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Optimizing method for production process of electric power fittings spacer bar frame low pressure casting

A technology of low-pressure casting and electric power fittings, which is applied in the field of low-pressure casting production process optimization of electric power fittings spacer bar frame, can solve the problems of unqualified performance or appearance, low production efficiency of products, poor gas exhaust, etc., and achieves a simple demoulding method Convenience, low maintenance cost, and low mold manufacturing cost

Active Publication Date: 2022-03-22
江苏捷凯电力器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. In order to prevent excessive pressure from causing excessive impact force of the metal liquid and entraining a large amount of air, the casting pressure is usually controlled between 0.020Mpa-0.025Mpa, but the lower pressure also brings about slow liquid flow, long filling time, The problem of low product production efficiency;
[0005] 2. Compared with high-pressure casting, low-pressure casting will greatly reduce the amount of liquid gas inclusions, but poor gas exhaust in the mold cavity will also cause liquid gas inclusions
However, if the casting contains gas, the surface of the product after T6 treatment will be densely bulged, and such a product is unqualified in terms of performance and appearance.

Method used

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  • Optimizing method for production process of electric power fittings spacer bar frame low pressure casting
  • Optimizing method for production process of electric power fittings spacer bar frame low pressure casting
  • Optimizing method for production process of electric power fittings spacer bar frame low pressure casting

Examples

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Effect test

Embodiment 1

[0075] A method for optimizing the production process of low-pressure casting of spacer bar frames for electric power fittings, comprising the following steps:

[0076] a. First prepare the special mold 1 for the spacer in advance; the special mold 1 for the spacer includes the upper and lower molds for opening the cavity of the spacer frame; the lower mold 11 adopts the dual flow mode of "radial flow of molten metal + circumferential flow of molten metal" Carry out the design, set the ring island groove at the bolt installation position insert 1111 on each node position on the lower model cavity 111, the ring island groove is connected with the pin shaft eye bone position 1113 on the one hand, and the edge bone position 1114 on the other hand Specifically, the ring island groove specifically includes the main groove 1112 that surrounds the bolt installation position insert 1111, the inflow groove 1115 that connects the pin shaft eye bone position 1113 with the main groove 1112...

Embodiment 2

[0087] A method for optimizing the production process of low-pressure casting of spacer bar frames for electric power fittings, comprising the following steps:

[0088] a. First prepare the special mold 1 for the spacer in advance; the special mold 1 for the spacer includes the upper and lower molds for opening the cavity of the spacer frame; the lower mold 11 adopts the dual flow mode of "radial flow of molten metal + circumferential flow of molten metal" Carry out the design, set the ring island groove at the bolt installation position insert 1111 on each node position on the lower model cavity 111, the ring island groove is connected with the pin shaft eye bone position 1113 on the one hand, and the edge bone position 1114 on the other hand Connected;

[0089] The upper mold 12 is embedded with a thimble module 13, and the thimble module 13 is fixed with a demoulding thimble group 131, an exhaust needle group 132 and a reset thimble group 133; 131 through the demoulding th...

Embodiment 3

[0097] This embodiment is further optimized on the basis of embodiment 2. The projection of the top of the inner exhaust slot 1351 in this embodiment on the outer layer 134 is located above the upper limit of the inner layer exhaust area; surface. This detailed treatment ensures that the gas in the internal and external exhaust channels is smoothly discharged into the atmosphere.

[0098] In this embodiment, the inner wall of the connection area 1345 of the outer layer member 134 is provided with an internal thread, and the inner layer member 135 is provided with an external thread matching the internal thread. It is easy to disassemble and assemble, and when one of the parts is damaged, the damaged part can be replaced directly, reducing costs and avoiding waste of resources.

[0099] In this embodiment, after the outer layer member 134 and the inner layer member 135 are fixedly connected, the end of the outer layer member 134 and the end of the inner layer member 135 are o...

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Abstract

The invention discloses a method for optimizing the production process of low-pressure casting of a spacer bar frame for electric power fittings, which belongs to the technical field of electric power fittings and solves the problems of low casting efficiency of the traditional spacer bar frame, poor filling and exhaust conditions, poor casting quality, and complex mold design. . It mainly includes the lower mold designed by the double flow mode of "metal liquid radial flow + metal liquid circumferential flow" and the upper mold embedded with doll-type exhaust needles. The method of the invention realizes the improvement of product quality and effectively improves the production efficiency of the product, the gas and liquid are smooth, the mold manufacturing cost is low, and considerable economic benefits are brought to the enterprise.

Description

technical field [0001] The invention belongs to the technical field of electric power fittings. Specifically, it relates to a fast gas-liquid flow rate, high smoothness of filling and exhaust, simplified mold design, good product compactness, no bulging phenomenon after T6 treatment, product production efficiency and product quality. A method for optimizing the production process of the low-pressure casting of the spacer bar frame of the electric power fitting with substantially improved quality. Background technique [0002] The spacer refers to the fittings installed on the split wires to fix the distance between the split wires to prevent the wires from whipping each other, suppress the breeze vibration and the vibration of the sub-gap. The spacer can be divided into two split spacers, four Split spacers, six-split spacers, eight-split spacers, and more. The patent application number is 201020234183.0, the application date is 2010.06.20, and the Chinese patent of the inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D18/04
CPCB22D18/04
Inventor 冷档定朱正林丁晓亮
Owner 江苏捷凯电力器材有限公司