<s id="k82sw"><acronym id="k82sw"></acronym></s>
<sup id="k82sw"><samp id="k82sw"></samp></sup>
<noscript id="k82sw"><table id="k82sw"></table></noscript>
  • <li id="k82sw"></li>
    <dfn id="k82sw"></dfn>
    国产无码久久,久久99视频,欧洲无码视频,国产免费AV网站,色诱久久,jjzz国产,国产亚洲成人网,橹橹色
    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
    • 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.

    • Label printer FCC ID authentication

      Label printer FCC ID authentication

      FCC ID certification is a mandatory certification for electronic products by the Federal Communications Commission (FCC) in the United States, and it is essential for label printers to obtain this certification.

    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: 一级一级特黄女人精品毛片视频| 曰批免费视频播放免费直播| 潮喷失禁大喷水无码| 国产在热线精品视频国产一二| 欧美高清第6页| 911国产精品| free性丰满白嫩白嫩的HD| 青草99在线免费观看| 熟女精品视频一区二区三区| 免费性爱视频| 熟女一区| 日韩精品一区二区午夜成人版 | 最近2019中文字幕大全第二页 | 国产精品99久久免费| 欧美天堂在线| 无码人妻精品一区二区蜜桃91| 无码AV在线播放| 久久久精品2019中文字幕之3| 免费在线观看A| 无码中出人妻| 欧美另类图区清纯亚洲| 色天天综合久久久久综合片| 一色道久久88加勒比一| 熟女亚洲精品| 五月婷婷激情| 狠狠躁天天躁中文字幕无码| 国产麻豆剧传媒精品国产av| 欧美精品xxx| 亚洲一区二区中文| 精品国产乱子伦一区二区三区| 久久人妻夜夜肏| A级毛片无码兔费真人久久| 99视频在线| 超碰99热| 美女高潮黄又色高清视频免费| 亚洲午夜福利| 黄床大片免费30分钟国产精品| 一本本月无码-| 国产精品a久久久久| 天天射人妻| 欧美日韩v|