{"id":1347,"date":"2026-02-03T07:40:57","date_gmt":"2026-02-03T07:40:57","guid":{"rendered":"https:\/\/www.shijievt.com\/?post_type=product&#038;p=1347"},"modified":"2026-02-25T01:55:02","modified_gmt":"2026-02-25T01:55:02","slug":"pressure-vessel-manufacturing","status":"publish","type":"product","link":"https:\/\/www.shijievt.com\/fr\/produit\/pressure-vessel-manufacturing\/","title":{"rendered":"Fabrication de cuves \u00e0 basse pression"},"content":{"rendered":"<h3>I. Standards and Specifications (Basic Bases)<\/h3>\n<h4>Domestic Standards<\/h4>\n<ul>\n<li><strong>GB 150\u300aPressure Vessels\u300b<\/strong>: General requirements covering the entire process, including design, manufacturing, and inspection.<\/li>\n<li><strong>GB 151\u300aHeat Exchangers\u300b<\/strong>: Specific requirements for heat exchanger-type pressure vessels.<\/li>\n<li><strong>TSG 21\u300aSafety Technical\u00a0 Code for Fixed Pressure Vessels\u300b<\/strong>: Statutory regulatory requirements that must be strictly adhered to.<\/li>\n<li><strong>GB\/T 15704\u300aSteel Forgings for Pressure Vessels\u300b<\/strong>: Requirements for material quality.<\/li>\n<\/ul>\n<h4>International Standards<\/h4>\n<ul>\n<li><strong>ASME \u2167\u300aPressure Vessels\u300b<\/strong>: Widely recognized globally, applicable to exported products.<\/li>\n<li><strong>EN 13445\u300aPressure Equipment Directive\u300b<\/strong>: Standard of the European Union.<\/li>\n<\/ul>\n<h3>II. Material Requirements (Core Foundation)<\/h3>\n<h4>Material Selection<\/h4>\n<ul>\n<li><strong>Common Materials<\/strong>: Q345R (Low-alloy High-strength Steel for Vessels), 16MnR, Stainless Steel (304\/316L), Carbon Steel, etc.<\/li>\n<li><strong>Material Requirements<\/strong>: Must possess good strength, toughness, and weldability, and be accompanied by valid material certificates (quality assurance documents).<\/li>\n<\/ul>\n<h4>Material Inspection<\/h4>\n<ul>\n<li><strong>Incoming Inspection<\/strong>: Verify material certificates, perform spectral analysis, and conduct mechanical property tests.<\/li>\n<li><strong>Unauthorized Use of Unqualified or Counterfeit Materials is Strictly Prohibited<\/strong>.<\/li>\n<\/ul>\n<h3>III. Manufacturing Equipment and Processes<\/h3>\n<h4>Main Equipment<\/h4>\n<ul>\n<li><strong>Cutting Equipment<\/strong>: CNC Plasma Cutters, Laser Cutters (to ensure precision of material cutting).<\/li>\n<li><strong>Forming Equipment<\/strong>: Plate Bending Machines (for rolling cylinders), Head Spinning Machines (for forming heads).<\/li>\n<li><strong>Welding Equipment<\/strong>: Automatic Welding Machines, TIG Welding Machines (to ensure welding quality).<\/li>\n<li><strong>Machining Equipment<\/strong>: Lathes, Milling Machines, Drilling Machines (for processing accessories).<\/li>\n<li><strong>Inspection Equipment<\/strong>: Non-destructive Testing (NDT) Equipment (UT\/MT\/PT\/RT), Hardness Testers, Thickness Gauges.<\/li>\n<\/ul>\n<h4>Key Processes<\/h4>\n<ul>\n<li><strong>Cutting<\/strong>: Precision cutting to avoid material waste.<\/li>\n<li><strong>Forming<\/strong>: Cylinder rolling and head forming to ensure dimensional accuracy.<\/li>\n<li><strong>Welding<\/strong>: Strictly execute Welding Procedure Specifications (WPS), adopt multi-layer and multi-pass welding to avoid welding defects.<\/li>\n<li><strong>Heat Treatment<\/strong>: Eliminate welding stresses and improve material properties (e.g., annealing, tempering).<\/li>\n<\/ul>\n<h3>IV. Personnel Requirements (Necessary Qualifications)<\/h3>\n<h4>Certificated Employment<\/h4>\n<ul>\n<li><strong>Welders<\/strong>: Must hold a <strong>Special Equipment Welding Operator Certificate<\/strong> with a welding scope that covers the products.<\/li>\n<li><strong>Inspectors<\/strong>: Must hold a <strong>Special Equipment Inspector Certificate<\/strong> and be responsible for non-destructive testing and visual inspection.<\/li>\n<li><strong>Designers<\/strong>: Must possess qualifications in pressure vessel design.<\/li>\n<li><strong>Managers<\/strong>: Must be familiar with relevant standards and regulations.<\/li>\n<\/ul>\n<h4>Professional Training<\/h4>\n<ul>\n<li>All personnel must receive regular professional training to keep abreast of the latest standards and operating procedures.<\/li>\n<\/ul>\n<h3>V. Quality Control Process<\/h3>\n<h4>In-process Inspection<\/h4>\n<ul>\n<li><strong>Raw Material Inspection<\/strong>: Verify material certificates and conduct mechanical property tests.<\/li>\n<li><strong>Cutting Inspection<\/strong>: Check dimensions and groove angles.<\/li>\n<li><strong>Welding Inspection<\/strong>: Perform visual inspection and non-destructive testing (UT\/MT\/PT\/RT).<\/li>\n<li><strong>Forming Inspection<\/strong>: Check dimensional accuracy and surface quality.<\/li>\n<\/ul>\n<h4>Final Product Inspection<\/h4>\n<ul>\n<li><strong>Hydrostatic Test<\/strong>: Conducted via water pressure testing or pneumatic testing to verify tightness and strength.<\/li>\n<li><strong>Air Tightness Test<\/strong>: To check for leaks.<\/li>\n<li><strong>Visual Inspection<\/strong>: Ensure the surface is free of defects and dimensions meet requirements.<\/li>\n<\/ul>\n<h4><strong>Documentation<\/strong><\/h4>\n<ul>\n<li>Complete quality certification documents must be issued, including material certificates, welding records, inspection reports, and certificates of conformity.<\/li>\n<\/ul>\n<h3>VI. Safety and Environmental Protection Requirements<\/h3>\n<h4>Safety Requirements<\/h4>\n<ul>\n<li>Strictly comply with safety operating procedures during manufacturing and ensure the \u914d\u5907 of safety protection facilities.<\/li>\n<li>For vessels containing toxic or flammable media, special protective measures must be implemented.<\/li>\n<\/ul>\n<h4>Environmental Protection Requirements<\/h4>\n<ul>\n<li>Welding fumes, wastewater, and waste materials must comply with environmental standards and be properly disposed of.<\/li>\n<\/ul>\n<h3>VII. Certification and Registration<\/h3>\n<h4>Product Certification<\/h4>\n<ul>\n<li>A <strong>Special Equipment Manufacturing License (TS Certification)<\/strong> is required to manufacture pressure vessels.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Low-pressure vessel manufacturing refers to the production process of pressure vessels with a design pressure ranging from 0.1 MPa to 1.6 MPa. It is based on strict compliance with national and industry standards (such as GB 150 and ASME \u2167), and ensures quality throughout the entire process, including raw material inspection, cutting and forming, welding and assembly, heat treatment, non-destructive testing, and pressure testing. The final product is a pressure-bearing equipment that meets the requirements of industrial safety and application.<\/p>","protected":false},"featured_media":1666,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[42],"product_tag":[],"class_list":{"0":"post-1347","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pressure-vessel","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/product\/1347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/comments?post=1347"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/media\/1666"}],"wp:attachment":[{"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/media?parent=1347"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/product_brand?post=1347"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/product_cat?post=1347"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.shijievt.com\/fr\/wp-json\/wp\/v2\/product_tag?post=1347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}