Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

location：
HOME ≡ QUALITY ASSURANCE ≡ Qualification ≡ Strict quality appraisal procedures
  
  
Strict quality appraisal procedures
Source: | Author:hkw1fcd1a | Published time: 2016-04-18 | 10228 Views | Share:
The quality of the materials is mainly determined by 3 factors:

 Steel composition = raw material (steel sand / scrap + alloy) + smelting (equipment + process)
Production process = steel embryo → preheating → forging / rolling → heat treatment
Quality management = hardness testing + ultrasonic testing + physical and chemical analysis


We not only have a large sales network, while maintaining good relations with famous steel mills around the world, so that we have the ability to a reasonable price to the steel mills directly purchase large quantities of high-quality steel.
Steel mills will require steel mills to produce high-quality steel that meets the standard requirements, so that customers can enjoy high-quality steel at reasonable prices.
We have strict quality control of steel, each batch of steel purchased are required according to international standards for quality control, so that customers can feel at ease to use. If customers encounter steel applications, we will send experts to help solve.
Here you can rest assured that the procurement of steel, every dollar you pay will can buy enough steel.
In order to effectively verify the quality of steel, we have purchased various types of precision testing instruments to ensure that the quality and types of steel products comply with international standards. Related detection equipment can detect the steel of the metal, composition, internal organization, hardness, toughness, crystal and so on.

 


Hardness test： hardness testing of special steel purchased

 

Tensile strength test： verification of the mechanical strength of steel

 

UT inspection：According to the highest European standards 100% ultrasonic flaw detection 

Impact strength test： verification of the impact strength of steel， to determine the material in different state (hardness) of the toughness or ductility.

 

Chemical composition detection: using spectrum analyzer to detect special steel purchased，check the chemical composition in steel mill certificate

 

 Metallographic examination: the purchase of each batch of steel (by furnace number) for sample testing, testing the inherent quality of steel.

SEM electron microscope:  more thorough testing of the quality of steel and
professional failure analysis ability of steel







Certificate of Original mill material quality






Heat treatment inspection report

 




Dimensional inspection report