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Casting method of zinc base alloy for stamping die basal body

A stamping die and zinc-based technology, which is applied in the field of mold manufacturing for large-scale outer cover parts of automobiles, can solve the problems of complex shape, high cost, and low yield, and achieve the effects of fast casting speed, low cost, and simple smelting process

Inactive Publication Date: 2009-12-16
上海赛科利汽车模具技术应用有限公司
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a casting method of zinc-based alloy for stamping die matrix, so as to overcome the problems of complex shape, low material yield and high cost in the existing die casting technology

Method used

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  • Casting method of zinc base alloy for stamping die basal body
  • Casting method of zinc base alloy for stamping die basal body
  • Casting method of zinc base alloy for stamping die basal body

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Embodiment Construction

[0015] to combine figure 1 and figure 2 The disclosed embodiments illustrate the invention in detail.

[0016] for making as figure 1 As shown in the shape of the mold, the whole casting process is mainly divided into two parts: pouring liquid production and casting production.

[0017] 1. Casting liquid production (melting):

[0018] Add the zinc alloy ingot or the reused zinc-based alloy mold into the electric furnace (it can also be added by mixing), heat until it is completely melted, continue to heat up to 420°C-480°C (preferably about 450°C) out of the furnace, and pour the zinc alloy liquid into the ladle 6 for preparation Pouring (melting time varies according to the power and tonnage of the electric furnace, and the melting time of a 1.5-ton electric furnace at 150KW / H is about 30 minutes).

[0019] The melting process is the preparatory work for subsequent casting production.

[0020] 2. Casting production: casting production is divided into the following steps...

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Abstract

The invention discloses a casting method of zinc base alloy for a stamping die basal body, including moulding, pouring, clotting and taking out cast product; wherein molten zinc base alloy is poured in a cavity exposed in the air during pouring. The invention is convenient in raw material (zinc base alloy) selection, a pouring system is not required to be designed during moulding as casting in open is adopted, the technology of removing the pouring system in post cleaning is spared, thus being convenient; the zinc base alloy cast product can be directly molten down to be utilized repeatedly, melting process is simple, cost is low, and casting speed is fast, thereby being especially applicable to making of fast moulding mould for car stamping parts; and especially for sample car mould of a large outer panel, cost can be saved and mould making period can be shortened, thus reducing development cost of entire car and shortening development period of entire car.

Description

technical field [0001] The invention relates to the manufacture of a sample mold for a large-scale outer cover part of an automobile, in particular to a casting method for manufacturing a stamping mold by using a zinc-based alloy. Background technique [0002] At present, the mold matrix materials of large-scale outer cover parts of domestic automobiles are cast iron and cast steel. Due to the strict requirements on material composition (doss of raw and auxiliary materials are used for ingredients, and the composition needs to be continuously tested and adjusted during the melting process), the molding process is complicated. (Arranging pouring process and feeding process are required), high requirements for smelting temperature control, long time (melting temperature exceeds 1500 ℃), low material yield (about 75%), complex cleaning (requires manual cutting and grinding of pouring riser and fly edge), and are prone to casting defects, leading to high costs; the manufacturing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D37/00
Inventor 杨周庆
Owner 上海赛科利汽车模具技术应用有限公司
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