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Needle frame pressure casting process

A casting process and pressure technology, which is applied in the field of needle frame pressure casting process, can solve the problems that the accuracy of casting products cannot be effectively guaranteed, the quality of casting products is poor, and the metal utilization rate is low, so as to avoid quality defects, ensure casting quality, reduce The effect of labor intensity

Inactive Publication Date: 2015-05-20
QINGDAO WANGYU RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The needle frame pressure casting process generally includes the following steps: installing the mold, preheating the mold, cleaning the mold, spraying paint on the mold, etc. The current needle frame pressure casting process produces poor quality castings and low metal utilization. Not only are there many casting processes, which affect production capacity, but the precision of casting products cannot be effectively guaranteed, and the scrap rate is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The needle holder pressure casting process of the present embodiment comprises the following steps:

[0019] (1) Install the mold and preheat the mold, the preheating temperature is 330°C;

[0020] (2) Clean the mold and then spray paint on the mold;

[0021] (3) Place the mold on the mold clamping device for mold clamping;

[0022] (4) Select the injection specific pressure and filling speed, inject the liquid metal into the cavity and fill the cavity, the selection of the injection specific pressure should be determined according to the structural characteristics of different alloys and castings, the selection of filling speed, generally for thick For castings with high wall or internal quality requirements, lower filling speed and high boost pressure should be selected; for castings with thin walls or high surface quality requirements and complex castings, higher specific calendar and high filling pressure should be selected. The speed, the process of t...

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PUM

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Abstract

The invention discloses a needle frame pressure casting process. The needle frame pressure casting process includes the following steps of installing a mold, preheating the mold, cleaning the mold, spraying paint on the mold, placing the mold on a mold closing device for mold closing, selecting injection pressure and the filling speed, injecting liquid metal into a cavity until the cavity is full, continuing injection under the action of an injection punch until the cavity is filled with the liquid metal and an inner gate is completely solidified, taking out a casting by opening the cavity after pressure holding, and cleaning the casting. The needle frame pressure casting process has the advantages that it is guaranteed that products are good in quality and high in precision, strength and hardness, the machining quantity is small, a good deal of machining equipment and a large number of work hours are saved, the metal utilization rate is increased, both assembling work hours and metal are saved, production efficiency is high, and mechanization and automation are achieved easily.

Description

[0001] technical field [0002] The invention belongs to the technical field of casting, and in particular relates to a needle holder pressure casting process. [0003] Background technique [0004] The needle frame pressure casting process generally includes the following steps: installing the mold, preheating the mold, cleaning the mold, spraying paint on the mold, etc. The current needle frame pressure casting process produces poor quality castings and low metal utilization. Not only are there many casting processes, which affect production capacity, but the precision of casting products cannot be effectively guaranteed, and the scrap rate is high. [0005] Contents of the invention [0006] In order to overcome the above-mentioned technical problems in the prior art, the object of the present invention is to provide a needle holder die casting process, which can directly cast high-quality products and has a simple manufacturing process. [0007] The needle frame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/00
CPCB22D17/00
Inventor 梁松杰
Owner QINGDAO WANGYU RUBBER