• <u id="j6k2k"><li id="j6k2k"></li></u>
        <menu id="j6k2k"><u id="j6k2k"></u></menu>
      1. <p id="j6k2k"><label id="j6k2k"></label></p>
      2. 久久国产精品77777,亚洲VA欧美VA国产综合,亚洲AV日韩AV天堂一区二区三区,亚洲中文无码av永久伊人,色噜噜狠狠色综合免费视频,亚洲最大成人av在线,老司机精品福利在线资源,三上悠亚精品专区久久
        Hotline:400-880-1556

        English




        basic introduction

        Through various mechanical tests to determine the various mechanical performance criteria of metal materials. The properties of metal related to elasticity and inelasticity and related to stress-strain are all mechanical properties of metal. In the process of researching and developing new materials, improving material quality, designing and using metal parts, etc., mechanical properties are the most important performance indicators, and are indispensable items in the performance testing of metal plastic processing products. Mechanical performance tests generally include tensile test, torsion test, compression test, impact test, hardness test, stress relaxation test, fatigue test, etc. Stress relaxation test and fatigue test do not belong to the routine mechanical properties inspection of materials.

        Test items

        Hardness Testing

        Hardness is a characterization of the ability of a metal to resist deformation or cracking in a local volume of the surface. It not only has an approximate empirical relationship with the static strength and fatigue strength of the material, but also indirectly exists with process performance such as cold formability, machinability and weldability. Some links. Therefore, the hardness value has certain reference significance for controlling the quality of the hot and cold machining process of the material.

        Elasticity test

        Static stretching can determine the most basic mechanical properties of materials during elastic deformation, plastic deformation and fracture, including elastic modulus, yield strength, tensile strength, elongation and shrinkage rate. These performance indicators are the basic properties inherent in materials and an important basis in engineering design.

        Impact test

        The impact test can obtain dynamic performance indicators such as impact toughness and impact absorption work. It is extremely sensitive to the brittleness tendency issues and the metallurgical quality and internal defects of the material. Approach.

        standard test

        Test items

        standard test

        Hardness (Brinell hardness,   Rockwell hardness, Leeb hardness, Vickers hardness, etc.)

        GB/T 231.1-2002GB/T 230.1-2004

        GB/T 17394-1998GB/T 4340.1-1999

        ISO 6507-1:2005(E)JIS Z2252-1991

        Normal temperature stretching

        GB/T 228-2002ISO 6892:1998

        GB/T 5027-1999GB/T 5028-2008

        GB/T 24174-2009

        High temperature stretching

        GB/T 4338-2006

        Low temperature stretching

        GB/T 13239-2006

        bending

        GB/T 232-1999

        Impact (normal temperature impact,   low temperature impact, high temperature impact)

        GB/T 229-2007

        fatigue

        GB/T 4337-2008GB/T 3075-2008

        GB/T 6398-2000

        Cupping

        GB/T 4156-2007

        Drawing and drawing load

        GB/T 15825.3-2008

        Cone cup

        GB/T 15825.6-2008

        Reaming

        GB/T 15825.4-2008

        Our advantage

        1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

        2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

        3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.


        Online consultation

        Online consultation

        Recommend
        • Australian RCM certification

          Australian RCM certification

          Australian RCM certification

        • Label printer ANATEL certification

          Label printer ANATEL certification

          Label printers entering the Brazilian market, ANATEL certification is an essential passport! It is the recognition of the Brazilian Telecommunications Authority for the safety and compliance of electronic products, without which products cannot be legally sold.

        • Label printer SRRC certification

          Label printer SRRC certification

          SRRC certification is not only a guarantee of product compliance, but also a key to opening up the market.

        Mechanical properties test

        Through various mechanical tests to determine the various mechanical performance criteria of metal materials. The properties of metal related to elasticity and inelasticity and related to stress-strain are all mechanical properties of metal.

        Get a quote
        主站蜘蛛池模板: 色偷偷色噜噜狠狠成人免费视频| 人妻社区| 中文字幕乱码亚洲无线三区| 最新国产精品第1页| 欧美成人看片一区二三区图文| 亚洲国产精品成人综合色在| 男人天堂2024手机在线| 色伊人综合| 日本人妻丰满熟妇区| 南岸区| 免费毛片视频网站| 激情射精爆插热吻无码视频 | 日本久久99成人网站| 久久中文字幕亚洲综合| 亚洲国产香蕉视频欧美| 人妻少妇久久久久久97人妻| 国产精品国产伦子伦露看| 最近中文字幕免费MV在线视频| 国产精品国产AV片国产| 国产亚洲精品久久久久久牛牛| 亚洲精品在线二区三区| 67194欧洲| 成人午夜国产内射主播| 99久久九九视频免费| 久久99国产综合精品女同| 青青草原网站在线观看| 免费观看男女性高视频| 熟女在线国产| 无码AV一区在线观看免费| 成 人国产在线观看高清不卡| 蜜桃传媒av免费观看麻豆| 日韩中文字幕高清有码| 91导航|综合网| 无人区码一码二码w358cc| 蓝莓5秒跳转隐藏通道2025| 狠狠综合久久久久尤物| 99爱在线| 国内自拍偷拍一区二区三区| 婷婷色小说| 无套内内射视频网站| 国产91精品久久久久999|