Backflow line extrusion forming cutter and backflow line cold extrusion forming process

A molding process, extrusion molding technology, applied in the direction of metal material coating process, etc., can solve the problems of affecting the oil sealing performance of the oil seal, the inability to cut the grain polishing, and affecting the production quality of the oil seal, so as to improve the service life, improve the lubricating performance, The effect of improving oil sealing performance

Inactive Publication Date: 2020-09-25
陕西奉航科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The defect of this method is that it is impossible to polish the cutting lines (the reflow line is very small), and the gaps between the lines will affect th

Method used

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  • Backflow line extrusion forming cutter and backflow line cold extrusion forming process
  • Backflow line extrusion forming cutter and backflow line cold extrusion forming process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The present invention provides the following technical solutions: a reflow line extrusion molding tool and a reflow line cold extrusion molding process, including the following steps:

[0040] S1. Select material;

[0041] S2, annealing treatment;

[0042] S3, machining;

[0043] S4, phosphating and saponification treatment;

[0044] S5, cleaning;

[0045] S6, extrusion molding;

[0046] S7, tempering treatment;

[0047] The S1 process is: select the appropriate alloy material and inspect the material at the same time, so that the surface of the material has no cracks and no stains.

[0048] According to a reflow line extrusion molding tool and reflow line cold extrusion molding process according to the claims, the S2 process is: preheating the selected material, and putting the material into a vacuum intermediate frequency heating furnace for annealing after preheating;

[0049] The preheating temperature is controlled at 42°C for 17 minutes;

[0050] The temper...

Embodiment 2

[0062] The present invention provides the following technical solutions: a reflow line extrusion molding tool and a reflow line cold extrusion molding process, including the following steps:

[0063] S1. Select material;

[0064] S2, annealing treatment;

[0065] S3, machining;

[0066] S4, phosphating and saponification treatment;

[0067] S5, cleaning;

[0068] S6, extrusion molding;

[0069] S7, tempering treatment;

[0070] The S1 process is: select the appropriate alloy material and inspect the material at the same time, so that the surface of the material has no cracks and no stains.

[0071]According to a reflow line extrusion molding tool and reflow line cold extrusion molding process according to the claims, the S2 process is: preheating the selected material, and putting the material into a vacuum intermediate frequency heating furnace for annealing after preheating;

[0072] The preheating temperature is controlled at 45°C for 15 minutes;

[0073] The tempera...

Embodiment 3

[0085] The present invention provides the following technical solutions: a reflow line extrusion molding tool and a reflow line cold extrusion molding process, including the following steps:

[0086] S1. Select material;

[0087] S2, annealing treatment;

[0088] S3, machining;

[0089] S4, phosphating and saponification treatment;

[0090] S5, cleaning;

[0091] S6, extrusion molding;

[0092] S7, tempering treatment;

[0093] The S1 process is: select the appropriate alloy material and inspect the material at the same time, so that the surface of the material has no cracks and no stains.

[0094] According to a reflow line extrusion molding tool and reflow line cold extrusion molding process according to the claims, the S2 process is: preheating the selected material, and putting the material into a vacuum intermediate frequency heating furnace for annealing after preheating;

[0095] The preheating temperature is controlled at 38°C for 19 minutes;

[0096] The temper...

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PUM

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Abstract

The invention discloses a backflow line extrusion forming cutter and a backflow line cold extrusion forming process. The backflow line cold extrusion forming process comprises the following steps: material selection, annealing treatment, machining, phosphating saponification treatment, cleaning, extrusion forming and tempering treatment. Through phosphating saponification treatment on a semi-finished oil seal die, the lubricating performance of the semi-finished oil seal die can be improved, the extrusion pressure on the die can be reduced, and the service life of the die can be prolonged; thesurface of the semi-finished oil seal die can be extruded through the extrusion cutter to form a backflow line, no gap exists in the backflow line, and therefore the backflow line does not need polishing or other treatment; and the oil sealing performance of an oil seal can be improved when the oil seal is produced through the die.

Description

technical field [0001] The invention relates to the technical field of oil seal return line forming, in particular to a return line extrusion forming tool and a return line cold extrusion forming process. Background technique [0002] The oil seal is a seal that isolates the parts that need to be lubricated from the output parts in the transmission parts and prevents the lubricating oil from leaking. Generally, the inner wall of the oil seal is provided with a return line, and the formation of the return line requires a return line on the surface of the oil seal mold ; [0003] Cold extrusion is to put the metal blank in the cold extrusion die cavity, and at room temperature, apply pressure to the blank through the fixed punch on the press, so that the metal blank produces plastic deformation and the processing method of the parts is obtained. The cold extrusion process Technology is a high-precision, high-efficiency, high-quality, low-consumption advanced production proces...

Claims

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Application Information

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IPC IPC(8): B23P15/24C21D1/26C21D1/773C21D1/18C23C22/33
CPCB23P15/24C21D1/26C21D1/773C21D1/18C23C22/33
Inventor 王斌翟永昌
Owner 陕西奉航科技有限责任公司
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