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A gating system for preventing ceramic core fracture

A pouring system, ceramic core technology, applied in the direction of core, casting mold, casting mold composition, etc., can solve the problems of not being able to ensure timely delivery of blades, high scrapping rate of ceramic core fracture, blade casting scrapping, etc., to shorten the research and development Cycle time, reduction of fracture scrap rate, and improvement of qualified rate

Active Publication Date: 2017-05-03
GUIYANG AVIC POWER PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the blade castings after pouring are inspected by X-ray perspective, the scrap rate of ceramic core fracture is as high as 90%, which cannot meet the technical requirements, resulting in a large number of blade castings being scrapped, causing huge economic losses to the factory, and at the same time, the production efficiency is low and the development cycle Long, can not ensure that the blades will be delivered on time

Method used

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  • A gating system for preventing ceramic core fracture
  • A gating system for preventing ceramic core fracture
  • A gating system for preventing ceramic core fracture

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Embodiment Construction

[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0024] like Figure 3 to Figure 5 As shown, a gating system for preventing ceramic core fracture according to the present invention includes a sprue cup 1 and a transverse runner 2 communicating with the bottom end of the sprue cup 1, and the two ends of the transverse runner 2 are respectively A longitudinal runner 3 is connected to it, and several sprues 4 are connected to the longitudinal runner 3, and an inrunner A5 and an inrunner B6 are respectively connected to the sprue 4, and the inrunner A5 It communicates with the inrunner B6 through several blade wax pieces 7, one end of the inrunner A5 and the inrunner B6 is perpendicular to the sprue 4, and the other end is parallel to the blade end surface A9 and the blade end surface B10.

[0025] The transverse runner 2 is located in t...

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Abstract

The invention discloses a casting system protecting ceramic cores against breakage. The casting system comprises a sprue cup and a horizontal runner communicated with the bottom end of the sprue cup. The two ends of the horizontal runner are communicated with longitudinal runners respectively. The longitudinal runners are communicated with a plurality of sprues. The sprues are communicated with an ingate A and an ingate B respectively. The ingate A and the ingate B are communicated through a plurality of blade wax pieces. One end of the ingate A and one end of the ingate B are perpendicular to the sprues. The other end of the ingate A and the other end of the ingate B are parallel to a blade end face A and a blade end face B. The horizontal runner is located in the middles of the two longitudinal runners in the length direction of the two longitudinal runners. The horizontal runner is horizontally placed under the sprue cup. The number of the sprues on the left is five, and the number of the sprues on the right is five. The sprues are perpendicularly communicated with the longitudinal runners and are parallel to one another. By adopting the casting system, the breakage rejection rate of the blade ceramic cores is reduced, the qualified rate of blades is substantially increased, economic losses are reduced, and the development cycle is shortened.

Description

technical field [0001] The invention relates to a gating system for preventing ceramic cores from breaking, and belongs to the technical field of investment precision casting. Background technique [0002] like figure 1 , figure 2 As shown, in the production process of a certain blade, a combined injection gating system combining bottom injection and top injection is adopted, and three wax pieces are combined in each group. The gating system consists of a sprue cup, a sprue, an upper runner, a lower runner and an inner runner. When pouring, the molten metal first passes through the sprue cup, then passes through the sprue, the lower runner, the upper runner and the blades, and finally converges quickly at the ceramic core. The molten metal of this combined scheme produces a great impact force on the ceramic core when punching, and the ceramic core is very easy to break. When the blade castings after pouring are inspected by X-ray perspective, the scrap rate of ceramic c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/08B22C9/04
Inventor 马启伟吴建颢臧川姚刚袁中华贺文燮刘芳琴杨治力刘波李旭斌
Owner GUIYANG AVIC POWER PRECISION CASTING
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