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Metal mold type gravity casting die for cast of tin bronze, and casting method

A gravity casting, metal mold technology, applied in the direction of casting mold, casting mold composition, manufacturing tools, etc., can solve the problems of tin bronze sand casting environmental pollution, low production efficiency, low and other problems, to reduce serious energy consumption and prolong service life , the effect of cleaning the working environment

Inactive Publication Date: 2007-02-21
SHANGHAI TIANSHEN COPPER GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a metal-type gravity casting mold and casting method for tin bronze castings. The tin bronze castings are produced using a metal-type gravity casting machine, which can overcome the corrosion resistance and processing of lead brass castings. The shortcomings of low performance can improve the surface finish of castings, and at the same time, it can solve the shortcomings of serious environmental pollution and low production efficiency caused by tin bronze sand casting

Method used

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  • Metal mold type gravity casting die for cast of tin bronze, and casting method
  • Metal mold type gravity casting die for cast of tin bronze, and casting method
  • Metal mold type gravity casting die for cast of tin bronze, and casting method

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Embodiment

[0037] figure 1 , Figure 2, Figure 3, Figure 4 , Figure 5 , Figure 6 It is an embodiment of a tin bronze valve body casting of the tin bronze casting gravity casting mold and casting method of the present invention. The following describes this embodiment in detail.

[0038]Metal mold 1 comprises fixed metal mold lower mold 11 and movable metal mold upper mold 12, please see Fig. 2, and Fig. 2 is the metal mold upper mold schematic diagram of the gravity casting method of tin bronze casting of the present invention. The metal mold upper mold 12 is provided with a metal mold upper mold sprue 121, two metal mold upper mold positioning sleeves 122 corresponding to the metal mold lower mold positioning pins 112, and external molding sand matching the external shape of the external sand core upper core 22. The upper core positioning groove 123 on the core, the upper core positioning groove 124 on the external sand core of the two metal molds, and the two metal molds connected...

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Abstract

A gravitationally casting metal mould set for casting the tin-bronze workpiece is composed of a metal mould consisting of upper and lower moulds, external sand core consisting of upper and lower cores and inlaid in the recess of metal mould, and internal sand core. Its casting method includes such steps as assembling the mould set, pouring molten tin-bronze, and cooling.

Description

technical field [0001] The invention relates to gravity casting, in particular to a metal mold gravity casting method for tin bronze castings. technical background [0002] At present, the faucet valve body in the plumbing and sanitary ware industry is prone to oxidation due to the humid working environment, and corrosion will occur when it is used for a long time, which will cause waste of water, oil and other resources while damaging the faucet valve body. In the prior art, the casting materials of faucet parts are mostly lead brass. This alloy is suitable for gravity casting of metal molds, but has the disadvantages of being easy to oxidize and corrode. As another type of copper alloy, tin bronze can overcome the above disadvantages of lead brass. It has the advantages of corrosion resistance and easy processing. At the same time, the cast product has the advantages of dense surface and excellent smooth performance. [0003] Compared with sand casting, metal mold gravity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/00B22D39/04
Inventor 蒋明川
Owner SHANGHAI TIANSHEN COPPER GRP CO LTD
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