最新回复
-
GB/T 20173-2025 石油天然气工业用阀门
GB/T 20173-2025 石油天然气工业用阀门
-
GB/T 19575-2025 农产品批发市场服务技术指南
GB/T 19575-2025 农产品批发市场服务技术指南
-
GB/T 19054-2025 燃油式火化机通用技术条件
GB/T 19054-2025 燃油式火化机通用技术条件
原版高清可复制
-
GB/T 11026.7-2025 电气绝缘材料 耐热性 第7部分：确定绝缘材料的相对温度指数(RTI)
GB/T 11026.7-2025 电气绝缘材料 耐热性 第7部分：确定绝缘材料的相对温度指数(RTI)
-
全熔透焊缝就是一级焊缝吗？
根据《钢结构设计标准》GB 50017-2017，一级焊缝并不完全等同于全熔透型焊缝，但两者存在密切关联，具体如下：
[*]一级焊缝通常要求全熔透
在承受动荷载且需要进行疲劳验算的构件中，作用力垂直于焊缝长度方向的横
-
GB/T 11026.3-2025 电气绝缘材料 耐热性 第3部分：计算耐热特征参数的规程
GB/T 11026.3-2025 电气绝缘材料 耐热性 第3部分：计算耐热特征参数的规程
-
GB/T 17980.8-2026 农药 田间药效试验准则 第8部分：杀虫剂防治苹果小卷叶蛾
GB/T 17980.8-2026 农药 田间药效试验准则 第8部分：杀虫剂防治苹果小卷叶蛾
原版高清可复制
-
GB/T 17980.7-2026 农药 田间药效试验准则 第7部分：杀螨剂防治苹果叶螨
GB/T 17980.7-2026 农药 田间药效试验准则 第7部分：杀螨剂防治苹果叶螨
原版高清可复制
-
GB/T 17980.6-2026 农药 田间药效试验准则 第6部分：杀虫剂防治玉米螟
GB/T 17980.6-2026 农药 田间药效试验准则 第6部分：杀虫剂防治玉米螟
原版高清可复制
-
GB/T 17980.5-2026 农药 田间药效试验准则 第5部分：杀虫剂防治棉铃虫
GB/T 17980.5-2026 农药 田间药效试验准则 第5部分：杀虫剂防治棉铃虫
原版高清可复制
-
GB/T 17980.4-2026 农药 田间药效试验准则 第4部分：杀虫剂防治水稻飞虱
GB/T 17980.4-2026 农药 田间药效试验准则 第4部分：杀虫剂防治水稻飞虱
原版高清可复制
-
GB/T 17980.3-2026 农药 田间药效试验准则 第3部分：杀虫剂防治水稻叶蝉
GB/T 17980.3-2026 农药 田间药效试验准则 第3部分：杀虫剂防治水稻叶蝉
原版高清可复制
-
GB/T 17980.1-2026 农药 田间药效试验准则 第1部分：杀虫剂防治水稻鳞翅目钻蛀性害虫
GB/T 17980.1-2026 农药 田间药效试验准则 第1部分：杀虫剂防治水稻鳞翅目钻蛀性害虫
原版高清可复制
-
GB/T 11918.4-2014 工业用插头插座和耦合器 第4部分：有或无联锁带开关的插座和连接器
GB/T 11918.4-2014 工业用插头插座和耦合器 第4部分：有或无联锁带开关的插座和连接器
-
GB/T 11918.2-2014 工业用插头插座和耦合器 第2部分：带插销和插套的电器附件的尺寸兼
GB/T 11918.2-2014 工业用插头插座和耦合器 第2部分：带插销和插套的电器附件的尺寸兼容性和互换性要求
-
GB/T 11918.1-2014 工业用插头插座和耦合器 第1部分：通用要求
GB/T 11918.1-2014 工业用插头插座和耦合器 第1部分：通用要求
-
GB/T 30583-2026 承压设备焊后热处理规程
GB/T 30583-2026 承压设备焊后热处理规程
原版高清可复制，无水印
-
GB/Z 41561-2022 ISO 8124-1、EN 71-1和ASTM F963标准机械物理性能差异比对
GB/Z 41561-2022 ISO 8124-1、EN 71-1和ASTM F963标准机械物理性能差异比对
-
ISO 17636-1-2022 焊缝无损检测 射线检测 第1部分：带胶片的X射线和伽玛射线技术
ISO 17636-1-2022
Non-destructive testing of welds — Radiographic testing — Part 1: X- and gamma-ray techniques with film
焊缝无损检测 射线检测 第1部分：带胶片的X射线和伽玛射线技术
可复制高清完整
-
ISO 28921-1:2022 Industrial valves — Isolating valves for low-temperature appli
ISO 28921-1:2022 Industrial valves — Isolating valves for low-temperature applications — Part 1: Design, manufacturing and production testing
高清可复制完整版
-
DIN EN ISO 28921-2:2017 Industrial valves - Isolating valves for low-temperature
DIN EN ISO 28921-2:2017 Industrial valves - Isolating valves for low-temperature applications - Part 2: Type testing (ISO 28921-2:2015)
高清可复制
-
ASME B31P-2023 Standard Heat Treatments for Piping
ASME B31P-2023
Standard Heat Treatments for Piping
ASME Code for Pressure Piping, B31
高清可复制
-
Guide to methods for assessing the acceptability of flaws in metallic structures
Guide to methods for assessing the acceptability of flaws in metallic structures
-
Review of Experimental Fracture Toughness (KIC) of Aluminium Alloy and Aluminium
Review of Experimental Fracture Toughness (KIC) of Aluminium Alloy and Aluminium MMCs
-
The Benefits of GTAW Wire Feed Pipe Welding for Your High-Spec Project
The Benefits of GTAW Wire Feed Pipe Welding for Your High-Spec Project
The long-time standard for welding pipes is shielded metal arc welding (SMAW), commonly called “stick” because of the rod-shape
-
heat affected zone welding understanding the critical transition region
heat affected zone welding understanding the critical transition region
The heat-affected zone (HAZ) is the portion of base metal near a weld that experiences microstructural changes from heat, affect
-
Post Weld Heat Treatment, Structural Integrity, Critical Process
Post Weld Heat Treatment, Structural Integrity, CriticalProcessPost-weld heat treatment (PWHT) is a controlled heating and cooling process applied after welding to reduce residual stresses and improve
-
Understanding the Basics of the Stainless Steel Cladding Process
Understanding the Basics of the Stainless Steel Cladding Process
Cladding can enhance a metal’s corrosion-resistantproperties. The process involves the deposition of a corrosion-resistant alloy(CRA)
-
BS EN ISO 1:2022 Geometrical product specifications (GPS) — Standard reference
BS EN ISO 1:2022 Geometrical product specifications (GPS) — Standard reference temperature for the specification of geometrical and dimensional properties
-
Types of Welding Used in Pressure Vessels - ESAB Azərbaycan
Types of Welding Used in Pressure Vessels - ESAB Azərbaycan
Pressure vessels have been around since the dawn of the industrial revolution. They can be used to store a higher volume of products than w
-
BS ISO 965-1:2026 ISO general purpose metric screw threads — Tolerances — Part
BS ISO 965-1:2026 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
-
API 17D-2025 深度解析
API 17D-2025 深度解析
-
BS ISO 965-2:2024 ISO general purpose metric screw threads — Tolerances — Part
BS ISO 965-2:2024 ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for internal and external threads (tolerance classes 6H and 6g for M1,6 to M100 and 5H and 6h for M1
-
ISO 21013-4:2012+A1:2019 Cryogenic vessels — Pilot operated pressure-relief dev
ISO 21013-4:2012+A1:2019 Cryogenic vessels — Pilot operated pressure-relief devices — Part 4: Pressure-relief accessories for cryogenic service
-
ASME B16.34 标准深度解析
ASME B16.34 标准深度解析
-
BS EN ISO 13857-2019 机械安全 防止上肢和下肢触及危险区域的安全距离
BS EN ISO 13857-2019 机械安全 防止上肢和下肢触及危险区域的安全距离
-
Post Weld Heat Treatment Process (PHWT) _ Welding of Welders
Post Weld Heat Treatment Process (PHWT) _ Welding of Welders
The Post Weld Heat Treatment Process (PHWT), also known aspost-weld heat treatment or PWHT, is a thermal treatment applied to weldedmateria
-
ISO 18595:2021 Resistance welding — Spot welding of aluminium and alumini
ISO 18595:2021 Resistance welding — Spot welding of aluminium and aluminium alloys — Weldability, welding and testing
-
Post Weld Heat Treatment Explored and Explained
Post Weld Heat Treatment Explored and Explained
-
Arc Welding Heat-Affected Zone - ESAB Azərbaycan
Arc Welding Heat-Affected Zone - ESAB Azərbaycan
Welding obviously involves quite a lot of heat, and for every stick, flux-core, MIG, or TIG, there is a corresponding arc welding heat-affected zone
-
TIG Tungsten Size：How to Choose the Right Electrode
TIG Tungsten Size：How to Choose the Right Electrode
Tungsten inert gas (TIG) welding, otherwise known as gas tungsten arc welding (GTAW), is known for producing a clean and precise weld, and tungsten
-
What Is the Difference Between Cladding and Overlay - ESAB Azərbaycan
What Is the Difference Between Cladding and Overlay - ESAB Azərbaycan
Cladding and overlay are commonly used terms in welding. In manufacturing, the cladding and overlay processes are implemented to
-
平板能量导向器厚度对热塑性复合材料超声焊接过程中热量产生的影响
On the effect offlat energy directors thickness on heat generation during ultrasonic welding ofthermoplastic composites平板能量导向器厚度对热塑性复合材料超声焊接过程中热量产生的影响ABSTRACTThis paper
-
激光-GMAW 混合焊接高强度低合金钢微观组织中的热输入影响
Heatinput effect in the microstructure on High Strength Low Alloy Steel welded by Laser-GMAWHybrid Welding激光-GMAW 混合焊接高强度低合金钢微观组织中的热输入影响A B S T R A C T The temperature cycles u
-
All you need to know about the heat-affected zone
All you need to know about the heat-affected zone
Most sheet metal cutting techniques are based on localized melting of the material (see Figure 1). The area between the melted part and the unaffected
-
焊接中热影响区（HAZ）的理解：对冶金变化与控制的深入探讨
Understanding the Heat-Affected Zone (HAZ) in Welding: A Deep Dive into Metallurgical Changes and Control
焊接中热影响区（HAZ）的理解：对冶金变化与控制的深入探讨
TheHeat-Affected Zone (HAZ) is one of
-
All About Heat Affected Zone (HAZ) in Metal Cutting
All About Heat Affected Zone (HAZ) in Metal Cutting
TheHAZ is an area of metal that hasn’t been melted and has instead undergonechanges in properties due to being exposed to high temperatures during
-
Heat Affected Zones： What It Really Means - MRC Industries
Heat Affected Zones： What It Really Means - MRC Industries
We’veall heard about heat affected zones and how they can impact cutting orfabrication quality. In this quick guide, learn what HAZ really
-
Heat Affected Zone (HAZ) – caught in the middle
Heat Affected Zone (HAZ) – caught in the middle
-
Heat Affected Zone in Welded Metallic Materials
Heat Affected Zone in Welded MetallicMaterialsAbstractReceived Date: October 16, 2020Published Date: November 04, 2020Welding is used extensively for pipe welding, aerospace, aviation, biomedical imp
-
Heat-Affected Zone Stainless Steel – An Overview
Heat-Affected Zone Stainless Steel – An Overview
When working with stainless steel, it is important to understand the concept of a Heat Affected Zone (HAZ). This zone refers to the area of metal that
-
Heat Affected Zone in laser cutting for aerospace components
HeatAffected Zone in laser cutting for aerospace componentsIn aerospace and aeronautical manufacturing, fiber lasers have revolutionized cutting techniques and are now standing toe-to-toe with non-the
-
等离子弧焊接和切割
结果: 找到 “等离子弧焊接和切割” 相关内容 0 个
-
薄壁导管的焊接和钎焊
结果: 找到 “薄壁导管的焊接和钎焊” 相关内容 0 个
-
AWS A5.5-2022 低合金钢焊条规范
-
澳大利亚AS 1210压力容器认证：WorkSafe注册全流程指导
澳大利亚AS 1210压力容器认证：WorkSafe注册全流程指导在澳大利亚工业领域，压力容器的安全使用受到严格监管，AS 1210标准作为压力容器设计、制造和检验的核心规范，配合WorkSafe机构的注册要求，构成了完整的认证体
-
墨西哥NOM-20认证压力容器：SECOFI审核快速通道
墨西哥NOM-20认证压力容器：SECOFI审核快速通道在全球化贸易背景下，墨西哥作为北美重要市场，其产品合规性认证成为企业进入该地区的关键门槛。其中，压力容器作为工业领域核心设备，必须通过墨西哥官方NOM-20认证标
-
加拿大CRN注册压力容器：各省差异化要求的应对策略
在加拿大，压力容器的设计、制造和使用必须符合严格的法规要求，其中CRN（Canadian Registration Number）注册是确保设备合规的关键环节。然而，加拿大各省对压力容器的监管要求存在显著差异，这给制造商和进口商带
-
新加坡MOM认证压力容器：SS 638标准符合性验证服务
新加坡MOM认证压力容器：SS 638标准符合性验证服务新加坡作为全球重要的工业枢纽和航运中心，其压力容器安全标准一直备受国际认可。其中，新加坡人力部（MOM）制定的SS 638标准是压力容器安全认证的核心规范。本文将
-
ASME U 钢印取证用示范容器图纸 CAD版,可编辑版下载
ASME U 钢印取证用示范容器图纸 CAD版,可编辑版下载
**** 本内容被作者隐藏 ****
螺丝到底该不该抹油？16 阅读微文分享
垫片的类型和选用0 阅读微文分享
管道壁厚计算公式比较43 阅读微文分享
论坛事务
外语角
休闲娱乐
招聘求职
广告信息
微信公众号
官方抖音号