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Fluid pressure device and manufacturing method for fluid pressure device

A technology for hydraulic devices and manufacturing methods, which is applied in the field of hydraulic devices, can solve problems such as difficult welding operations, and achieve the effects of less fluid retention, high durability, and improved air-tightness and liquid-tightness

Active Publication Date: 2009-06-10
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case where the pipe joint 106 formed by a short coupler is welded to the valve body 102, problems arise because the connector of the pipe joint 106 is too close to the valve body 102, so that this Welding operations are difficult to achieve

Method used

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  • Fluid pressure device and manufacturing method for fluid pressure device
  • Fluid pressure device and manufacturing method for fluid pressure device
  • Fluid pressure device and manufacturing method for fluid pressure device

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Embodiment Construction

[0021] The following describes specific descriptions about embodiments of the present invention with reference to the accompanying drawings. figure 1 is a vertical cross-sectional view of the hydraulic fluid device 10, and figure 2 is displayed figure 1 Vertical cross-sectional view of the hydraulic unit shown with the valve open.

[0022] Such as figure 1 with 2 As shown, hydraulic unit 10 is equipped with valve body 12 , housing 14 , cover 16 and valve mechanism 18 . The valve mechanism 18 includes a piston 20 , a valve plug 22 threadedly engaged with the piston 20 , and an annular body 24 for guiding a portion of the valve plug 20 .

[0023] Valve body 12 includes an inlet 26 through which pressurized fluid is introduced from an unillustrated pressurized fluid supply source, an outlet 28 through which pressurized fluid is discharged, and a communication passage 30 providing communication between inlet 26 and outlet 28 . The valve plug 22 is seated on a valve seat 3...

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PUM

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Abstract

A manufacturing method for a fluid pressure device 10 and a fluid pressure device 10 are provided, in which joints 38a, 38b are diffusion bonded to a valve body 12. In the fluid pressure device 10, the joints 38a, 38b are inserted into an inlet port 26 and an outlet port 28 formed in the valve body 12, and heating is performed to generate a temperature difference between the valve body 12 and the joints 38a, 38b, whereupon by diffusion bonding of the joints 38a, 38b into a wall of the valve body 12 in which the inlet port 26 and the outlet port 28 are formed, both members are bonded.

Description

technical field [0001] The present invention relates to a hydraulic device in which a joint is joined to a port of a valve body and a method of manufacturing the hydraulic device. More specifically, the present invention relates to a hydraulic device in which a joint is diffusion bonded to a valve body and a method of manufacturing the same. Background technique [0002] Heretofore, for example, as a hydraulic device, it is known that a pipe joint includes a socket and a coupler that can be attached and detached from each other. In this pipe joint, a socket and a connector are provided coaxially, whereby a fluid passage through which pressure fluid flows is formed inside them, and a valve plug is displaceably provided on the socket in an axial direction within the fluid passage. . Further, a spring is provided in the socket between the valve plug and the inner wall surface of the socket so that the valve plug is biased toward the connector side and is seated on the valve s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/00B23K20/24F15B13/00F15B13/02
CPCF16K31/1221B23K20/02F16K41/103Y10T29/49428F16K27/02F15B13/0832
Inventor 峰岸敬一吉田安德和田光司川村阳一
Owner SMC CORP