CN102517541A - Gas nitriding treatment method of 11Cr17 stainless steel slip sheet - Google Patents
Gas nitriding treatment method of 11Cr17 stainless steel slip sheet Download PDFInfo
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- CN102517541A CN102517541A CN2011104264787A CN201110426478A CN102517541A CN 102517541 A CN102517541 A CN 102517541A CN 2011104264787 A CN2011104264787 A CN 2011104264787A CN 201110426478 A CN201110426478 A CN 201110426478A CN 102517541 A CN102517541 A CN 102517541A
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Abstract
The invention relates to a gas nitriding treatment method of 11Cr17 stainless steel slip sheet, belonging to the technical field of stainless steel treatment. The invention aims at solving the problems of large erosion on the equipment and products and large environmental pollution of the nitriding method of 11Cr17 stainless steel slip sheet in the prior art. The method of the invention comprises the steps of: degreasing and cleaning the slip sheet, performing a passive film removal treatment at 300-450 DEG C to remove the passive film on the surface of the slip sheet; continuously filling ammonia, performing a first stage nitriding treatment at 450-530 DEG C, and performing a second stage nitriding treatment at 530-580 DEG C, and cooling to obtain a nitrided 11Cr17 stainless steel slip sheet. The method of the invention has the advantages of simple technique process, low production cost, small environmental pollution, small erosion on the nitriding equipment and capability of prolonging the service life of the equipment; besides, the obtained product has good quality performance and high erosion resistance.
Description
Technical field
The present invention relates to a kind of stainless steel slide plate, relate in particular to a kind of method for nitriding gas of 11Cr17 stainless steel slide plate, belong to the stainless steel processing technology field.
Background technology
Compressor of air conditioner is an important composition link in the air-conditioning refrigeration system, and is exactly slide plate (or claim scraping blade) as one of most important building block in the compressor of air conditioner, and slide plate and piston contact movement very easily wear and tear.Therefore, need performances such as sliding capability, wear resistance and erosion resistance preferably.Because traditional compressor of air conditioner generally has non-frequency, small power and adopts the characteristics of fluorine-containing refrigerant agent; Slide plate need not pass through surface treatment; Just can satisfy the design requirements in wear resistance and work-ing life; But, increasingly high requirement is proposed in sealing along with the raising of compressor of air conditioner EER; Along with improving constantly of compressor of air conditioner precision, also increasingly high to the wear resistance requirement of slide plate, the design requirements that the compressor of air conditioner slide plate of strengthening without surface treatment has not reached complete machine.In order to strengthen the performance of compressor surface, the general performance that adopts nitridation treatment method to improve slide plate in the prior art.
(publication number: CN1424510A) disclose a kind of method of manufacture of compressor sliding blade, it specifically is to adopt aqueous ammonium chloride solution to remove the nitriding method of the gas nitriding of passive film like one Chinese patent application in the prior art.Though this method has also realized stainless steel is carried out the purpose of nitrogenize, the use of ammonium chloride has increased to corrosion on Equipment and to the corrosion of product.And for example Chinese invention patent application (publication number: CN1616704A) a kind of method of slide plate salt-bath nitriding of 11Cr17 material is provided; This method comprise to stainless steel carry out surface cleaning, be installed, preheating, processing, water-cooled and accomplish nitridation process through steps such as follow-up polishings; Wherein said processing is specifically: treatment temp is 550 ℃～580 ℃; Time is 300～400 minutes, feeds ammonia (0.6～1.2 liter/minute of flow, 800～1200 kilograms of salt baths) during processing; The treatment solution of described salt bath is made up of the weight part of following constituent: NaCNO:40%～60%; KCNO:5%～15%; LiCO
3: 3%～10%; K
2CO
3: 25%～40%; K
2S:0.01%～0.08%.Though adopt above-mentioned salt-bath nitriding method performance and efficient all very high, salt bath treatment liquid is to serious environment pollution, and on the follow-up problem that is disposing waste liquid, also brings bigger production cost, is unfavorable for the suitability for industrialized production of enterprise.
Summary of the invention
The present invention is directed to the defective that exists in the above prior art; A kind of method for nitriding gas of 11Cr17 stainless steel slide plate is provided; This method has the corrodibility of equipment and product little, and environmentally friendly, makes the 11Cr17 stainless steel slide plate that obtains have intensity and the high purpose of wear resistance.
The objective of the invention is to realize through following technical proposal: a kind of method for nitriding gas of 11Cr17 stainless steel slide plate, this method may further comprise the steps:
A) degreasing, cleaning: adopt grease-removing agent, aviation kerosene or alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, and it is 300 ℃～450 ℃ that furnace temperature is warming up to temperature, begins to drip stripper then slide plate is carried out the processing of depassivation film, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃～530 ℃ with furnace temperature after handling again, continues to feed ammonia; Carry out first section nitriding treatment, insulation 60～150min is warming up to 530 ℃～580 ℃ with furnace temperature again; Carry out second section nitriding treatment, insulation 350～720min;
D) cooling: after nitriding treatment finishes, come out of the stove after the cooling cooling, obtain nitrogenize 11Cr17 stainless steel slide plate.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the grease-removing agent described in the step a is to be used to remove lip-deep grease of 11Cr17 stainless steel slide plate and MO, is beneficial to follow-up depassivation film and handles and nitriding treatment.Described grease-removing agent is a kind of in alkali cleaner or the neutral grease-removing agent.Alkali cleaner and neutral grease-removing agent can be conventional alkali cleaner and neutral grease-removing agents of this area, and alkali cleaner and neutral grease-removing agent are water-soluble, help removing the greasy dirt on slide plate surface.As preferably, described grease-removing agent is that mass concentration is 5%～10% the grease-removing agent aqueous solution.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the speed of the dropping stripper described in the step b is 30～150/min.Through the speed that drips stripper is controlled, can guarantee that the stripper in the stove is timely, be gasified totally, make under vaporized state and contact the effect that reaches the processing of depassivation film with the slide plate surface.If rate of addition is slow excessively, then can influence evenly, effectively remove sull; If rate of addition is too fast, then can make the product surface corrosion, have influence on the quality of product.Can prevent product surface is produced the corrosive advantage and in above-mentioned rate of addition scope, have the sull that promptly can remove the slide plate surface effectively, equably.Preferred as further, the speed of described dropping stripper is 50～100/min.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the stripper described in the step b is one or both in citric acid solution, the carbon tetrachloride solution.Because 11Cr17 stainless steel slide plate forms more unmanageable passivation film easily on the surface at high-temperature process or in air, and the existence of passivation film is bigger to the influence of nitridation process, causes the degree of depth of nitrogenize and hardness all can not well reach requirement.General salt bath method or the ammonium chloride solution method of adopting handled passive film in the prior art, but because salt bath method seriously polluted to environment; The ammonium chloride solution rule is stronger to corrosion on Equipment property, all is unfavorable for actual suitability for industrialized production.And the present invention selects for use above-mentioned stripper to remove the passive film on 11Cr17 stainless steel slide plate surface in condition of high temperature gasified through technology is improved.Not only can effectively remove passive film, thereby help nitriding treatment, make the product that finally obtains on the nitrogenize degree of depth and hardness, can both reach satisfied, in addition higher, the performance and the work-ing life of having improved compressor sliding blade greatly.And adopt above-mentioned stripper of reduced contamination to environment, and have basically no pollution, be a kind of environmentally friendly stripper, also less to nitrogenize corrosion on Equipment property simultaneously, in the work-ing life of having improved equipment greatly, reduced production cost.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, as preferably, the citric acid solution described in the step b is a kind of in Hydrocerol A methanol solution or the aqueous citric acid solution.Adopt above-mentioned citric acid solution to remove the effective of sull.Preferred as further, the mass concentration of Hydrocerol A is 5%～40% in the above-mentioned citric acid solution.Adopt the citric acid solution of above-mentioned mass concentration, can reach the most reasonably effect in the homogeneity of removing sull with between to the corrosion of product and production efficiency; If mass concentration is low excessively, then can cause the inhomogeneous of removal, must increase and splash into the time, influence formation efficiency; If mass concentration is too high, then can cause product surface is produced corrosive nature, quality product there is certain influence.Further preferred, the mass concentration of Hydrocerol A is 10%～30% in the above-mentioned described citric acid solution.
As preferably, in the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the carbon tetrachloride solution described in the step b is a kind of in tetracol phenixin methanol solution or the tetracol phenixin.Preferred as further, the mass concentration of tetracol phenixin is 5%～40% in the above-mentioned described tetracol phenixin methanol solution.Adopt the tetracol phenixin methanol solution of above-mentioned mass concentration, can reach the most reasonably effect in the homogeneity of removing sull with between to the corrosion of product and production efficiency.Further preferred, the mass concentration of tetracol phenixin is 10%～30% in the above-mentioned described tetracol phenixin methyl alcohol.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the temperature described in the step b is 350 ℃～450 ℃, and the time that described depassivation film is handled is 30～120min.In above-mentioned temperature and time scope; Can either guarantee that the stripper that is added dropwise in the stove carries out the depassivation film reaction under the state of being gasified totally; Can guarantee passive film removal the corrosion fully and not product surface on slide plate surface again; The nitriding treatment process that helps next step further guarantees the quality of product.
In the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the flow of the feeding ammonia described in the step c is 2M
3/ h～15M
3/ h.Feeding ammonia is in order to provide the suitable activity nitrogen-atoms to infiltrate the surface of product.If flow is low excessively, the nitrogen gesture is low, is unfavorable for that the nitride layer that guarantees product reaches technical requirements; If flow is too high, the nitrogen gesture is high, can cause the product nitride layer excessive, surface brittleness is increased, influence the quality of product.Preferred as further, the flow of described logical ammonia is 5M
3/ h～10M
3/ h.
As preferably, in the method for nitriding gas of above-mentioned a kind of 11Cr17 stainless steel slide plate, the temperature of first section nitriding treatment described in the step c is 480 ℃～500 ℃; Described soaking time is 90～150min; The temperature of described second section nitriding treatment is 540 ℃～560 ℃, and described soaking time is 450～660min.In above-mentioned preferable range, more help guaranteeing the effect of nitrogenize, the nitrogenize degree of depth further is guaranteed with strengthening, improve the quality of products.
In sum, the present invention has the following advantages:
1. the method for nitriding gas technological process of a kind of 11Cr17 stainless steel of the present invention slide plate is simple, production cost is low, is specially adapted to handle the nitriding process of 11Cr17 stainless steel slide plate.
The method for nitriding gas of a kind of 11Cr17 stainless steel of the present invention slide plate adopt citric acid solution, carbon tetrachloride solution to carry out the depassivation film to handle environmental pollution little; It is a kind of environmentally friendly stripper; And also less to nitrogenize corrosion on Equipment property, the work-ing life that helps improving equipment.
3. the method for nitriding gas of a kind of 11Cr17 stainless steel of the present invention slide plate is handled through the depassivation film and is combined with nitriding treatment; Complement each other between each processing parameter; Indivisible, thus it is good to realize that the product finally obtain has a capability and performance, the advantage of high-wearing feature.
Embodiment
Through specific embodiment, further bright specifically below to technical scheme work of the present invention, but the present invention is not limited to these embodiment.
Embodiment 1
A) degreasing, cleaning: adopt grease-removing agent, aviation kerosene or alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, then furnace temperature being warming up to temperature is 300 ℃, and controlled temperature is at 300 ℃～350 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 120min; The speed of wherein said dropping stripper is 90～140/min, and described stripper is that mass concentration is 5% Hydrocerol A methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, nitrogenize insulation 60min, and controlled temperature is at 450 ℃～500 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 530 ℃, carries out second section nitriding treatment; Insulation nitrogenize 720min; Controlled temperature feeds ammonia at 530 ℃～550 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 5M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 2
A) degreasing, cleaning: adopt the 5% grease-removing agent aqueous solution that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant, the above-mentioned grease-removing agent aqueous solution is the alkali cleaner aqueous solution;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, again furnace temperature being warming up to temperature is 350 ℃, and controlled temperature is at 350 ℃～400 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 100min; The speed of wherein said dropping stripper is 60～120/min, and described stripper is that mass concentration is 20% Hydrocerol A methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 500 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, nitrogenize insulation 100min, and controlled temperature is at 500 ℃～530 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 550 ℃, carries out second section nitriding treatment; Nitrogenize insulation 560min; Controlled temperature feeds ammonia at 550 ℃～570 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 10M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 3
A) degreasing, cleaning: adopt alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 400 ℃, and controlled temperature is at 400 ℃～450 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 30min; The speed of wherein above-mentioned described dropping stripper is 50～80/min, and described stripper is that mass concentration is 30% Hydrocerol A methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 530 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 90min, and controlled temperature is at 520 ℃～530 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 550 ℃, carries out second section nitriding treatment; Insulation nitrogenize 480min; Controlled temperature feeds ammonia at 550 ℃～580 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 15M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 4
A) degreasing, cleaning: adopt the 10% grease-removing agent aqueous solution that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant; The described grease-removing agent aqueous solution is the neutral grease-removing agent aqueous solution;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 450 ℃, and controlled temperature is at 420 ℃～450 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 60min; The speed of wherein above-mentioned described dropping stripper is 40～70/min, and described stripper is that mass concentration is 40% Hydrocerol A methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 480 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 150min, and controlled temperature is at 480 ℃～500 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 540 ℃, carries out second section nitriding treatment; Insulation nitrogenize 520min; Controlled temperature feeds ammonia at 540 ℃～560 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 12M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 5
A) degreasing, cleaning: adopt aviation kerosene that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 430 ℃, and controlled temperature is at 430 ℃～450 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 90min; The speed of wherein above-mentioned described dropping stripper is 30～70/min, and described stripper is that mass concentration is 40% tetracol phenixin methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 120min, and controlled temperature is at 450 ℃～480 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 560 ℃, carries out second section nitriding treatment; Insulation nitrogenize 720min; Controlled temperature feeds ammonia at 560 ℃～580 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 2M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 6
A) degreasing, cleaning: adopt alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 430 ℃, and controlled temperature is at 430 ℃～450 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 90min; The speed of wherein above-mentioned described dropping stripper is 80～120/min, and described stripper is that mass concentration is 5% tetracol phenixin methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 120min, and controlled temperature is at 450 ℃～480 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 530 ℃, carries out second section nitriding treatment; Insulation nitrogenize 480min; Controlled temperature feeds ammonia at 560 ℃～580 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 8M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 7
A) degreasing, cleaning: adopt grease-removing agent that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant; Described grease-removing agent is that mass concentration is 8% neutral grease-removing agent solution;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 350 ℃, and controlled temperature is at 350 ℃～400 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 80min; The speed of wherein above-mentioned described dropping stripper is 80～120/min, and described stripper is that mass concentration is 20% tetracol phenixin methanol solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 120min, and controlled temperature is 450 ℃～480 in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 530 ℃, carries out second section nitriding treatment; Insulation nitrogenize 560min; Controlled temperature feeds ammonia at 560 ℃～580 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 5M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 8
Other is consistent with the method among the embodiment 7, and its difference is that described stripper is that mass concentration is 30% tetracol phenixin methanol solution.
Embodiment 9
Other is consistent with the method among the embodiment 6, and its difference is that described stripper is that mass concentration is 10% tetracol phenixin methanol solution.
Embodiment 10
Other is consistent with the method among the embodiment 1, and its difference is that described stripper is a tetracol phenixin, and the speed of described dropping stripper is 30～50 droplets/minute.
Embodiment 11
A) degreasing, cleaning: adopt aviation kerosene that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, and then furnace temperature is warming up to temperature is 350 ℃, and controlled temperature is at 350 ℃～380 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 80min; The speed of wherein above-mentioned described dropping stripper is 80～90/min, and described stripper is a Hydrocerol A and the methanol solution that mixes of tetracol phenixin, and the mass concentration of wherein mixing Hydrocerol A in the methanol solution is 10%; The mass concentration of tetracol phenixin is 10%, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 480 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, insulation nitrogenize 150min, and controlled temperature is at 480 ℃～500 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 540 ℃, carries out second section nitriding treatment; Insulation nitrogenize 350min; Controlled temperature feeds ammonia at 540 ℃～560 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 10M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
Embodiment 12
Other is consistent with the method among the embodiment 11, and its difference is that described stripper is a Hydrocerol A and the methanol solution that mixes of tetracol phenixin, and the mass concentration of wherein mixing Hydrocerol A in the methanol solution is 15%, and the mass concentration of tetracol phenixin is 20%.
Embodiment 13
A) degreasing, cleaning: adopt aviation kerosene or alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, vacuumize, feed the broken sky of nitrogen again to normal pressure; Stop logical nitrogen, after getting rid of the air in the nitriding furnace, more help removing passive film with nitrogen; Behind the air in the nitrogenize displacement stove, then furnace temperature being warming up to temperature is 300 ℃, and controlled temperature is at 300 ℃～350 ℃; Begin to drip stripper above-mentioned slide plate is carried out depassivation film processing 120min; The speed of wherein said dropping stripper is 90～140/min, and described stripper is that massfraction is 5% aqueous citric acid solution, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450 ℃ with furnace temperature after handling then again, continues to feed ammonia, carries out first section nitriding treatment, nitrogenize insulation 60min, and controlled temperature is at 450 ℃～500 ℃ in first section nitriding treatment insulating process; After first section nitriding treatment insulation nitrogenize finishes, again furnace temperature is warming up to 530 ℃, carries out second section nitriding treatment; Insulation nitrogenize 720min; Controlled temperature feeds ammonia at 530 ℃～550 ℃ always in second section nitriding treatment insulating process in the above-mentioned nitridation process, and the flow that feeds ammonia is 5M
3/ h; After nitriding treatment finishes, beginning cooling and being cooled to below 100 ℃ and coming out of the stove, obtaining the 11Cr17 stainless steel slide plate after the nitrogenize.
The 11Cr17 stainless steel slide plate after the nitrogenize that obtains after the gas nitriding method of the present invention that utilizes in picked at random the foregoing description carries out the test of performance, and following table 1 is concrete test result.
Table 1:
From table 1, can find out, utilize the specification of quality of the product that method of the present invention obtains to reach the product technology requirement of compressor sliding blade fully.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some specific embodiments as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (10)
1. the method for nitriding gas of a 11Cr17 stainless steel slide plate, it is characterized in that: this method may further comprise the steps:
A) degreasing, cleaning: adopt grease-removing agent, aviation kerosene or alcohol that 11Cr17 stainless steel slide plate is carried out cleaning by degreasing, remove surface and oil contaminant;
B) the depassivation film is handled: the 11Cr17 stainless steel slide plate after above-mentioned degreasing, the cleaning is put into nitriding furnace, and it is 300 ℃～450 ℃ that furnace temperature is warming up to temperature, begins to drip stripper then slide plate is carried out the processing of depassivation film, removes the passive film on slide plate surface;
C) nitriding treatment: the depassivation film is warming up to 450～530 ℃ with furnace temperature after handling again, continues to feed ammonia; Carry out first section nitriding treatment, insulation 60～150min is warming up to 530 ℃～580 ℃ with furnace temperature again; Carry out second section nitriding treatment, insulation 350～720min;
D) cooling: after nitriding treatment finishes, come out of the stove after the cooling cooling, obtain nitrogenize 11Cr17 stainless steel slide plate.
2. the method for nitriding gas of a kind of 11Cr17 stainless steel slide plate according to claim 1 is characterized in that: the grease-removing agent described in the step a is a kind of in alkali cleaner or the neutral grease-removing agent.
3. the method for nitriding gas of a kind of 11Cr17 stainless steel slide plate according to claim 2 is characterized in that: the grease-removing agent described in the step a is that mass concentration is 5%～10% the grease-removing agent aqueous solution.
4. the method for nitriding gas of a kind of 11Cr17 stainless steel slide plate according to claim 1 is characterized in that: the speed of the dropping stripper described in the step b is 30～150/min.
5. the method for nitriding gas of a kind of 11Cr17 stainless steel slide plate according to claim 1 is characterized in that: the stripper described in the step b is one or both in citric acid solution, the carbon tetrachloride solution.
6. the method for nitriding gas of a kind of 11Cr17 stainless steel slide plate according to claim 5 is characterized in that: described citric acid solution is a kind of in aqueous citric acid solution or the Hydrocerol A methanol solution; Described carbon tetrachloride solution is a kind of in tetracol phenixin or the tetracol phenixin methanol solution.
7. according to the method for nitriding gas of claim 5 or 6 described a kind of 11Cr17 stainless steel slide plates, it is characterized in that: the mass concentration of Hydrocerol A is 5%～40% in the citric acid solution described in the step b.
8. according to the method for nitriding gas of any described a kind of 11Cr17 stainless steel slide plate among the claim 1-6, it is characterized in that: the temperature described in the step b is 350 ℃～450 ℃, and the time that described depassivation film is handled is 30～120min.
9. according to the method for nitriding gas of any described a kind of 11Cr17 stainless steel slide plate among the claim 1-6, it is characterized in that: the flow of the feeding ammonia described in the step c is 2M
3/ h～15M
3/ h.
10. according to the method for nitriding gas of any described a kind of 11Cr17 stainless steel slide plate among the claim 1-6, it is characterized in that: the temperature of first section nitriding treatment described in the step c is 480 ℃～500 ℃; Described soaking time is 90～150min; The temperature of described second section nitriding treatment is 540 ℃～560 ℃, described soaking time 450～660min.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925852A (en) * | 2012-11-19 | 2013-02-13 | 常州天山重工机械有限公司 | Technique for eliminating nitrided porosity |
| CN103834905A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | New method for gas nitriding of tiny workpiece in rotary furnace |
| CN106011731A (en) * | 2015-12-10 | 2016-10-12 | 贵州西南工具(集团)有限公司 | Gas soft nitriding process for stainless steel part |
| CN106637047A (en) * | 2016-12-22 | 2017-05-10 | 机械科学研究总院青岛分院 | Surface passivation film removing method for plate-shaped stainless steel piece |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241922A (en) * | 2001-02-21 | 2002-08-28 | Yanmar Diesel Engine Co Ltd | Fuel injection valve body and gas nitriding treatment method tehrefor |
| CN1424510A (en) * | 2003-01-10 | 2003-06-18 | 宁波甬微集团有限公司 | Production for sliding vane of compressor |
| JP2004052023A (en) * | 2002-07-18 | 2004-02-19 | Hitachi Ltd | Nitriding method |
| CN1616704A (en) * | 2003-11-14 | 2005-05-18 | 上海欧本表面处理技术有限公司 | Salt bath tufftriding treatment of stainless steel (IICr17) slide vane (or vane) |
| CN101003880A (en) * | 2007-01-18 | 2007-07-25 | 庄希平 | Method for manufacturing slip-sheet of compressor |
| JP2008069410A (en) * | 2006-09-14 | 2008-03-27 | Sumitomo Denko Shoketsu Gokin Kk | Sintered stainless steel and its producing method |
| CN101386983A (en) * | 2007-09-12 | 2009-03-18 | 中国科学院金属研究所 | Cr ion-rich nitride layer and preparation method and application thereof |
| WO2010110379A1 (en) * | 2009-03-26 | 2010-09-30 | 日立金属株式会社 | Maraging steel strip |
| CN101851736A (en) * | 2010-02-09 | 2010-10-06 | 刘伟 | Environment-friendly nitrogen-enriched layer rapid nitriding treatment method |
| CN101942632A (en) * | 2010-09-21 | 2011-01-12 | 南京工业职业技术学院 | Gas nitriding process of 00Ni18Co8Mo5AlTi high-strength maraging steel |
-
2011
- 2011-12-19 CN CN 201110426478 patent/CN102517541B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241922A (en) * | 2001-02-21 | 2002-08-28 | Yanmar Diesel Engine Co Ltd | Fuel injection valve body and gas nitriding treatment method tehrefor |
| JP2004052023A (en) * | 2002-07-18 | 2004-02-19 | Hitachi Ltd | Nitriding method |
| CN1424510A (en) * | 2003-01-10 | 2003-06-18 | 宁波甬微集团有限公司 | Production for sliding vane of compressor |
| CN1616704A (en) * | 2003-11-14 | 2005-05-18 | 上海欧本表面处理技术有限公司 | Salt bath tufftriding treatment of stainless steel (IICr17) slide vane (or vane) |
| JP2008069410A (en) * | 2006-09-14 | 2008-03-27 | Sumitomo Denko Shoketsu Gokin Kk | Sintered stainless steel and its producing method |
| CN101003880A (en) * | 2007-01-18 | 2007-07-25 | 庄希平 | Method for manufacturing slip-sheet of compressor |
| CN101386983A (en) * | 2007-09-12 | 2009-03-18 | 中国科学院金属研究所 | Cr ion-rich nitride layer and preparation method and application thereof |
| WO2010110379A1 (en) * | 2009-03-26 | 2010-09-30 | 日立金属株式会社 | Maraging steel strip |
| CN101851736A (en) * | 2010-02-09 | 2010-10-06 | 刘伟 | Environment-friendly nitrogen-enriched layer rapid nitriding treatment method |
| CN101942632A (en) * | 2010-09-21 | 2011-01-12 | 南京工业职业技术学院 | Gas nitriding process of 00Ni18Co8Mo5AlTi high-strength maraging steel |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925852A (en) * | 2012-11-19 | 2013-02-13 | 常州天山重工机械有限公司 | Technique for eliminating nitrided porosity |
| CN103834905A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | New method for gas nitriding of tiny workpiece in rotary furnace |
| CN106011731A (en) * | 2015-12-10 | 2016-10-12 | 贵州西南工具(集团)有限公司 | Gas soft nitriding process for stainless steel part |
| CN106011731B (en) * | 2015-12-10 | 2018-07-10 | 贵州西南工具(集团)有限公司 | A kind of gas soft nitriding technique of stainless steel parts |
| CN106637047A (en) * | 2016-12-22 | 2017-05-10 | 机械科学研究总院青岛分院 | Surface passivation film removing method for plate-shaped stainless steel piece |
| CN106637269A (en) * | 2016-12-22 | 2017-05-10 | 机械科学研究总院青岛分院 | Removing method of irregular stainless steel piece surface passive film |
| CN106637046A (en) * | 2016-12-22 | 2017-05-10 | 机械科学研究总院青岛分院 | Removing method for passivation film on surface of round or cylindrical stainless steel part |
| CN106835099A (en) * | 2016-12-26 | 2017-06-13 | 安徽宝恒新材料科技有限公司 | A kind of method for improving stainless steel surfaces quality |
| CN106835099B (en) * | 2016-12-26 | 2019-05-21 | 广州金来德展柜制作有限公司 | A method of improving stainless steel surface quality |
| CN109355616A (en) * | 2018-11-05 | 2019-02-19 | 北京北方车辆集团有限公司 | A kind of torsion shaft rolling wheel set surface modification technology |
| CN113481465A (en) * | 2021-06-30 | 2021-10-08 | 中国航发动力股份有限公司 | Preparation and detection method of carburized layer |
| CN113481465B (en) * | 2021-06-30 | 2023-01-31 | 中国航发动力股份有限公司 | Preparation and detection method of carburized layer |
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Effective date of registration: 20230920 Address after: 318000 No. 2399 Haicheng Road, Taizhou Bay New Area, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG BAIDA PRECISION MANUFACTURING Corp. Address before: No. 28, Lane 908, Jingzhong Road, Economic Development Zone, Taizhou City, Zhejiang Province, 318000 Patentee before: TAIZHOU BAIDA HEAT TREATMENT CO.,LTD. |