High manganese steel castings
1, the chemical composition of high manganese steel
High manganese steel in accordance with national standards are divided into five grades, the main difference is the carbon content in the range of 0.75% -1.45%. By the impact of large, low carbon content. Its scope of application of common high manganese steel grades are: ZGMn13-1 (C 1.10% ~ 1.50%) for low-impact member, ZGMn13-2 (C1.00% ~ 1.40%) for ordinary members, ZGMn13-3 (C0.90% ~ 1.30%) complex parts, ZGMn13-4 (C0.90% ~ 1.20%) is used for high-impact pieces. Manganese content of more than four kinds of steel grades were 11.0% to 14.0%. Manganese content is between 11.0% -14.0%, generally not less than 13%. Ultra-high manganese steel is no national standard, but the manganese content should be greater than 18%. Silicon content level of chromium is to improve the abrasion resistance, generally about 2.0%. Used to produce excavator shovel teeth, cone crusher broken wall and rolling wall, jaw crusher fork plate, ball mill liner, hammer, hammer and so on.
2, the high burden of quality assurance
Into the furnace material is determined by the chemical composition. The main charge is high-quality carbon steel (or ingots), high carbon ferromanganese, medium carbon ferromanganese, high-carbon ferrochrome and charge high manganese steel back. Remind here it is people think that as long as the appropriate chemical composition, you can go back to charge more. This understanding is wrong. The reason why some plant products of poor quality, are out of this. Not only high manganese steel, super high manganese steel, all metal castings, must not be excessive use of scrap, then return the excess charge how? As long as the waste to a minimum, it will not charge back to surplus.
High manganese steel under strong impact abrasive wear conditions, has excellent abrasion resistance, it is often used in mining, building materials, thermal power and other mechanical equipment, the production of wear parts. At low impact working conditions, due to work hardening effect is not obvious, high manganese steel can not play to the characteristics of the material, so please note that the majority of my friends.
Non-magnetic high manganese steel is the most prominent feature, is the best resolution of the property. Often used to make retaining ring in the motor industry. Density type of steel is 7.87 ~ 7.98g / cm3. Because the carbon and manganese contents are high, poor thermal conductivity of steel. Thermal conductivity 12.979W / (m • ℃), carbon steel is about 1/3. Because steel is austenitic, non-magnetic, magnetic permeability μ of 1.003 ~ 1.03 (H / m), that require non-magnetic working conditions can be selected.
2020.03.14 Pollutant emissions from Henan Jinyu Wear-resistant Materials Technology Co., Ltd.
Henan Jinyu Wear-resistant Materials Technology Co., Ltd. is located in Gongyi Private Science and Technology Pioneer Park. It is a comprehensive enterprise integrating production, sales and scientific research. It mainly produces high-end alloy castings such as wear-resistant, high-temperature resistant stainless steel and high chromium alloys. In August 2019, in order to better promote the company's sustainable development and further reduce the company's energy consumption level, the first round of clean production audits was voluntarily conducted. According to the "Measures for Cleaner Production Audit" and "Implementation Rules for the Cleaner Production Audit of Henan Province" (Yufa Gai Huanzi  No. 161), Henan Jinyu Abrasive Material Technology Co., Ltd. is now publishing the pollutants before the cleaner production audit. .
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2020.03.14 Henan Jinyu teaches you how to scientifically reduce the production cost of crusher hammer head
Henan Jinyu Wear-resistant Material Technology Co., Ltd. reminds the users of the sand and gravel production line: It is necessary to pay attention to what kind of material of the crusher hammer head can be used for efficient production. If the purchase is not proper, the hammer head production line's hammer head production efficiency will decrease, and the cost will increase. Some unnecessary elements make customers dissatisfied, which will have a great negative impact on their own sales. When choosing a crusher hammer manufacturer, we must understand it from various aspects. The method of reducing the production cost from the crusher hammer head in production is necessary, because the crusher hammer head is one of the main parts of the hammer crusher to crush the materials, and the wear is inevitable. Generally, the stone yard is usually Through the operation of labor and electricity, the cost is reduced. However, it will not be reduced too much. For the crusher hammer, a very effective way to reduce costs is to judge whether it can produce 50 more for the material plant in terms of service life. More than% of gravel. Wear of various crusher hammers in sand and stone production lines is inevitable, and the use of various high-violet steel and high-chrome wear-resistant castings is widely used, and professional foundry manufacturers will use their own research and development centers to solve a problem --How to increase the wear time of the content of wear-resistant elements. Jinyu Wear-Resistant Materials Research Center has its own special formula and patent on the wear-resistant element ratio of high-manganese steel and high-chrome wear-resistant castings. The various wear-resistant hammers produced have been recognized by local material factories.
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