Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. Determination of tensile strength and yield strength testing machines ① adjustment disc pointer, Zhengyang pile testing institutions to align zero, and struck deputy pointer, the principal deputy pointer overlap. ② the specimen fixed in the grips of the machine, Pingyu pile testing organization, start testing machine stretched. Tensile speed: Before yielding, stress increases the speed of 10MPa / s; after yielding, Ying Yang pile testing departments, test machine movable chuck moving speed under load is not more than 05Lc / min (without turning the specimen Lc = l0 + 2h1). ③ stretch, the measured intensity of the disc pointer stops when rotating constant load, or excluding the minimum load during the initial transient effects, the yield strength of demand is the load Ps. ④ until it pulled off the specimen continuously applied load, maximum load Pb is read from the measured intensity of the disc. Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. Material that is outside the friction material mass and volume loss caused by the phenomenon known as wear and tear. Material by both friction and impact the quality and volume of the two effects caused by the phenomenon known as the abrasion loss. Building for the ground, stepping, steps, pavement materials, etc., should give due consideration to wear; pavement materials used in road works, must consider the wear and abrasion resistance performance; hydraulic engineering, such as overflow dam overflow face, sluice and concrete floor and other parts, pile testing, often by scouring effect of high-speed stream of entrained sand or gravel bottom entrainment effect of the impact of water and destruction, these areas need to be considered material to resist wear and abrasion performance. Greater hardness, high toughness, more dense structure in real time, its strong resistance to wear and abrasion. Jiyuan pile testing agency | malpractice inspection department (Online) | pile testing provided by the Construction Engineering Testing Co., Ltd. Henan malpractice. Henan malpractice Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) is a leader in Zhengzhou, construction, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In malpractice detected leadership with the staff warmly welcome all inquiries negotiations to create a better future malpractice detected.