Hot forging pressing process water meter copper shell and manufacturing method thereof

Abstract

The invention relates to a hot forging pressing process water meter copper shell and a manufacturing method thereof. The manufacturing method comprises the following steps: S1, feeding a copper bar which has the diameter Pi of 60-75 MM, and weighs 1,600-1,900 g; S2, rapidly heating the copper bar obtained in the S1 through combustion heater equipment to be 700-800 DEG C; S3, putting the copper bar obtained in the S2 in stamping equipment to be subjected to hot forging stamping forming with a special water meter copper shell mold; S4, cutting edges of the copper shell blank obtained in the S3; S5, inspecting the edge-cut copper shell obtained in the S4 to obtain the needed hot forging pressing process water meter copper shell. The quantity of waste gas generated in the hot forging pressing process water meter copper shell blank forming process is smaller than that of waste gas generated in casting process, so that the environment protection is efficiently improved; the sealing performance of the shell wall in forging pressing of the hot forging pressing process water meter copper shell blank is improved, no small air holes are formed in the shell wall, a process of secondary infiltration for controlling the small air holes is eliminated, and the scrappage caused by the small air holes is reduced.

Description

technical field [0001] The invention relates to a water meter copper shell, in particular to a hot forging water meter copper shell and a manufacturing method thereof. Background technique [0002] At present, the water meter copper shells sold on the market are mainly cast water meter copper shells. The casting process water meter copper shell blanks generate a large amount of waste gas during casting, and the blank shell walls are prone to small pores during the casting process. Secondary impregnation after machining is required to control some of the small pores of the shell wall. The scrap amount of the blank due to small pores is less than 10%. The sealing of the shell wall of this blank and the mechanical strength of the entire shell are poor. There is a risk of fracture under high-strength collisions, and the inside and outside of the shell are not flat, and the surface is rough and does not meet the appearance requirements. After processing and forming, it will have ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a hot forging water meter copper shell and its manufacturing method, which solves the problem of small air holes in the shell wall and the hidden danger of fracture caused by insufficient shell strength in the prior art.

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