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A coated sand mold for casting

A coated sand and mold technology, applied in the direction of manufacturing tools, casting equipment, casting molding equipment, etc., can solve the problems of displacement deviation, damage, product deformation, etc., to reduce the attachment area, reduce the adhesion force, enhance the firmness effect

Active Publication Date: 2021-11-23
章丘市铜铝铸造厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When using molds to produce steel castings and iron castings, in the process of casting products, the upper mold and the lower mold are generally used to close the mold to complete the shaping of the product. During the use of the existing molds, the upper mold and the lower mold Displacement deviation is easy to occur during the mold clamping process, resulting in product deformation or even damage, failing to meet the use requirements, and high product scrap rate

Method used

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  • A coated sand mold for casting
  • A coated sand mold for casting
  • A coated sand mold for casting

Examples

Experimental program
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Effect test

Embodiment approach

[0025] As a specific embodiment of the present invention, the positioning rod 231 is provided with a fastening unit 3; the fastening unit 3 includes a protrusion 31 and a No. 2 spring 32; Cavity 233, the protrusion 31 is symmetrically installed in the first cavity 233, and the relative protrusion 31 is connected by the second spring 32; the side wall of the positioning hole 121 has a semicircular card slot 122; through the fastening unit 3 and the card slot 122, to achieve a stable connection between the movable mold 1 and the fixed mold 2; when working, when the positioning rod 231 is stretched into the positioning hole 121, the protrusion 31 on the positioning rod 231 first extends into the positioning hole 121. In the slot 111, it is squeezed by the side wall of the positioning hole 121, and the protrusion 31 is squeezed into the first cavity 233. When the positioning rod 231 is fully inserted into the positioning hole 121, the protrusion 31 on the positioning rod 231 The N...

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PUM

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Abstract

The invention belongs to the technical field of coated sand molds, in particular to a coated sand mold for casting. Air outlet, and the air outlet is connected with the No. 1 mold cavity; the positioning groove is set outside the mouth of the No. 1 mold cavity, and the positioning hole is set in the positioning groove, and the fixed mold is under the movable mold; the feeding channel is set in the middle of the bottom end of the fixed mold , and the feed channel is connected with the No. 2 cavity, and the upper end of the fixed mold is provided with the No. 2 cavity and a bar block for positioning; through the cooperation between the positioning rod and the positioning hole, the gap between the movable mold and the fixed mold is realized. Accurate positioning and mold clamping, through the cooperation between the positioning rod and the oil storage cavity, the anti-sticking silicone oil in the oil storage cavity flows into the second cavity.

Description

technical field [0001] The invention belongs to the technical field of coated sand molds, in particular to a coated sand mold for casting. Background technique [0002] Coated sand, the surface of the sand particles is covered with a layer of solid resin film before molding or core sand. There are two coating processes: cold method and hot method: the cold method dissolves the resin with ethanol, and adds urotropine during the sand mixing process, so that the two are coated on the surface of the sand, and the ethanol volatilizes to obtain coated sand; Preheat the sand to a certain temperature, add resin to melt, stir to coat the resin on the surface of the sand, add urotropine aqueous solution and lubricant, cool, crush, and sieve to obtain coated sand. For steel castings and iron castings. [0003] When using molds to produce steel castings and iron castings, in the process of casting products, the upper mold and the lower mold are generally used to close the mold to comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/02B22C21/10B22C21/08B22D33/04
CPCB22C9/02B22C21/08B22C21/10B22D33/04
Inventor 张永苏桥娄王英
Owner 章丘市铜铝铸造厂