During the casting and processing, we must carefully inspect and record every step to avoid problems such as the solidity, surface finish, mechanical properties and final dimensions of the finished product. At the same time, in order to ensure the quality of the product, quality control must also be performed before delivery. Inspections give both factories and customers confidence that they can provide high-quality products.
We provide a variety of product testing services, and are equipped with special testing rooms such as product hardness testers, spectrometers, and ultrasonic testers. We use destructive and non-destructive testing designs to find product defects and provide customers with the highest quality products.
Visual Inspection uses the human eye to identify surface defects, cracks, air holes, pin holes, slag or sand inclusions, mis-runs, cold shuts, and shrinkage porosity. And all the inspection result must be documented and stored to record all the products made from our foundry.
Dimensional Inspection is undertaken to ensure a part meets dimensional requirements/tolerances. Although sometimes, the finished product looks perfect after visual inspection, it does not mean they can put into use without doubt. In this case, dimensional inspection is vital to guarantee. This can be done manually by using measuring tools for investment castings such as vernier caliper, depth indicator, dial indicator, ect., and designed testing gauge to do 100% testing for critical dimensions and with a coordinate measuring machine (CMM) that uses probes to get very precise measurements.
Chemical composition inspection
Chemical composition is the only characteristic that determines material specifications. Spectral analysis is the most widely used method in the detection of chemical composition of materials. Different metals have their own characteristics, and the error in the composition of any element will cause great trouble to users. Before product production, each material must be tested for the corresponding chemical composition of the material. With the help of a spectrometer, accurate test results can be obtained, showing the composition of each element in the material. At the same time, according to the test results, ensure that the test results meet the standard composition of the specified materials, and accept and record each batch of materials.
Mechanical property test
Mechanical testing is one of the most important parts of any material testing program. By pushing the material into a broken state, we can collect data to determine the ultimate tensile strength, yield strength, elongation and reduction area ratio, and hardness. We will conduct product mechanical tests to determine product quality. Testing confirms that the performance meets the specified mechanical requirements.