We take quality as our Enterprise life,and numerous quality practices have been set up to control the quality of the castings and machining.We are consistently do whatever we can do to insure our customers receive the parts they want.
(1) ISO 9001:2008
We achieved certification to ISO-9000-2008.In this way,we standardized our production process,and made the quality stably,and also reduced the costs.
(2) Raw Material Inspection
Incoming raw material were kept in control strictly,because we believe raw material in good quality is the foundation of the high quality of the steel castings.
All the raw material like wax,water glass, Iron,ferro-molybdenum, chromium etc are bought from the certificated sources stably. Product quality documentations and inspection reports must be provided by the supplier,and random inspection will be implemented when the materials’ arrival.
(3) Computer Simulation
Simulation programs tools (CAD,Solidworks,PreCast) are used to make the engineering works of steel casting more predictable to eliminate the defects and improve the stability.
(4) Chemical Testing
Chemical composition analysis to the steel castings is required to ascertain the chemical composition of a heat of steel.
Specimen will be taken and tested both pre-pouring and post-pouring to control the chemical composition within the specification, and the results must be doubled checked again by the third inspectors.
The specimens being tested also are kept well for two years for tracking using.
Heat numbers can be made to keep the traceability of the steel castings.
(5) Non Destructive Testing
The non destructive testing can be processed to check the defects and inner structure of the steel castings.
1.Magnetic Particle Examination
2.Ultrasonic Flaw Detection
(6) Physical Testing
1, Metallographic Microscope
2.Hardness test machine
3. Tension tester
4. Impact strength tester
(7) Dimensional Inspection
Process audit will be implemented during the whole machining process of the steel castings according to the drawings and machining process card. After the steel casting parts being machined or finished the surface finish,three pieces or more pieces according to the requirements will be pick out at random,and dimensional inspection will be implemented.The inspection results are all recorded well,and represented on the paper as well as in the data-base by computer.
Our dimensional inspection can be the one or full of the following method.
1.Manual Dimensional Inspection
3. Image detection
4. Three -coordinates Measuring Machine