Corrosion-resisting water pump for vehicle

A corrosion-resistant, vehicle-friendly technology, applied to pumps, parts of pumping devices for elastic fluids, pump components, etc., can solve problems such as poor cleanliness, easy to generate noise, rough inner wall of the pump, etc.

Inactive Publication Date: 2015-08-19
张金荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for the seal, all other components of this pump are mainly made of metal parts, which are heavy; the movement is prone to noise; The internal wall of the pump causes a large liquid resistance, poor passage, and unstable flow control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A corrosion-resistant water pump for vehicles, which includes a pump body and an impeller installed inside the pump body. The boron-based ceramic material layer, the impeller includes a titanium alloy impeller body and a boron carbide-based ceramic material layer outside the impeller body,

[0047] It is characterized in that the chemical composition of the titanium alloy impeller body is (weight): Zn: 15%, Al: 5%, Mo: 2%, Si: 1%, Co: 0.8%, Cu: 0.4%, Fe: 0.2%, Cr: 0.1%, Zr: 0.05%, La: 0.03%, Ta: 0.03%, B: 0.01%, and the balance is Ti and unavoidable impurities;

[0048] The preparation method of the titanium alloy impeller body: includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: melting temperature: 1810°C, pouring temperature: 1750°C; Heating, heating up to 1000°C, heating rate 300°C / hour, holding for 10 hours, then cooling down to 600°C, cooling rate of 100°C / hour, holding for 10 hours, then heating...

Embodiment 2

[0061] A corrosion-resistant water pump for vehicles, which includes a pump body and an impeller installed inside the pump body. The boron-based ceramic material layer, the impeller includes a titanium alloy impeller body and a boron carbide-based ceramic material layer outside the impeller body,

[0062] It is characterized in that the chemical composition of the titanium alloy impeller body is (weight): Zn: 20%, Al: 10%, Mo: 3%, Si: 2%, Co: 0.9%, Cu: 0.5%, Fe: 0.3%, Cr: 0.2%, Zr: 0.08%, La: 0.04%, Ta: 0.04%, B: 0.02%, and the balance is Ti and unavoidable impurities;

[0063] The preparation method of the titanium alloy impeller body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: the melting temperature is 1820°C, and the pouring temperature is 1760°C; Heating, heating up to 1000°C, heating rate 300°C / hour, holding for 10 hours, then cooling down to 600°C, cooling rate of 100°C / hour, holding for 10 hou...

Embodiment 3

[0076] A corrosion-resistant water pump for vehicles, which includes a pump body and an impeller installed inside the pump body. The boron-based ceramic material layer, the impeller includes a titanium alloy impeller body and a boron carbide-based ceramic material layer outside the impeller body,

[0077] It is characterized in that the chemical composition of the titanium alloy impeller body is (weight): Zn: 17%, Al: 7%, Mo: 2.5%, Si: 1.5%, Co: 0.85%, Cu: 0.45%, Fe: 0.25%, Cr: 0.15%, Zr: 0.06%, La: 0.035%, Ta: 0.035%, B: 0.015%, and the balance is Ti and unavoidable impurities;

[0078] The preparation method of the titanium alloy impeller body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: the melting temperature is 1815°C, and the pouring temperature is 1755°C; Heating, heating up to 1000°C, heating rate 300°C / hour, holding for 10 hours, then cooling down to 600°C, cooling rate of 100°C / hour, holding ...

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Abstract

A corrosion-resisting water pump for a vehicle comprises a pump body and an impeller arranged in the pump body. The pump body comprises an aluminum alloy pump main body, a silicon nitride series ceramic material layer on the outer surface of the pump main body and a boron oxide series ceramic material layer located on the inner surface of the pump main body. The impeller comprises a titanium alloy impeller body and a boron carbide series ceramic material layer outside the impeller body. A surface processing process including acid pickling and passivating is conducted on titanium alloy and aluminum alloy ingredients, any surface black spot is avoided, and a clean surface is obtained. The surface of the titanium alloy and the surface of the aluminum alloy are coated with the ceramic materials, and the corrosion resistance, wear resistance and high temperature resistance of the corrosion-resisting water pump are improved.

Description

technical field [0001] The invention relates to a corrosion-resistant water pump for vehicles and belongs to the technical field of vehicle machinery. Background technique [0002] Automobile water pump is an important part of automobile, it is based on traditional vane pump technology. Except for the seals, all other components of this pump are mainly made of metal parts, which are heavy; the movement is prone to noise; the surface is easy to corrode; the processing technology is complicated, and the multiple positioning makes the geometric shape accuracy low, poor cleanliness, and rough The internal wall of the pump causes large liquid resistance, poor passage, and unstable flow control. Contents of the invention [0003] The present invention proposes a kind of anti-corrosion, wear-resisting, high-temperature-resistant, anti-scaling, low-cost, high-cleanliness vehicle water pump aimed at the problems mentioned above: [0004] A corrosion-resistant water pump for vehic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/02F04D29/18C22C14/00C23C22/34C23G1/10C23C24/08C23C28/04
CPCF04D29/026C23C22/34C23C24/082C23C28/04C23G1/106F04D29/18
Inventor 张金荣
Owner 张金荣
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