Hot-rolled wheel and manufacturing method

A manufacturing method and wheel technology, which is applied to wheels, wheels characterized by rail running parts, vehicle parts, etc., can solve the problems of large processing volume, coarse internal structure, and slag inclusion of wheels

Inactive Publication Date: 2015-08-05
CHANGZHOU TIANJUN ELECTROMECHANICAL MFGCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, wheels used in low-speed light rail transportation or transportation and lifting and transportation machinery industries, when the diameter is greater than 350mm, are mostly manufactured in the form of casting or forging. Wheels produced by casting generally have rough internal structures and often have shrinkage. Casting defects such as air holes, slag inclusions, rough casting appearance, and some processes are difficult to accurately control, resulting in unst

Method used

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  • Hot-rolled wheel and manufacturing method
  • Hot-rolled wheel and manufacturing method
  • Hot-rolled wheel and manufacturing method

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Embodiment Construction

[0021] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

[0022] see figure 1 As shown, a hot-rolled wheel includes a hub 10-1, a spoke 10-2 and a tread 10-3, the spoke 10-2 and the tread 10-3 are integral structures, and the hub 10-1 and the spoke 10- 2 are welded together.

[0023] A method for manufacturing the above-mentioned hot-rolled wheel, which sequentially includes a blank 10→rough machining→heat treatment→finishing forming, the blank 10 includes a hub 10-1, a spoke 10-2 and a tread 10-3, and the spoke 10 -2 and the tread surface 10-3 are integral structures, and the hub 10-1 and the spokes 10-2 are welded as a whole. Manufactured using the following process:

[0024] ① Cutting: Select a steel plate with the same thickness as the spoke 10-2, and cut the center hub hole and the ring-shaped sheet blank with the outer circle according to the size of the blank drawing that meets the techn...

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Abstract

The invention relates to a hot-rolled wheel and a manufacturing method. The hot-rolled wheel comprises a hub, a spoke and a tread, wherein the spoke and the tread are formed to an integrated structure; and the hub and the spoke are welded as a whole. The manufacturing method comprises the steps of blank-rough machining-heat treatment-fine machining molding in sequence; and the blank is manufactured by the following procedures: (1) blanking: a steel plate having the same thickness with the spoke is selected to cut a center hub hole and a plate blank with annular outer circle; and a seamless steel pipe or a forging pipe having the same outer diameter with the hub is selected to cut a hub rough-machined part; (2) the annular plate blank is put on a special wheel hot rolling mill for hot spinning to mold a blank semi-finished part; and (3) the hub rough-machined part is welded in a center hub hole of the blank semi-finished part to form a blank finished part. The hot-rolled wheel, manufactured by the method, prevents the defects of cast blanks and forged blanks, saves the time, the labor and the materials in subsequent processing, and largely reduces the production cost.

Description

technical field [0001] The invention relates to a wheel and a manufacturing method, in particular to a hot-rolled wheel and a manufacturing method used in low-speed light rail transportation or traffic, hoisting, and transportation machinery industries. Background technique [0002] At present, wheels used in low-speed light rail transportation or transportation and lifting and transportation machinery industries, when the diameter is greater than 350mm, are mostly manufactured in the form of casting or forging. Wheels produced by casting generally have rough internal structures and often have shrinkage. Casting defects such as pores, slag inclusions, rough casting appearance, and some processes are difficult to accurately control, resulting in unstable casting quality, high scrap rate, polluting the environment, and high energy consumption; wheels produced by forging and pressing are prone to cracks, and For the large-scale wheel forging used in the hoisting machinery indus...

Claims

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Application Information

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IPC IPC(8): B60B17/00B23P15/00
Inventor 范海洋郭继国梁存国
Owner CHANGZHOU TIANJUN ELECTROMECHANICAL MFGCO LTD
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