IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0404539
(2003-04-02)
|
우선권정보 |
JP-0298415 (1999-10-20) |
발명자
/ 주소 |
- Miyamoto, Noritaka
- Kodama, Kouta
- Marumoto, Ikuo
|
출원인 / 주소 |
- Toyota Jidosha Kabushiki Kaisha
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
10 |
초록
▼
A thermal spraying method includes the steps of: (1) preparing a speed-increasing means for adding energy to the heated material or the heating material to increase a flying speed of the material; and (2) adding energy to the heated material or the heating material by the speed-increasing means in s
A thermal spraying method includes the steps of: (1) preparing a speed-increasing means for adding energy to the heated material or the heating material to increase a flying speed of the material; and (2) adding energy to the heated material or the heating material by the speed-increasing means in such a manner that a flying speed of the heated material or the heating material increases until the material reaches a surface of an object.
대표청구항
▼
1. A thermal spraying method for producing a thermal sprayed layer by heating material for thermal spraying, by flying the heated material or the heating material to a surface of an object, and by piling the heated material on the surface of the object, comprising the steps of:preparing a speed-incr
1. A thermal spraying method for producing a thermal sprayed layer by heating material for thermal spraying, by flying the heated material or the heating material to a surface of an object, and by piling the heated material on the surface of the object, comprising the steps of:preparing a speed-increasing means for adding energy to the heated material or the heating material to increase a flying speed of the material; andadding energy to the heated material or the heating material by the speed-increasing means in such a manner that a flying speed of the heated material or the heating material increases until the material reaches the surface of the object; wherein:the heating of the material is carried out by a first energy source capable of heating the material for thermal spraying, and the adding of the energy for increasing the flying speed of the material is carried out by a second energy source constituting the speed-increasing means for adding energy to the heated material or the heating material, the second energy source being controlled independently of the first energy source,the first energy source for heating the material is constituted by an induction heating apparatus for heating the material for thermal spraying by means of induction heating based on alternating current having a high frequency, andthe speed-increasing means increases and accelerates the fixing speed of material by a gas stream having a high speed, and the gas stream is formed of at least one selected from the group consisting of helium gas, nitrogen gas, air gas, oxygen gas, and hydrogen gas;wherein the speed-increasing means includes; a gun having a high pressure room; a gas-storing division for storing gas; a compressor connected with the gas-storing division for compressing the gas supplied from the gas-storing division; and a pressure amplifier connected with the compressor for amplifying the pressure of the gas compressed by the compressor, andwherein the amplified pressure is supplied to the high pressure room for obtaining the high pressure in the high pressure room to increase, the flying speed of the material. 2. The thermal spraying method according to claim 1, wherein the adding of the energy for increasing the flying speed of the material is carried out after the heating of the material for thermal spraying. 3. The thermal spraying method according to claim 1, wherein the adding of the energy for increasing the flying speed of the material is carried out during the heating of the material for thermal spraying. 4. The thermal spraying method according to claim wherein the first energy source and the second energy source are capable of being controlled independently and individually to adjust the heating of the material and the increasing of the flying speed of the material. 5. The thermal spraying method according to claim 1, wherein the gas stored in the gas-storing division for storing gas is at least one selected from the group consisting of helium gas, nitrogen gas, air gas, oxygen gas, and hydrogen gas. 6. The thermal spraying method according to claim 1, wherein the material for thermal spraying has conductivity and magnetic permeability. 7. The thermal spraying method according to claim 1, wherein the frequency of alternating current is set to be in a range from 5 kHz to 100 MHz. 8. The thermal spraying method according to claim 1, wherein the flying speed of the material is accelerated by the speed-increasing means, andwherein the flying speed of the material before acceleration is lower than that of the material after the acceleration for lengthening the time for heating the material for thermal spraying to a target temperature range, thereby ensuring ability for heating the material for thermal spraying. 9. The thermal spraying method according to claim 1, wherein the speed-increasing means increases the flying speed of the material by using a swelling gas pressure caused by expanding gas or by evaporating liquid. 10. The the rmal spraying method according to claim 1, wherein the material for thermal spraying has a powder particle shape whose diameter falls in a range from 1 to 500 μm. 11. The thermal spraying method according to claim 1, wherein the material for thermal spraying is formed of at least one selected from the group consisting of as cast iron, carbon steel, stainless steel, alloy steel, aluminum, aluminum alloy, copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, ceramics, and cermet.
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