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Technology for machining ball body of valve

A processing method and technology of spheres, applied to valve devices, cocks including cutting devices, engine components, etc., can solve the problems of large waste of raw materials and energy, poor working conditions, complicated processes, etc., achieve long service life and reduce production costs , The effect of process simplification

Inactive Publication Date: 2004-09-15
刘树清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This process is complex, high cost, low productivity, environmental pollution, poor working conditions, waste of raw materials and energy

Method used

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  • Technology for machining ball body of valve
  • Technology for machining ball body of valve
  • Technology for machining ball body of valve

Examples

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Embodiment Construction

[0019] In order to further understand the content, characteristics and effects of the present invention, the following embodiments are given as examples and detailed descriptions are as follows in conjunction with the accompanying drawings: Please refer to figure 1 , figure 2 The present invention adopts steel pipe 6 as the raw material for processing the valve spheroid 13, the diameter of the steel pipe 6 is 1.5-2.0 mm smaller than the diameter of the pressed spheroid 13, the length of the steel pipe 6 is calculated according to the volume of the pressed spheroid 13, and the pressure during processing is 30-75 tons. Now take the outer diameter of the pressed sphere Ф30 mm as an example, the middle hole of the sphere is Ф18 mm, the hydraulic pressure is 45 tons, the pressing speed is 15 mm / s, the outer diameter of the steel pipe 6 is Ф28.5 mm, and the length is 20.87 mm. The upper and lower molds 5 and 8 adapted to press the sphere 13 during processing are fixed on the hydrau...

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PUM

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Abstract

A ball body of valve is made of up steel pipe through cold die pressing. Its advantages include simple technology, hgih productivity, long service life and no environmental pollution.

Description

Technical field: [0001] The invention belongs to the processing method technology of valves, and in particular relates to a processing method of a valve sphere. Background technique: [0002] There are currently two known processing methods for valve spheres: [0003] 1. Ordinary casting process for producing spheres: [0004] Making sand molds→pouring→cleaning→machining→polishing [0005] The spheres produced by this process have low strength, short service life, large machining allowance, high scrap rate, large waste of raw materials and energy, and pollute the environment and poor working conditions. [0006] 2. Precision casting process for producing spheres: [0007] Making wax models → hanging sand on wax models → dewaxing → sintering sand shells → casting → machining → polishing [0008] This process is complex, high cost, low productivity, environmental pollution, poor working conditions, waste of raw materials and energy. Invention content: [0009] In order ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06
Inventor 刘树清
Owner 刘树清