The company and its subsidiary Shanghai Shenke have obtained 56 patents, including 1 invention patent, 53 utility model patents and 2 appearance patents. “ZQK Series Sliding Seat Bearings†has been assessed as a national key new product, national Torch Program project, and high-tech products in Zhejiang Province. The company was recognized as "Zhejiang Patent Demonstration Enterprise" by Zhejiang Provincial Intellectual Property Bureau and Zhejiang Economic and Information Committee. The company's editor-in-chief and participation in the preparation of 10 national standards and industry standards is one of the companies with the largest number of national standards and industry standards. The national standard of “Hydraulic Sliding Bearing with Radial Sliding Bearing under Steady State Conditions†edited by the company won the third prize of China Machinery Industry Science and Technology Award.
Foundry Furnace Charge (ferro Sulphur)-ZLJ
Ferro sulphur is generally used for increasing the sulfur content of gray pig iron or molten iron, too low sulfur in gray pig iron is harmful: poor inoculation effect, poor graphite shape and poor cutting performance.
Suitable range: 0.07%-0.12%. Sulfur makes the length of graphite shorter, the end becomes blunt, the shape becomes curved, and the mechanical properties are improved in the range. Resulfurization is required when the sulphur content is less than 0.05%.
Usage of ferro sulphur:after a small amount of iron is added in the electric furnace during the production of electric furnace, the ferro sulphur with a particle size of 8-25mm is added to the furnace according to the demand of sulfur, the ferro sulphur is pressed by adding iron, and they are smelted. The absorption rate is above 99%.
Advantages of ferro sulphur: the high efficient ferro sulphur for casting gray iron produced by our company can be used conveniently, safely and reliably with few impurities and high absorption rate up to 95%. Sulfur can be added to gray pig iron for improving the cutting performance, and improving the inoculation effect and graphite shape. Because sulfur can make the length of graphite shorter, the end becomes blunt, the shape is curved, and the mechanical properties of the gray pig iron are improved by resulfurization. It is beneficial to control the sulfur in gray pig iron within the range of 0.08%-0.12%.
Pyrite, Iron pyrites, pyrites lump, Ferro sulphur, Pyrites powder.
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