Low-pressure casting process

A low-pressure casting and process technology, which is applied in the field of low-pressure casting technology, can solve problems such as complex process, low production efficiency, and low product market competitiveness, and achieve the effects of simple process, improved work efficiency, and elimination of repetitive processes

Inactive Publication Date: 2016-06-01
重庆基石机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the low-pressure casting process is relatively complicated, and there is no unified specification and standard, resulting in uneven production of castings, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the market competitiveness of the products. high
For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences

Method used

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Embodiment Construction

[0009] The technical solution disclosed by the present invention is a low-pressure casting process, which is characterized in that it includes the following steps: 1) Preparation of tools and materials: fully stir the mold coating agent before use, check whether the ventilation of the mold baker is even, and prevent leakage at the joints Gas phenomenon, the spray gun must first check whether there is any leakage, and the sealing gasket, filter screen and high temperature resistant lubricating oil are ready;

[0010] 2) Mold preparation: confirm the mold model, specification, and ET escape according to the work order, adjust the mold travel switch on the mold machine, require no wrong mold, the limit is in place, open and close the mold for trial operation, check whether the operation is free, and shoot the pin out , Whether the reset is normal, when the mold is opened, the mold temperature is 380-450°C, and the baking mold is heated up when the temperature is not reached;

[0...

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Abstract

The invention discloses a low-pressure casting process. The process is characterized by comprising the following steps that (1) tools and materials are prepared, a mold coating agent is fully stirred before being used, whether ventilation of a mold baking device is uniform is checked, the air leakage phenomenon in the position of a connector is avoided, whether a spray gun leaks must be checked firstly, and sealing gaskets, filter screens and high-temperature-resistant lubricating oil are prepared; (2) a mold is prepared; (3) molten aluminum is prepared, and according to the requirements for the molten aluminum, the measured hydrogen density of the molten aluminum is not smaller than 2.45 g / cm<3>, the temperature of the molten aluminum is controlled according to requirements of a low-pressure production operation instruction, complete slagging-off must be conducted before and after the molten aluminum is added into a holding furnace, the storage time of the molten aluminum in the holding furnace is not longer than 4 h, and use of the molten aluminum is prohibited if the storage time is longer than 4 h; and (4) the mold opening temperature is required to reach 380-450 DEG C, the mold is closed for temperature uniformizing for 3-6 min, and the mold is opened into 3 pieces for making pouring rejected products, so that the temperature is balanced, and the mold temperature is increased. The low-pressure casting process is simple, multiple repeated procedures are omitted, and work efficiency is improved.

Description

technical field [0001] The invention relates to a low-pressure casting process. Background technique [0002] At present, the low-pressure casting process is relatively complicated, and there is no unified specification and standard, resulting in uneven production of castings, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the market competitiveness of the products. high. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a low-pressure casting process, which is simple in process, eliminates many repetitive processes, and improves work efficiency. [0004] In order to achieve the above object, the...

Claims

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Application Information

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IPC IPC(8): B22D18/04
Inventor 不公告发明人
Owner 重庆基石机械有限公司
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