<\/strong><\/th>\n<th><strong>Document group<\/strong><\/th>\n<th><strong>Content used<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>SSAB<\/strong><\/td>\n<td>Hardox\u00ae fabrication and welding guidelines<\/td>\n<td>Cutting, forming, welding and grade-specific parameters<\/td>\n<\/tr>\n<tr>\n<td><strong>Kalenborn Kalprotect<\/strong><\/td>\n<td>Fabrication and installation guidelines for lining materials<\/td>\n<td>Fabrication of ceramics, fused cast basalt, hard compounds and related installation procedures<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Manufacturer documentation is particularly important for content that varies according to:<\/p>\n<ul>\n<li>material grade<\/li>\n<li>thickness<\/li>\n<li>material group<\/li>\n<li>fabrication method<\/li>\n<li>document revision<\/li>\n<\/ul>\n<p>When an article requires a parameter to be checked against a specific grade, this is the documentation group that should be consulted next.<\/p>\n<h3><span style=\"color: #970d34;\">7.3. Content based on Gia Anh&#8217;s experience<\/span><\/h3>\n<p>Some content in this knowledge series is based on Gia Anh&#8217;s practical experience, including:<\/p>\n<ul>\n<li>failures observed in the field<\/li>\n<li>the order of occurrence of certain fixing methods in project records<\/li>\n<li>how work is organized at material interfaces<\/li>\n<li>selected workshop inspection practices<\/li>\n<\/ul>\n<p>This content helps identify situations and organize practical work.<\/p>\n<p>It is not presented as an industry standard and does not replace standards or manufacturer technical documentation where those documents specify particular requirements.<\/p>\n<p>Correct machining and fabrication help materials retain the properties for which they were originally selected.<\/p>\n<p>In summary, to support equipment service life, pre-operation checks should not stop at confirming the material type. Each stage needs to be reviewed carefully, including cutting, forming, joining, storage and installation.<\/p>\n<p><!-- notionvc: 6b3e863c-0411-4285-b33f-8322117abd4e --><\/p>\n<p><!-- notionvc: 6ac2ac97-3af4-4a8e-ac8e-56c9a48489ac --><\/p>\n<p><!-- notionvc: 0e46c401-84f8-4467-b420-1aaee2d93648 --><\/p>\n","protected":false},"featured_media":8584,"parent":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"danh-muc-kien-thuc":[277],"class_list":["post-9452","kien-thuc","type-kien-thuc","status-publish","has-post-thumbnail","hentry","danh-muc-kien-thuc-machining-fabrication-and-installation"],"acf":[],"_links":{"self":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/kien-thuc\/9452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/kien-thuc"}],"about":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/types\/kien-thuc"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/media\/8584"}],"wp:attachment":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/media?parent=9452"}],"wp:term":[{"taxonomy":"danh-muc-kien-thuc","embeddable":true,"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/danh-muc-kien-thuc?post=9452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}