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A Vacuum Lost Foam Valve Casting Process with Inorganic Machining

A technology of vacuum lost foam and casting process, applied in manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problem of different effects, and achieve the effect of simplifying the construction process, saving site labor, and saving energy

Inactive Publication Date: 2017-11-14
AIMEITE TIANJIN FLUID CONTROL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Comparative analysis shows that there is a big difference between the above disclosed technology and the technical solution of this patent application, and the achieved effects are also different.

Method used

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  • A Vacuum Lost Foam Valve Casting Process with Inorganic Machining
  • A Vacuum Lost Foam Valve Casting Process with Inorganic Machining
  • A Vacuum Lost Foam Valve Casting Process with Inorganic Machining

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Embodiment Construction

[0027] The present invention will be further described in detail below with reference to the drawings and specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited by this.

[0028] An inorganic processing vacuum lost foam valve casting process,

[0029] For the specific structure of the valve made in this embodiment, please refer to the accompanying drawings in the specification, and it is attached for ease of description. figure 1 In the direction shown in the illustration, the upper end of the valve body 10 is sealed and fixed with a valve cover 5, and a transversely through flow channel is formed in the valve body. A gate 11 for blocking the flow channel is guided and installed in the middle of the valve body. The upper end is fixedly mounted with a valve stem 13 through the gate female 12, the valve stem extends upwards from the valve cover, and a hand wheel 1 is installed at the...

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Abstract

The invention relates to an inorganic processing vacuum lost foam valve casting process. The valve body and the valve cover are produced by the vacuum lost foam metal solid mold casting process, produced by an intermediate frequency electric furnace, and casted at one time. The invention adopts vacuum lost foam to expand polystyrene (EPS) and metal solid mold casting technology, which has the characteristics of fast dry sand molding, low labor intensity, high production efficiency, saving site labor, environmental protection and no pollution. Dissolved water in the form of cast gray iron, ductile iron, cast steel, stainless steel, cast copper and other materials, made of scrap iron, scrap steel, scrap copper and other materials, energy saving, capital investment is small, effectively saving the use furnace materials, reducing waste and increasing efficiency.

Description

Technical field [0001] The invention belongs to the field of valves, in particular to an inorganic machining vacuum lost foam valve casting process. Background technique [0002] At present, valve products such as gate valves and globe valves sold on the market are usually manufactured by sand casting, wax casting, resin sand casting, and coated sand casting processes. The processing procedures are complicated, the rejection rate is high, and the energy consumption is high. Many professional and technical personnel are required, and investment takes up a lot of funds. At present, the main parts of the gate valve are basically cast using a through-sky furnace, which causes pollution to the land, air and water sources. For many years, valve manufacturing has not jumped out of these high-energy-consuming casting methods. [0003] Moreover, in the existing process, the connection between the valve cover and the valve stem needs to be machined, and the flange connection can be used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/02F16K27/04B22C9/04
Inventor 张兆松
Owner AIMEITE TIANJIN FLUID CONTROL EQUIP CO LTD
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