According to the characteristics of the permanent mold casting process, in order to ensure the casting quality, simplify the permanent mold structure and make full use of its technical and economic benefits, the structure of permanent mold casting must be analyzed and a reasonable casting process must be worked out.
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Austenitizing is the first step in the quenching of Ductile Iron Castings. The austenitizing temperature is 860-880 °C, and the holding time is 1 hour for every 25mm thick casting, which is the same as that of normalizing and annealing. After the insulation is finished, it cools quickly in the flowing air. After quenching, the castings […]
Continuous hardening furnace is the tunnel type; the length of the furnace is usually long. Workpieces go through the inside of the furnace with different temperature sections. Hardening furnace consists of heating element, heat resistant material, refractory bricks, furnace front door, and back door, lifting system, hydraulic system, tipper. Each section of the furnace has […]
A.1 Under the following normal operating conditions, the ball broken rate and wear rate of the ball mill running for 2000h and 3000h are shown in Table A. 1.
Continuous tempering furnace is to heat treating the ferrous metal product, so as the casting grinding media balls. Casting grinding media balls are now widely used in cement, mines, thermal power station, and construction works. But the qualified grinding balls, especially for high chrome grinding balls, need to do the not only the quenching but […]
The grinding media is widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, and other industries ball mill. But what is the manufacturing process of the grinding media? We will explain here clearly. (Here we mainly talked about the casting grinding media.)
Automatic grinding media molding line is widely used to produce alloyed grinding media balls for different types and sizes. It adopts metal iron mold which can realize the chilling process to make the balls’ grains refining.
What is the grinding balls production line? The grinding balls production line is designed by Ningguo Hexin company. Adopts PLC intelligent automatic program control, which has the advantages of safety and energy-saving, high automation degree, stable product quality, high production efficiency, and simple operation.
7.1 The ball shall be inspected by the quality inspection department of the manufacturer. 7.2 Inspection classification: inspection is divided into factory inspection and type inspection. 7.3 The inspection items are diameter deviation (1), shape deviation(5.2), chemical composition (5.3), surface hardness (5.4.1), appearance quality (5.7.1,5.7.2).
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