Grinding balls heat treatment machine is used to do the quenching, tempering process for the casting grinding media balls and cylpebs with daily processing 15-30tons. The heat treatment furnace is tunnel type, the workpieces are loaded in the baskets.
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At the beginning of July, passed through almost half-year after signing the contract, tilting type heat treatment machine along with the other products, like mining used rollers, have dispatched to Shanghai port to Kenya company. The estimated delivery time is about 45days. Trust our client will be satisfied with our machine.
After the casting process drawing, the metal mold design can be carried out. The design content mainly includes determining the structure, size, core, exhaust system, and ejector mechanism of the metal mould. The designed metal mold should be simple in structure, convenient in processing, reasonable in material selection, safe and reliable
According to some characteristics of metal mold casting, the following points should be paid to when designing a gating system: The casting speed of metal is high, which is more than about 20% of the sand mold. Secondly, when the liquid metal is filled, the gas in the mold cavity should be removed smoothly, the […]
There are three types of parting surface: vertical, horizontal, and comprehensive (vertical, horizontal mixed parting, or curved surface parting). The principles for selecting the parting surface are as follows:
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.
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.
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