CN101012560A - Method for reinforcing train rail and wheel surface by using alloy induction heating melting and coating technology - Google Patents
Method for reinforcing train rail and wheel surface by using alloy induction heating melting and coating technology Download PDFInfo
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- CN101012560A CN101012560A CN 200710051321 CN200710051321A CN101012560A CN 101012560 A CN101012560 A CN 101012560A CN 200710051321 CN200710051321 CN 200710051321 CN 200710051321 A CN200710051321 A CN 200710051321A CN 101012560 A CN101012560 A CN 101012560A
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Abstract
The invention discloses a reinforcing method of train rail and wheel surface through inductive heat-fused alloy coating technique, which comprises the following steps: 1. predisposing surface; 2. allocating pre-coating alloy powder; 3. coating alloy powder; 4. drying alloy powder through electric heat yarn; 5. fusing; forming a layer of hard abrasion-proof alloy on the rail and wheel surface.
Description
Technical field
The present invention relates to a kind ofly be coated with alloy technology reinforcing train rail and wheel surface method with induction heating melting.
Background technology
Present train rail is to adopt steel such as U71Mn, U75V to make through thermal treatment process, in use easy to wear, and a little less than the antiseptic power, work-ing life is short, train wheel adopts high carbon steel, with si, Mn is principal element, shelled tread in use appears easily, problems such as tread wearing and tearing, for high speed train wheel, be principal mode with the shelled tread, be because braking high temperature makes material phase transformation, form the white layer of Ma Daiti in the process of cooling subsequently, chipping and come off under the effect of wheel Rail Contact Stresses, thermal stresses and structural stress.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be coated with alloy technology reinforcing train rail and wheel surface method, at existing rail with wheel surface is molten is coated with one deck wear-resisting alloy steel, body material is not contacted mutually, improve rail wear resistance and work-ing life with induction heating melting.
The present invention is achieved like this, and its processing step is as follows:
1, surface preparation: a, workpiece (train rail, wheel) put into the ultrasonic wave oil removing worker groove that degreaser is housed, under action of ultrasonic waves oil removing 5-10 minute, the degreaser prescription was: industrial sodium hydroxide 12g/L, industry trisodium phosphate 7g/L, industrial sodium carbonate 8g/L; B, workpiece is taken out residual degreaser on clear Xian's workpiece, oven dry workpiece from degreasing tank; C, sandblasting:, in 1 hour, enter next procedure after the sandblasting to pre-reinforcement face sandblast;
2, preparation precoating powdered alloy: in the container of at first alloy powder being packed into, slowly add caking agent, just soaked into alloy until caking agent, then pat the alloy powder surface gently with bat, have this moment sticking, connect agent and leach, the caking agent that leaches is taken out, patted several times repeatedly till caking agent can not leach, caking agent is made up of water glass and a small amount of honey;
3, coating powdered alloy: as follows to pre-reinforcement face self-fluxing alloyed powder: a, the rail coating powdered alloy method of colding pressing: to the tread (strengthening face in advance) of rail by hand or the powder spreading device precoating layer prepare the powdered alloy of caking agent, re-use the tetrafluoroethylene roller with powdered alloy roll-in (roll surface is pressed the good profile of tread profile car), unnecessary powdered alloy is removed in the tank, in order to reach homogeneous thickness, need roll-in repeatedly, and add powdered alloy by hand at few powder place; B, train wheel coating powdered alloy method: do the same size of what a and wheel, the roller that cooperates with the wheel tread negative and positive with the PP plastics; Kun is slowly run, the relative gap that keeps needs of roller, the necessary uniform rotation of roller and wheel with wheel tread with wheel is incorgruous; Use the distributor uniform distribution on the top, a tank is put in the below in mechanism, so that unnecessary powder is reclaimed;
4, with nichrome wire powdered alloy is dried, remove moisture content;
5, induction fusing: select high frequency, intermediate frequency and audio frequency for use by the thickness of alloy, the thickness that they can melt be high frequency less than intermediate frequency, intermediate frequency is less than audio frequency, the power high frequency that needs is less than intermediate frequency, intermediate frequency is less than audio frequency; Induction coil adopts the double loop induction coil, is bonded on the inductor block with high-level efficiency magnetic conduction powder.At the uniform velocity mobile with the step motor control workpiece, by induction coil, for preventing the side alloy flow, working parts strap magnetic fusion (promptly using suction worktable or electro-magnet) through the induction heating fusion, forms the firm attrition resistant alloy of one deck at rail and wheel surface.
Advantage of the present invention is: (1) has therefore fundamentally solved the workpiece material problem because present technique is at the molten one deck self-melting alloy that is coated with of workpiece surface, and body material is not contacted mutually; (2) select suitable self-fluxing alloyed powder can well solve the friction and the problem of friction pair between train rail and the train wheel, make the friction of train rail and wheel reach minimum, can also solve the friction problem between wheel and the brake facing elsewhere; (3) the self-melting alloy layer also have very low porosity, so it has very strong antiseptic power to be difficult for getting rusty except high-strength, high-anti-friction is arranged; (4) technology advanced person shows the following aspects: a, cost are low, than surfacing, laser moltenly be coated with, the cost of technology such as flame plating is all much lower; B, strong with basal body binding force is metallurgical binding; C, production process environmental protection, no waste gas, waste water, waste residue; D, can realize extensive, automatic production, stable processing technique; E, wear resistance and antiseptic power are strong; F, production rate are very fast.
Embodiment
Manufacturing process steps of the present invention is as follows:
1, surface preparation: a, workpiece (train rail, wheel) put into the ultrasonic wave oil removing worker groove that degreaser is housed, under action of ultrasonic waves oil removing 5-10 minute, the degreaser prescription was: industrial sodium hydroxide 12g/L, industry trisodium phosphate 7g/L, industrial sodium carbonate 8g/L; B, workpiece is taken out residual degreaser on clear Xian's workpiece, oven dry workpiece from degreasing tank; C, sandblasting:, in 1 hour, enter next procedure after the sandblasting to pre-reinforcement face sandblast;
2, preparation precoating powdered alloy: in the container of at first alloy powder being packed into, slowly add caking agent, just soaked into alloy until caking agent, then pat the alloy powder surface gently with bat, have this moment sticking, connect agent and leach, the caking agent that leaches is taken out, patted several times repeatedly till caking agent can not leach, caking agent is made up of water glass and a small amount of honey;
3, coating powdered alloy: as follows to pre-reinforcement face self-fluxing alloyed powder: a, the rail coating powdered alloy method of colding pressing: to the tread (strengthening face in advance) of rail by hand or the powder spreading device precoating layer prepare the powdered alloy of caking agent, re-use the tetrafluoroethylene roller with powdered alloy roll-in (roll surface is pressed the good profile of tread profile car), unnecessary powdered alloy is removed in the tank, in order to reach homogeneous thickness, need roll-in repeatedly, and add powdered alloy by hand at few powder place; B, train wheel coating powdered alloy method: do the same size of what a and wheel, the roller that cooperates with the wheel tread negative and positive with the PP plastics; Kun is slowly run, the relative gap that keeps needs of roller, the necessary uniform rotation of roller and wheel with wheel tread with wheel is incorgruous; Use the distributor uniform distribution on the top, a tank is put in the below in mechanism, so that unnecessary powder is reclaimed;
4, with nichrome wire powdered alloy is dried, remove moisture content;
5, induction fusing: select high frequency, intermediate frequency and audio frequency for use by the thickness of alloy, the thickness that they can melt be high frequency less than intermediate frequency, intermediate frequency is less than audio frequency, the power high frequency that needs is less than intermediate frequency, intermediate frequency is less than audio frequency; Induction coil adopts the double loop induction coil, is bonded on the inductor block with high-level efficiency magnetic conduction powder.At the uniform velocity mobile with the step motor control workpiece, by induction coil, for preventing the side alloy flow, working parts strap magnetic fusion (promptly using suction worktable or electro-magnet) through the induction heating fusion, forms the firm attrition resistant alloy of one deck at rail and wheel surface.
Claims (1)
1, a kind ofly be coated with alloy technology reinforcing train rail and wheel surface method, it is characterized in that processing step is as follows with induction heating melting:
(1) surface preparation: a, workpiece is put into the ultrasonic wave oil removing worker groove that degreaser is housed, under action of ultrasonic waves oil removing 5-10 minute, the degreaser prescription was: industrial sodium hydroxide 12g/L, industry trisodium phosphate 7g/L, industrial sodium carbonate 8g/L; B, workpiece is taken out residual degreaser on clear Xian's workpiece, oven dry workpiece from degreasing tank; C, sandblasting:, in 1 hour, enter next procedure after the sandblasting to pre-reinforcement face sandblast;
(2) preparation precoating powdered alloy: in the container of at first alloy powder being packed into, slowly add caking agent, just soaked into alloy until caking agent, then pat the alloy powder surface gently with bat, have this moment sticking, connect agent and leach, the caking agent that leaches is taken out, patted several times repeatedly till caking agent can not leach, caking agent is made up of water glass and a small amount of honey;
(3) coating powdered alloy: as follows to pre-reinforcement face self-fluxing alloyed powder: a, the rail coating powdered alloy method of colding pressing: to the pre-reinforcement face of rail by hand or the powder spreading device precoating layer prepare the powdered alloy of caking agent, re-use the tetrafluoroethylene roller with the powdered alloy roll-in, unnecessary powdered alloy is removed in the tank, roll-in repeatedly, and add powdered alloy by hand at few powder place; B, train wheel coating powdered alloy method: do the same size of what a and wheel with the PP plastics, the roller that cooperates with the wheel tread negative and positive, make Kun slowly run the relative gap that keeps needs of roller, roller and wheel uniform rotation with wheel tread with wheel is incorgruous; Use the distributor uniform distribution on the top, a tank is put in the below in mechanism, so that unnecessary powder is reclaimed;
(4) with nichrome wire powdered alloy is dried, remove moisture content;
(5) induction fusing: select high frequency, intermediate frequency and audio frequency for use by the thickness of alloy, induction coil adopts the double loop induction coil, at the uniform velocity mobile with the step motor control workpiece, pass through induction coil, for preventing the side alloy flow, the fusion of working parts strap magnetic through the induction heating fusion, forms the firm attrition resistant alloy of one deck at rail and wheel surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710051321 CN101012560A (en) | 2007-01-17 | 2007-01-17 | Method for reinforcing train rail and wheel surface by using alloy induction heating melting and coating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710051321 CN101012560A (en) | 2007-01-17 | 2007-01-17 | Method for reinforcing train rail and wheel surface by using alloy induction heating melting and coating technology |
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| CN101012560A true CN101012560A (en) | 2007-08-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146563A (en) * | 2011-03-08 | 2011-08-10 | 张昆 | Production process for intelligent temperature adjusting steel rail with laser cladding layer and heat insulation coating |
| CN102560476A (en) * | 2011-12-31 | 2012-07-11 | 席生岐 | Induction heating sintering method of metal pipe inner wall coating |
| CN109158281A (en) * | 2018-09-21 | 2019-01-08 | 武汉钢铁有限公司 | The construction system and method for the anti-stray electrical current coating of rail |
| CN112853345A (en) * | 2021-01-06 | 2021-05-28 | 北京工业大学 | Laser preparation method of material for improving strength of steel rail welding seam |
| CN117535664A (en) * | 2023-12-01 | 2024-02-09 | 河北钨泰固机械设备有限公司 | Double-frequency induction heating composite laser cladding method and equipment thereof |
-
2007
- 2007-01-17 CN CN 200710051321 patent/CN101012560A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146563A (en) * | 2011-03-08 | 2011-08-10 | 张昆 | Production process for intelligent temperature adjusting steel rail with laser cladding layer and heat insulation coating |
| CN102146563B (en) * | 2011-03-08 | 2013-01-30 | 张昆 | Production process for intelligent temperature adjusting steel rail with laser cladding layer and heat insulation coating |
| CN102560476A (en) * | 2011-12-31 | 2012-07-11 | 席生岐 | Induction heating sintering method of metal pipe inner wall coating |
| CN109158281A (en) * | 2018-09-21 | 2019-01-08 | 武汉钢铁有限公司 | The construction system and method for the anti-stray electrical current coating of rail |
| CN112853345A (en) * | 2021-01-06 | 2021-05-28 | 北京工业大学 | Laser preparation method of material for improving strength of steel rail welding seam |
| CN112853345B (en) * | 2021-01-06 | 2022-06-24 | 北京工业大学 | Laser preparation method of material for improving strength of steel rail welding seam |
| CN117535664A (en) * | 2023-12-01 | 2024-02-09 | 河北钨泰固机械设备有限公司 | Double-frequency induction heating composite laser cladding method and equipment thereof |
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Open date: 20070808 |