Integrated multi-way valve casting and casting process thereof

A casting process and multi-way valve technology, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of slag inclusion, bulging sand inclusion, etc., and achieve the effects of improving yield, long life and strong reliability

Active Publication Date: 2017-08-15
南通华东油压科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of bulging sand and slag inclusions on the upper plane of the casting

Method used

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  • Integrated multi-way valve casting and casting process thereof
  • Integrated multi-way valve casting and casting process thereof
  • Integrated multi-way valve casting and casting process thereof

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] In order to solve the above technical problems, the present invention provides an integral multi-way valve body casting and its casting process.

[0060] Such as figure 1 and Figure 5 As shown, a multi-way valve body casting includes a valve body 1, a valve core through hole, a main channel, a through hole, an auxiliary flow channel, a circular oil groove and a small circular oil groove 7, and the valve body is in the shape of a square , the inside...

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Abstract

The invention relates to the casting field, and particularly relates to an integrated multi-way valve casting and a casting process thereof. The integrated multi-way valve casting is characterized by comprising a valve body, wherein valve element through holes, main flow channels, through holes, auxiliary flow channels, annular oil grooves and small annular oil grooves are formed in the valve body; the auxiliary flow channels and the internal main flow channels are used for connecting the valve element through holes and the through holes; the annular oil grooves and the small annular oil grooves are formed in the valve element through holes, the through holes and the auxiliary flow channels; the openings of the through holes are located in the surfaces of the main body of the valve body, and communicate with the auxiliary flow channels of the valve body. The casting process of the integrated multi-way valve casting comprises the following steps: sand box production, shell mould die production, clay core production, clay core coating, clay core and shell mould die assembly, shaping operation, casting mould limit operation, pouring operation and casting cleaning and inspection. The integrated multi-way valve casting disclosed by the invention is high in integration level, small in spatial structure, free from the problems of sand inclusion, expansion and the like on the surface, and wide in application range.

Description

technical field [0001] The invention relates to the field of casting, in particular to an integral multi-way valve casting and its casting process. Background technique [0002] When mobile machinery, mining machinery and other devices perform operations, multiple mechanisms or multiple sets of hydraulic systems are required to work together. Therefore, the action of the hydraulic actuator requires multiple hydraulic valves to control. A multi-way valve is a combination of reversing valves that can control multiple hydraulic actuators. , The brake valve is equal to an integrated multi-functional integrated valve. The appearance of multi-way valve makes the multi-actuator hydraulic system compact in structure, simple in pipeline and small in pressure loss. [0003] The cast multi-way valve is a key component of the hydraulic control system of a large excavator. The casting of the valve body is difficult and requires high quality. During the production process, there are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/24B22C9/02B22C9/08F16K27/00
CPCF16K27/00B22C9/02B22C9/086B22C9/088B22C9/24
Inventor 丁先华范小亮朱亮
Owner 南通华东油压科技有限公司
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