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Method for manufacturing high-tenacity automobile hardware

A manufacturing method and hardware technology, applied in the field of auto parts manufacturing, can solve the problems of general hardware quality, poor environmental adaptability, poor machinability, etc., to achieve safe and reliable galvanizing operation, prolong service life, and improve adhesion strong effect

Inactive Publication Date: 2015-11-18
昆山—邦泰汽车零部件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many manufacturing methods for automobile hardware, but the hardware prepared by the current manufacturing method is generally of average quality, easy to rust, poor environmental adaptability, and short service life; undesulfurization treatment leads to high brittleness, easy fracture, and potential safety hazards; Even, the coating is easy to fall off, poor wear resistance and other problems
In addition, the hardware produced by the current technology generally has the problems of poor toughness and poor machinability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for manufacturing high-toughness automotive hardware, comprising the following steps:

[0035] S01, casting mold: casting sand mold according to the shape of hardware;

[0036] S02, preparing the blank: pour the metal into a sand mold for casting after melting, and after the casting is completed, cool down to room temperature, and take out the blank;

[0037] S03, processing and forming: the blank is processed and formed by turning and / or milling;

[0038] S04, galvanized;

[0039] S05, chromate passivation;

[0040] S06, nickel plating;

[0041] S07, nitriding: put the nickel-plated hardware into the parts heat treatment furnace for nitriding treatment, the nitriding temperature is 700 ℃, the nitriding time is 20h, the nitriding agent is ammonia gas, and after nitriding is completed, it diffuses for 3h, After the diffusion is completed, it is sent to the quenching liquid;

[0042] S08, cleaning and polishing: the quenched parts are cleaned, dried, polishe...

Embodiment 2

[0061] A method for manufacturing high-toughness automotive hardware, comprising the following steps:

[0062] S01, casting mold: casting sand mold according to the shape of hardware;

[0063] S02, preparing the blank: pour the metal into a sand mold for casting after melting, and after the casting is completed, cool down to room temperature, and take out the blank;

[0064] S03, processing and forming: the blank is processed and formed by turning and / or milling;

[0065] S04, galvanized;

[0066] S05, chromate passivation;

[0067] S06, nickel plating;

[0068] S07, nitriding: put the nickel-plated hardware into the parts heat treatment furnace for nitriding treatment, the nitriding temperature is 800 ℃, the nitriding time is 40 hours, the nitriding agent is ammonia gas, and the nitriding is completed for 4 hours. After the diffusion is completed, it is sent to the quenching liquid;

[0069] S08, cleaning and polishing: the quenched parts are cleaned, dried, polished and...

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PUM

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Abstract

The invention discloses a method for manufacturing high-tenacity automobile hardware. The method is characterized by including the following steps of S01, casting a mould, S02, manufacturing a blank, S03, conducting machining and forming, S04, conducting galvanizing, S05, conducting chromate passivating, S06, conducting nickel plating, S07, conducting nitriding, wherein the hardware generated after nickel plating is conducted is placed into a part heat treatment furnace to be subjected to nitriding processing, the nitriding temperature ranges from 700 DEG C to 800 DEG C, the nitriding time ranges from 20 hours to 40 hours, ammonia gas serves as a nitriding agent, diffusion is conducted for 3 hours to 4 hours after nitriding is completed, and a product is sent to quenching liquid after diffusion is completed, S08, conducting cleaning and polishing, wherein parts generated after quenching treatment is conducted are cleaned and dried, and deburring is conducted after polishing is conducted and S09 conducting inspecting. According to the method for manufacturing the high-tenacity automobile hardware, the hardware is good in machinable property, good in tenacity and suitable for being widely applied and popularized.

Description

technical field [0001] The invention relates to a high-toughness automobile hardware manufacturing method, which belongs to the technical field of automobile parts manufacturing. Background technique [0002] There are many manufacturing methods for automobile hardware, but the hardware prepared by the current manufacturing method is generally of average quality, easy to rust, poor environmental adaptability, and short service life; undesulfurization treatment leads to high brittleness, easy fracture, and potential safety hazards; Even, the coating is easy to fall off, and the wear resistance is poor. In addition, the hardware produced by the current technology generally has the problems of poor toughness and poor machinability. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for manufacturing automobile hardware with high toughness and good machinability; further, the present invention provides a high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36C23C8/26C23F17/00
Inventor 郑坚雄
Owner 昆山—邦泰汽车零部件制造有限公司
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