CN101942633A - Glow ion oxynitriding abrasion resisting technique for coal machine assembly - Google Patents
Glow ion oxynitriding abrasion resisting technique for coal machine assembly Download PDFInfo
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- CN101942633A CN101942633A CN 201010287656 CN201010287656A CN101942633A CN 101942633 A CN101942633 A CN 101942633A CN 201010287656 CN201010287656 CN 201010287656 CN 201010287656 A CN201010287656 A CN 201010287656A CN 101942633 A CN101942633 A CN 101942633A
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- oxynitriding
- furnace body
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Abstract
The invention relates to a glow ion oxynitriding abrasion resisting technique for a coal machine assembly, which comprises the following steps: blanking, rough turning, heat treating, semi-finishing, finishing and surface oxynitriding. The invention is characterized in that the surface oxynitriding technique is a glow ion oxynitriding technique and comprises the following steps: inspecting a furnace body, putting the assembly into the furnace, vacuumizing, starting heating, hard-nitridizing, oxynitriding, closing the device, taking out the assembly, and sealing the hole. The technique has the advantages of simple operation, low cost and no environment pollution, and can ensure the human health. The coal machine assembly, of which the surface is treated by the technique, has the advantages of no void or loosening, high compactness and uniformity, no internal stress and favorable abrasion resistance.
Description
Technical field
The present invention relates to a kind of oxynitriding erosion resistant technology of surface of the work, particularly a kind of glow ion oxynitriding erosion resistant technology of coal thermomechanical components is applied to handle the colliery thermomechanical components and the various outside surface oxynitriding erosion resistant that works in assembly under the seriously corroded working condition is handled.
Background technology
At present, the anticorrosion process of colliery thermomechanical components almost all adopts the bottoming of gunmetal or milky white chromium, chromed hardened more traditional electroplating technology.This electroplating technology is aspect environmental pollution: owing to electroplate all raw materials all is Chemicals, and people's health is caused very big injury, and exhaust gas discharged and waste water environmental pollution are serious simultaneously; On production cost: because operation is loaded down with trivial details, galvanized production cost is very high; Aspect erosion resistant: the assembly of handling through traditional electroplating technology, nearly about 10% ratio is in use owing to the bonding strength of pitting, line erosion and electrolytic coating that electroplating technology caused causes inefficacy inadequately, the hardness of these failed component is between HB240～280, use the copper sulfate drop, black patches after 35-45 minute, promptly occurs.
Summary of the invention
The objective of the invention is: the glow ion oxynitriding erosion resistant technology that designs a kind of coal thermomechanical components, this technological operation is simple, with low cost, environmentally safe, secure to person health, and through the surperficial excessively coal thermomechanical components tight of this art breading, loose, evenly fine and close, internal stress free, wear-corrosion resistance is good, in order to overcome the deficiencies in the prior art.
Purpose of the present invention can realize by following technical proposals:
A kind of glow ion oxynitriding erosion resistant technology of coal thermomechanical components, comprise that blanking → rough turn → thermal treatment → semi-finishing → precision work survives → surperficial oxynitriding, it is characterized in that: surperficial oxynitriding technology wherein is glow ion oxynitriding technology, and its processing step is:
(1) check body of heater: whether the anode of monitoring device and worktable have dirt before the vacuum furnace body blow-on, and cleaning in time;
(2) assembly is gone into stove: at first, and the preceding dirt of shove charge with gasoline or diesel oil cleaning coal thermomechanical components surface, and check assembly surface, guarantee that its surface does not have crackle, sand holes, burr, butter and paint; Secondly, avoid during shove charge tying up assembly with galvanized wire, cause that to prevent zinc evaporation after stain vacuum furnace body to beat arc for a long time more than, the shove charge assembly is during as the needs frock, the weld of frock must be cleaned out welding agent in case beat arc, and the smooth striking in case produce the slit is wanted in the junction alive of frock; Once more, the coal thermomechanical components is packed in the vacuum furnace body, and make its well-balanced layout in stove, the gap≤15mm between the assembly, and the component height in the stove that guarantees to pack into or length are within effective heating zone of vacuum furnace body;
(3) vacuumize: after installing assembly and shutting the vacuum furnace body headkerchief, unlatching vacuumizes and the vacuum pump of Controlling System vacuumizes vacuum furnace body, pumpdown time≤45min, after being evacuated to final vacuum 13.3Pa, close and vacuumize and the vacuum pump and the butterfly valve of Controlling System, whether the vacuum voltage rise rate of checking vacuum furnace body is in＜0.1Pa/min scope, if the stopping property of the explanation vacuum furnace body that meets the requirements is good, at this moment open vacuum pump again and vacuumize, guarantee that furnace pressure is 110Pa;
(4) starter heating: the at first intravital aura pulse power heating of starter vacuum oven, the control mode of the aura pulse power is a fixed frequency modulated PWM, its power＜50KW, its dutycycle is 0.3; Open the thermal source button of the intravital three groups of accessory power supply of vacuum oven then, and open its potentiometer knob progressively to strengthening intensification, the power of three groups of accessory power supply is 50～90KW; Feed water coolant to vacuum furnace body simultaneously;
(5) hard nitrogenize: the intravital temperature of vacuum oven is risen to 510～520 ℃, feed NH at 510～520 ℃
3Gas, 19 hours time;
(6) oxynitriding: the intravital temperature to 485 of reduction vacuum oven～495 ℃ feeds NH at 485～495 ℃
3And O
2Mixed gas, its NH
3And O
2Blending ratio be 1:0.01～0.05,6 hours time;
(7) pass equipment: after reducing the intravital temperature to 400 of vacuum oven ℃, close the aura pulse power and three groups of accessory power supply of vacuum furnace body, and stop to feed NH
3And O
2Mixed gas; When treating that the intravital temperature of vacuum oven reduces by 80～120 ℃, close and vacuumize and the butterfly valve and the vacuum pump of Controlling System, stop in stove, to feed water coolant simultaneously;
(8) take out assembly: open the stopping valve of vacuum furnace body, the vacuum furnace body inner chamber places atmosphere, opens the body of heater headkerchief after treating in the stove to become malleation by negative pressure, and takes out the coal thermomechanical components;
(9) sealing of hole: treat the coal thermomechanical components naturally cool to≤during 50 ℃ temperature, assembly surface brush or soak hang hole sealing agent after natural air drying, natural air drying time≤30 minute.
Vacuum furnace body of the present invention is an electricimpulse formula ion-oxygen nitriding furnace.
The material on coal thermomechanical components of the present invention surface is the 27SiMn steel, the height of assembly or length≤50mm.
The present invention is in described step 9, and described hole sealing agent is silicone resin (SiG).
Advantage of the present invention is: 1) on the technology: introduce many thermals source samming oxygenation PECAD technology on the basis of pulse ion nitrogenize, select program electricimpulse formula ion-oxygen nitriding furnace for use, the colliery thermomechanical components is carried out erosion resistant handle; Ion nitriding is to carry out in a vacuum, thereby can obtain the finished surface of non-oxidation, also can not damage the surface smoothness of processed workpiece; And owing to be to handle at low temperatures, the deflection of processed workpiece is minimum; 2) aspect erosion resistant: through the coal thermomechanical components of glow ion oxynitriding erosion resistant art breading, its hardness 〉=500HV, nitriding depth 〉=0.3mm, and the PECAD layer is connected with basal body interface well, tight, loose, and evenly fine and close, internal stress free; Use the copper sulfate drop, just occurred black patches at 70 minutes; Wear resistance and good corrosion resistance through the workpiece of ionitriding; 3) on production cost: owing to saved thermal treatment process, reduced treatment process, saved starting material machining cost, improved production efficiency, and chosen NH
3And O
2As oozing paint, this oozes paint and obtains easy, safe in utilization, cheap, energy-conserving and environment-protective, therefore, has also reduced production cost.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
A kind of glow ion oxynitriding erosion resistant technology of coal thermomechanical components, comprise that blanking → rough turn → thermal treatment → semi-finishing → precision work survives → surperficial oxynitriding, it is characterized in that: surperficial oxynitriding technology wherein is glow ion oxynitriding technology, and its processing step is:
(1) check body of heater: whether the anode of monitoring device and worktable have dirt before the vacuum furnace body blow-on, and cleaning in time;
(2) assembly is gone into stove: at first, and the preceding dirt of shove charge with gasoline or diesel oil cleaning coal thermomechanical components surface, and check assembly surface, guarantee that its surface does not have crackle, sand holes, burr, butter and paint; Secondly, avoid during shove charge tying up assembly with galvanized wire, cause that to prevent zinc evaporation after stain vacuum furnace body to beat arc for a long time more than, the shove charge assembly is during as the needs frock, the weld of frock must be cleaned out welding agent in case beat arc, and the smooth striking in case produce the slit is wanted in the junction alive of frock; Once more, the coal thermomechanical components is packed in the vacuum furnace body, and make its well-balanced layout in stove, the gap≤15mm between the assembly, and the component height in the stove that guarantees to pack into or length are within effective heating zone of vacuum furnace body;
(3) vacuumize: after installing assembly and shutting the vacuum furnace body headkerchief, the unlatching model is that the vacuum pump of vacuumizing of 2X-30 and Controlling System vacuumizes vacuum furnace body, pumpdown time≤45min, after being evacuated to final vacuum 13.3Pa, close and vacuumize and the vacuum pump and the butterfly valve of Controlling System, whether the vacuum voltage rise rate of checking vacuum furnace body is in＜0.1Pa/min scope, the stopping property of explanation vacuum furnace body is good if meet the requirements, at this moment open vacuum pump again and vacuumize, guarantee that furnace pressure is 110Pa;
(4) starter heating: the at first intravital aura pulse power heating of starter vacuum oven, the control mode of the aura pulse power is a fixed frequency modulated PWM, its power＜50KW, its dutycycle is 0.3; Open the thermal source button of the intravital three groups of accessory power supply of vacuum oven then, and open its potentiometer knob progressively to strengthening intensification, the power of three groups of accessory power supply is 50～90KW; Feed water coolant to vacuum furnace body simultaneously;
(5) hard nitrogenize: the intravital temperature of vacuum oven is risen to 510～520 ℃, feed NH at 510～520 ℃
3Gas, 19 hours time;
(6) oxynitriding: the intravital temperature to 485 of reduction vacuum oven～495 ℃ feeds NH at 485～495 ℃
3And O
2Mixed gas, its NH
3And O
2Blending ratio be 1:0.01～0.05,6 hours time;
(7) pass equipment: after reducing the intravital temperature to 400 of vacuum oven ℃, close the aura pulse power and three groups of accessory power supply of vacuum furnace body, and stop to feed NH
3And O
2Mixed gas; When treating that the intravital temperature of vacuum oven reduces by 80～120 ℃, close and vacuumize and the butterfly valve and the vacuum pump of Controlling System, stop in stove, to feed water coolant simultaneously;
(8) take out assembly: open the stopping valve of vacuum furnace body, the vacuum furnace body inner chamber places atmosphere, opens the body of heater headkerchief after treating in the stove to become malleation by negative pressure, and takes out the coal thermomechanical components;
(9) sealing of hole: treat the coal thermomechanical components naturally cool to≤during 50 ℃ temperature, assembly surface brush or soak hang hole sealing agent after natural air drying, natural air drying time≤30 minute.
It is YLH that described vacuum furnace body adopts model
MThe electricimpulse formula ion-oxygen nitriding furnace of 250JA-2-2.
The material on described coal thermomechanical components surface is the 27SiMn steel, the height of assembly or length≤50mm.
In described step 9, described hole sealing agent is silicone resin (SiG).
Claims (4)
1. the glow ion oxynitriding erosion resistant technology of a coal thermomechanical components, comprise that blanking → rough turn → thermal treatment → semi-finishing → precision work survives → surperficial oxynitriding, it is characterized in that: surperficial oxynitriding technology wherein is glow ion oxynitriding technology, and its processing step is:
(1) check body of heater: whether the anode of monitoring device and worktable have dirt before the vacuum furnace body blow-on, and cleaning in time;
(2) assembly is gone into stove: at first, and the preceding dirt of shove charge with gasoline or diesel oil cleaning coal thermomechanical components surface, and check assembly surface, guarantee that its surface does not have crackle, sand holes, burr, butter and paint; Secondly, avoid during shove charge tying up assembly with galvanized wire, cause that to prevent zinc evaporation after stain vacuum furnace body to beat arc for a long time more than, the shove charge assembly is during as the needs frock, the weld of frock must be cleaned out welding agent in case beat arc, and the smooth striking in case produce the slit is wanted in the junction alive of frock; Once more, the coal thermomechanical components is packed in the vacuum furnace body, and make its well-balanced layout in stove, the gap≤15mm between the assembly, and the component height in the stove that guarantees to pack into or length are within effective heating zone of vacuum furnace body;
(3) vacuumize: after installing assembly and shutting the vacuum furnace body headkerchief, unlatching vacuumizes and the vacuum pump of Controlling System vacuumizes vacuum furnace body, pumpdown time≤45min, after being evacuated to final vacuum 13.3Pa, close and vacuumize and the vacuum pump and the butterfly valve of Controlling System, whether the vacuum voltage rise rate of checking vacuum furnace body is in＜0.1Pa/min scope, if the stopping property of the explanation vacuum furnace body that meets the requirements is good, at this moment open vacuum pump again and vacuumize, guarantee that furnace pressure is 110Pa;
(4) starter heating: the at first intravital aura pulse power heating of starter vacuum oven, the control mode of the aura pulse power is a fixed frequency modulated PWM, its power＜50KW, its dutycycle is 0.3; Open the thermal source button of the intravital three groups of accessory power supply of vacuum oven then, and open its potentiometer knob progressively to strengthening intensification, the power of three groups of accessory power supply is 50～90KW; Feed water coolant to vacuum furnace body simultaneously;
(5) hard nitrogenize: the intravital temperature of vacuum oven is risen to 510～520 ℃, feed NH at 510～520 ℃
3Gas, 19 hours time;
(6) oxynitriding: the intravital temperature to 485 of reduction vacuum oven～495 ℃ feeds NH at 485～495 ℃
3And O
2Mixed gas, its NH
3And O
2Blending ratio be 1:0.01～0.05,6 hours time;
(7) pass equipment: after reducing the intravital temperature to 400 of vacuum oven ℃, close the aura pulse power and three groups of accessory power supply of vacuum furnace body, and stop to feed NH
3And O
2Mixed gas; When treating that the intravital temperature of vacuum oven reduces by 80～120 ℃, close and vacuumize and the butterfly valve and the vacuum pump of Controlling System, stop in stove, to feed water coolant simultaneously;
(8) take out assembly: open the stopping valve of vacuum furnace body, the vacuum furnace body inner chamber places atmosphere, opens the body of heater headkerchief after treating in the stove to become malleation by negative pressure, and takes out the coal thermomechanical components;
(9) sealing of hole: treat the coal thermomechanical components naturally cool to≤during 50 ℃ temperature, assembly surface brush or soak hang hole sealing agent after natural air drying, natural air drying time≤30 minute.
2. the glow ion oxynitriding erosion resistant technology of coal thermomechanical components according to claim 1 is characterized in that: described vacuum furnace body is an electricimpulse formula ion-oxygen nitriding furnace.
3. the glow ion oxynitriding erosion resistant technology of coal thermomechanical components according to claim 1 is characterized in that: the material on described coal thermomechanical components surface is the 27SiMn steel, the height of assembly or length≤50mm.
4. the glow ion oxynitriding erosion resistant technology of coal thermomechanical components according to claim 1 is characterized in that: in described step 9, described hole sealing agent is silicone resin (SiG).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102876568A CN101942633B (en) | 2010-09-20 | 2010-09-20 | Glow ion oxynitriding abrasion resisting technique for coal machine assembly |
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|---|---|---|---|
| CN2010102876568A CN101942633B (en) | 2010-09-20 | 2010-09-20 | Glow ion oxynitriding abrasion resisting technique for coal machine assembly |
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| CN101942633A true CN101942633A (en) | 2011-01-12 |
| CN101942633B CN101942633B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102876568A Expired - Fee Related CN101942633B (en) | 2010-09-20 | 2010-09-20 | Glow ion oxynitriding abrasion resisting technique for coal machine assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972076A (en) * | 2017-12-28 | 2019-07-05 | 中核建中核燃料元件有限公司 | A kind of precision stainless steel tube surfaces ion Plasma Nitriding Treatment process |
| CN111425869A (en) * | 2020-04-02 | 2020-07-17 | 北京北方华创微电子装备有限公司 | Control method and system of semiconductor equipment |
| CN113215578A (en) * | 2021-05-14 | 2021-08-06 | 马鞍山市恒精金属材料科技有限公司 | Surface treatment method for metal shock absorption rod for automobile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327079A (en) * | 2001-02-28 | 2001-12-19 | 王英杰 | Ionic nitriding process for crankshaft regeneration repairing |
| CN1556243A (en) * | 2004-01-09 | 2004-12-22 | 重庆大学 | Air ion cxygen nitrogen coinfiltration technology of ferrous metal |
| JP2007297702A (en) * | 2006-05-01 | 2007-11-15 | He Kim Yun | Method for producing highly corrosion-resistant color steel |
-
2010
- 2010-09-20 CN CN2010102876568A patent/CN101942633B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327079A (en) * | 2001-02-28 | 2001-12-19 | 王英杰 | Ionic nitriding process for crankshaft regeneration repairing |
| CN1556243A (en) * | 2004-01-09 | 2004-12-22 | 重庆大学 | Air ion cxygen nitrogen coinfiltration technology of ferrous metal |
| JP2007297702A (en) * | 2006-05-01 | 2007-11-15 | He Kim Yun | Method for producing highly corrosion-resistant color steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972076A (en) * | 2017-12-28 | 2019-07-05 | 中核建中核燃料元件有限公司 | A kind of precision stainless steel tube surfaces ion Plasma Nitriding Treatment process |
| CN111425869A (en) * | 2020-04-02 | 2020-07-17 | 北京北方华创微电子装备有限公司 | Control method and system of semiconductor equipment |
| CN113215578A (en) * | 2021-05-14 | 2021-08-06 | 马鞍山市恒精金属材料科技有限公司 | Surface treatment method for metal shock absorption rod for automobile |
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| CN101942633B (en) | 2011-12-21 |
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Granted publication date: 20111221 Termination date: 20120920 |