<blockquote id="ojex3"></blockquote>
    1. 伊人久久大香线蕉AV网禁呦,午夜大片免费男女爽爽影院,四虎在线播放亚洲成人,亚洲国产日韩一区三区,深夜福利资源在线观看,強壮公弄得我次次高潮A片,国产精品亚洲二区在线播放,国内极度色诱视频网站
      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: 成年午夜免费韩国做受视频 | 国产av一区二区三区综合| 一区二区三区国产不卡| 国产成人综合在线观看不卡| 亚洲情色av一区二区| 日韩A人毛片精品无人区乱码| 亚洲av永久无码精品网站| 天堂а√在线地址中文在线| 亚洲精品国模一区二区| 桃花岛亚洲成在人线AV| 人妻教师痴汉电车波多野结衣| 青草青草久热精品视频在线播放| 极品尤物被啪到呻吟喷水| 久久―日本道色综合久久| 扒开粉嫩的小缝隙喷白浆视频| 国产亚洲一区二区三区成人| 久久久久免费看成人影片| 黄冈市| 国产成人综合在线观看不卡| 国产免费高清69式视频在线观看 | 自拍偷在线精品自拍偷免费| 亚洲精品电影院| 亚洲av与日韩av在线| 最新亚洲人成网站在线影院| 无码日韩精品一区二区三区免费| 欧美和黑人xxxx猛交视频| 国产精品偷伦费观看一次 | 野外做受三级视频| 无套内谢少妇毛片aaaa片免费 | 91精品国产自产91精品| 亚洲成人四虎在线播放| 好爽毛片一区二区三区四| 国产精品自拍自在线播放| аⅴ天堂中文在线网| 国内精品久久久久影院薰衣草| 亚洲成人av在线资源| 未满十八18禁止免费无码网站| 亚洲午夜精品久久久久久抢| 自拍日韩亚洲一区在线| 国产一级小视频| 日本欧美一区二区三区在线播放|