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A beam casting method and casting mold with a thin-walled cylinder

A thin-walled cylinder and casting mold technology, applied in casting molding equipment, casting molds, casting mold components, etc., can solve the problems of complex external structure, simple internal cavity structure, difficult to meet quality requirements, etc., and achieve easy follow-up processing. , the modeling method is simple, the effect of high pass rate

Active Publication Date: 2017-02-08
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structure of the above-mentioned girder casting is just opposite to that of the cabin casting, with a length of about 800mm and a maximum outer diameter of about φ520mm. It is difficult to meet the quality requirements by adopting the casting gravity pouring method of cabin castings

Method used

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  • A beam casting method and casting mold with a thin-walled cylinder
  • A beam casting method and casting mold with a thin-walled cylinder
  • A beam casting method and casting mold with a thin-walled cylinder

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Embodiment

[0023] According to the structural quality requirements of the girder castings, it is determined through analysis that the girder castings are poured horizontally and share five mold boxes: bottom box 1, lower box 2, middle box 3, upper box 4 and cover box 5. The lower box 2, the middle box 3 and the upper box 4 are provided with a mandrel 6. The bottom box 1 is provided with a sprue 9, and the pressure difference pouring method is adopted, and the molten metal is injected from the sprue 9 by pressurization. The bottom box is provided with 6 transverse flow channels 7, and the 6 transverse flow channels 7 are vertically connected by a longitudinal flow channel 8, and a sprue 9 is provided at the intersection of each transverse flow channel 7 and the longitudinal flow channel 8. On the one hand, the molten metal flows into the cavity of the lower box through the inner runner 11 under the action of pressure; The slot runner 13 casts the thin-walled cylindrical body 21 part of t...

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PUM

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Abstract

The invention discloses a casting method of a girder having a thin-walled cylinder and a casting mold. A casting box consisting of fix boxes of a bottom box, a lower box, a middle box, an upper box and a cover box is adopted to cast; a core mold is transversely placed in the casting box; an inner runner, a vertical runner and a gap runner are arranged in the lower box; a pouring port is formed in the bottom box; meanwhile, transverse runners and longitudinal runners are arranged on the bottom box; pouring ports are respectively arranged in the intersections of all the transverse runners and the longitudinal runners; and molten metal is injected from the pouring port of the bottom box through a pressurization mode in casting, so that the molten metal flows into the casting cavity of the lower box through the inner runner under the pressure effect, flows to two sides through the transverse runner to enter the gap runner along with the vertical runner, and finally overflows from a riser of the upper box, so that the molten metal in the riser feeds a complex casting cavity in the top of the girder. The casting method can guarantee the internal quality of castings, is simple in molding method, is easy in subsequent treatment of the castings, can form the batch production, and is higher in pass percent.

Description

technical field [0001] The invention relates to a girder casting method with a thin-wall cylinder and a casting mold, and belongs to the technical field of girder casting with a complex shape connected with a thin-wall cylinder. Background technique [0002] In construction machinery products, a girder part with a thin-walled cylinder is often used. The girder part needs to be cast. The material is ZM5, the heat treatment state is T5, and the casting type is Class II. The girder is a cylindrical thin-walled part, and the inner cavity is a cylindrical processing surface. The outside of the part is a non-processed surface with a complex structure. The quality requirements are high, and X-ray and fluorescent flaw detection inspections are required for designated parts of castings. [0003] The structure of the above-mentioned girder casting is just opposite to that of the cabin casting, with a length of about 800 mm and a maximum outer diameter of about φ520 mm. The inner cav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/20B22C9/24
CPCB22D18/04
Inventor 陈寅敖四海于丹王昌明
Owner 贵州航天风华精密设备有限公司
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