Super hard alloy nozzle with super hard alloy is made precisely, the hardness up to HRA90 above, alloy nozzle ends and inner hole are all mirror processing, in order to protect the Qin envelope will not be scratched, steel and high hardness, not easy to bend, impact resistance, abrasion and blockage.
Inspection rules: 1, the wire shall be accepted by the supplier's technical supervision department, and ensure the quality of products meet the requirements of this standard. Buyers in the receipt of products should be tested, such as the test results do not meet the requirements of this standard should be received within three months from the date of the product to the supplier, the two sides negotiated settlement. 2, each batch of wire should be composed of the same grades and specifications, the number should not exceed 1000kg. 3, each volume (axis) wire should be measured in diameter, with the naked eye to inspect the appearance. 4, chemical composition analysis, can be in the furnace, but also in the finished product sampling, each batch to take a sample. 5, the test, even if there is a test result of a test sample is not qualified, it should be taken to double the number of samples for the project's heavy test.
