CN104451584A - Method for preparing anti-lock thread coating through PVD - Google Patents
Method for preparing anti-lock thread coating through PVD Download PDFInfo
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- CN104451584A CN104451584A CN201410750698.9A CN201410750698A CN104451584A CN 104451584 A CN104451584 A CN 104451584A CN 201410750698 A CN201410750698 A CN 201410750698A CN 104451584 A CN104451584 A CN 104451584A
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Abstract
The invention discloses a method for preparing an anti-lock thread coating through PVD (physical vapor deposition). The method for preparing the anti-lock thread coating through PVD comprises the following steps: (1) polishing the surface of a metal thread, removing oil stain, and dewatering; (2) spraying sand to roughen the surface of the metal thread; (3) putting the metal thread into vacuum cathodic arc deposition equipment, and sputter-etching to obtain a surface activated metal thread; (4) introducing argon into the vacuum cathodic arc deposition equipment, and plating a film on the surface activated metal thread for the first time to obtain a metal thread with a nickel coating on the surface; and (5) plating a film on the metal thread for the second time in an argon atmosphere by using a pure-silver cathodic arc source to obtain a metal thread with a nickel composite coating on the surface. Because the wear resistant anti-lock coating is prepared on the surface of the metal thread through PVD, the prepared wear resistant anti-lock thread coating has a strong bonding force, can resist corrosion, is low in friction coefficient and is highly reliable, the purposes of improving the fastening force of a screw and preventing the metal thread from being occluded and locked can be achieved, and the metal thread can serve a long time under heavy load, corrosion and other harsh environment.
Description
Technical field
The invention belongs to screw thread anti-locking coat preparing technology field, be specifically related to a kind of method that PVD prepares screw thread anti-locking coating.
Background technology
Along with the demand of aerospace, warship field is high for intensity, solidity to corrosion is good threaded fastener, the threaded fastener of titanium alloy and stainless material uses in a large number, usually this type of metallochemistry activity is all higher, and the fine and close passivation layer produced because of its surface makes material corrosion resisting property be better than common steel fastening piece.But titanium alloy, Stainless Steel Watch surface hardness are low, antifriction poor performance is more responsive to adhesive wear.Under high pulling torque heavy lift condition, between screw thread, local friction and temperature rise can destroy the passivation layer of material surface, make the direct friction texturizing of metal and then stick together fusion.Along with stick together phenomenon continue to occur and adhesion region increases time, can cause that screw thread is completely locked again cannot be dismantled or fastening, cause component failure.For this reason, scientific research personnel have studied comprise material surface modifying, the method for coating slip coating hinders and to deform between screw thread and to stick together inefficacy, reach screw thread under burn into heavy duty, frequent fastening condition in long-term object of being on active service.
At present, for the problem that titanium alloy, stainless steel screw thread are locked, occurred a lot of method, such as surface-coated lubricates screw thread containing molybdenumdisulphide, graphite, mica or talcous ointment; Adopt electrochemical treatment to increase passivation layer thickness, adopt electroplating processes to prepare barrier coat etc., but be subject to the restriction of screw thread environment for use and preparation technology of coating, be difficult to obtain satisfied effect.Such as lubrication paste easily comes off and lost efficacy and caused lubricant secondary pollution; Plating, electrochemical treatment cause titanium alloy, stainless material hydrogen embrittlement and titanium alloy to there is the problem being difficult to plating, both increase the complicacy of screw thread manufacture and use installation process, cannot meet the higher demand that is threaded.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of PVD to prepare the method for screw thread anti-locking coating.The method adopts PVD technology in metal threaded surface preparation anti-attrition anti-locking coating, the coating binding force formed is strong, corrosion-resistant, frictional coefficient is low, reliability is high, can realize improving screw fastening force, prevent the object that metal threaded occlusion is locked, metal threaded service life under the severe environment such as heavy duty, corrosion can be extended.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, the method comprises the following steps:
Step one, polished finish is carried out to metal threaded surface, then remove the greasy dirt on the metal threaded surface after polished finish, then processed is carried out to metal threaded after wipe oil;
Step 2, sandblasting roughening treatment is carried out to the metal threaded surface in step one after processed;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, under vacuum to the voltage of metal threaded applying-1000V ~-1500V, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is pure nickel, and cathode arc electric current is 45A ~ 100A; In ise process, the vacuum tightness of vacuum chamber is 0.01Pa ~ 0.1Pa, and temperature is 150 DEG C ~ 250 DEG C, and the time of ise is 5min ~ 15min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.1Pa ~ 0.5Pa, then adopt the cathode arc source of pure nickel material to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and there is the metal threaded of nickel coating; In coating film treatment process, the temperature of vacuum chamber is 150 DEG C ~ 350 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-50V ~-350V; First time, the cathode arc electric current of coating film treatment was 45A ~ 75A, and the time of coating film treatment first time is 15min ~ 60min;
Step 5, under an argon atmosphere, adopts the cathode arc source of fine silver material to have the metal threaded of nickel coating to surface described in step 4 and carries out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating; In second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.1Pa ~ 0.5Pa, and temperature is 150 DEG C ~ 350 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-50V ~-350V; The cathode arc electric current of second time coating film treatment is 40A ~ 75A, and the time of second time coating film treatment is 30min ~ 90min.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, polished finish described in step one adopts vibration finishing to remove the burr on metal threaded surface, the abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 1mm ~ 5mm, and the time of vibration finishing is 5min ~ 20min.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, material metal threaded described in step one is titanium, titanium alloy or stainless steel.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, the sand grains that the roughening treatment of sandblasting described in step 2 adopts is 200 order ~ 300 order granulated glass spherees or 200 order ~ 300 order steel balls, and blasting pressure is 0.1MPa ~ 0.5MPa, and blast time is 10s ~ 200s.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, described in pure nickel described in step 3 and step 4, the quality purity of pure nickel is more than 99.9%, and the quality purity of fine silver described in step 5 is more than 99.9%.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, described in step 5, surface has the thickness of the metal threaded middle nickel coating of nickeline compound coating is 0.5 μm ~ 5 μm, and the thickness of silver coating is 0.5 μm ~ 5 μm.
Above-mentioned a kind of PVD prepares the method for screw thread anti-locking coating, it is characterized in that, the thickness of described nickel coating is 0.5 μm ~ 2 μm.
The present invention compared with prior art has the following advantages:
1, the present invention solve reliably metal threaded fastening time destroy metal surface passivation layer because thread pitch local friction and temperature rise, make metallic surface produce stick together, cause the problem of the locked inefficacy of screw thread.
2, the present invention carried out sandblasting to metal threaded surface before PVD, and in Vacuum cathodic are deposition equipment, ion sputtering is carried out to metal threaded surface, ise thread surface passivation layer, realize metal threaded surface active, effectively can improve the bonding strength of coating and metal threaded matrix, extend coating work-ing life, the secondary initial friction coefficient of thread friction can be effectively reduced simultaneously.
3, the present invention adopts Vacuum cathodic are deposition equipment metal threaded plating nickel on surface coating after activation and silver coating, nickel coating hardness is high, there is good chemical stability, good consistency is had with metals such as titanium alloy, stainless steel or aluminium alloys, silver coating quality is softer, and Ag atom easily spreads slippage, not easily forms abrasive dust and cause coating to destroy when screw thread rubs mutually, possess good chemical stability, solidity to corrosion is good simultaneously.
4, the present invention adopts PVD technology in metal threaded surface preparation anti-attrition anti-locking coating, the coating binding force formed is strong, corrosion-resistant, frictional coefficient is low, reliability is high, can realize improving screw fastening force, prevent the object that metal threaded occlusion is locked, metal threaded service life under the severe environment such as heavy duty, corrosion can be extended.
Below in conjunction with drawings and Examples, technical solution of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the metal threaded PVvalue testing curve with nickeline compound coating prepared by 316 stainless steel screw threads and the embodiment of the present invention 1.
Fig. 2 is the metal threaded PVvalue testing curve with nickeline compound coating prepared by TC4 titanium alloy screw thread and the embodiment of the present invention 2.
Embodiment
Embodiment 1
The present embodiment used metal threaded be 316 stainless steel screw threads, the preparation method of screw thread anti-locking coating is:
Step one, employing vibration finishing carry out to metal threaded surface the burr that metal threaded surface is removed in polished finish, then adopt acetone ultrasonic cleaning to remove the greasy dirt on the metal threaded surface after polished finish, then use the process of alcohol supersonic dewatering; The abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 2mm ~ 3mm, and the time of vibration finishing is 20min;
Step 2, carry out sandblasting roughening treatment to the metal threaded surface in step one after processed, the sand grains that sandblasting roughening treatment adopts is 200 order ~ 300 order steel balls, and blasting pressure is 0.5MPa, and blast time is 200s;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, be the voltage to metal threaded applying-1300V under the condition of 0.1Pa in vacuum tightness, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is the pure nickel of quality purity more than 99.9%, and cathode arc electric current is 100A; In ise process, the temperature of vacuum chamber is 150 DEG C, and the time of ise is 15min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.5Pa, then the cathode arc source of the pure nickel material of quality purity more than 99.9% is adopted to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and have the metal threaded of nickel coating, nickel coating thickness is 5 μm; In coating film treatment process, the temperature of vacuum chamber is 150 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-50V; First time, the cathode arc electric current of coating film treatment was 45A, and the time of coating film treatment first time is 60min;
Step 5, under an argon atmosphere, adopt the cathode arc source of the fine silver material that quality purity is more than 99.9% to have the metal threaded of nickel coating to surface described in step 4 and carry out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating, wherein the thickness of silver coating is 5 μm; In described second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.5Pa, and temperature is 350 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-350V; The cathode arc electric current of described second time coating film treatment is 75A, and the time of second time coating film treatment is 90min.
Metal threaded (in figure the 316/Ni-Ag coating) 316 stainless steel screw threads (in figure 316 stainless steels) and surface prepared by the present embodiment to nickeline compound coating carries out PVvalue testing under identical frictional wear condition, the results are shown in Figure 1, as can be seen from the figure, the surface that under identical frictional wear condition prepared by the present embodiment has the frictional coefficient of metal threaded initial friction coefficient far below 316 stainless steel screw thread original surfaces of nickeline compound coating, illustrates that surface prepared by the present embodiment has the metal threaded of nickeline compound coating and has anti-locking performance.
Carry out tightening unclamping experiment with torque spanner double thread friction pair, the metal threaded number of times of tightening that surface prepared by the present embodiment has nickeline compound coating is tightening more than 5 times of number of times and destroying of undressed 316 stainless steel screw threads.Under identical moment, thread spindle increases 30% to fastening force.
Embodiment 2
The present embodiment used metal threaded be TC4 titanium alloy screw thread, the preparation method of screw thread anti-locking coating is:
Step one, employing vibration finishing carry out to metal threaded surface the burr that metal threaded surface is removed in polished finish, then adopt the greasy dirt on the metal threaded surface of industrial cleaning agent solution removal after polished finish, after washing down the industrial cleaning agent on the metal threaded surface after wipe oil, carry out warm air drying dehydration; The abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 1mm ~ 5mm, and the time of vibration finishing is 15min;
Step 2, carry out sandblasting roughening treatment to the metal threaded surface in step one after processed, the sand grains that sandblasting roughening treatment adopts is 200 order ~ 300 order granulated glass spherees, and blasting pressure is 0.15MPa, and blast time is 20s;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, be the voltage to metal threaded applying-1000V under the condition of 0.03Pa in vacuum tightness, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is the pure nickel of quality purity more than 99.9%, and cathode arc electric current is 45A; In ise process, the temperature of vacuum chamber is 250 DEG C, and the time of ise is 5min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.1Pa, then the cathode arc source of the pure nickel material of quality purity more than 99.9% is adopted to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and have the metal threaded of nickel coating, nickel coating thickness is 0.5 μm; In coating film treatment process, the temperature of vacuum chamber is 150 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-50V; First time, the cathode arc electric current of coating film treatment was 45A, and the time of coating film treatment first time is 15min;
Step 5, under an argon atmosphere, adopt the cathode arc source of the fine silver material that quality purity is more than 99.9% to have the metal threaded of nickel coating to surface described in step 4 and carry out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating, wherein the thickness of silver coating is 0.5 μm; In described second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.2Pa, and temperature is 150 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-50V; The cathode arc electric current of described second time coating film treatment is 40A, and the time of second time coating film treatment is 30min.
Metal threaded (in figure the TC4/Ni-Ag coating) TC4 titanium alloy screw thread (in figure TC4) and surface prepared by the present embodiment to nickeline compound coating carries out PVvalue testing under identical frictional wear condition, the results are shown in Figure 2, as can be seen from the figure, the surface that under identical frictional wear condition prepared by the present embodiment has the frictional coefficient of metal threaded initial friction coefficient far below TC4 titanium alloy screw thread original surface of nickeline compound coating, illustrates that surface prepared by the present embodiment has the metal threaded of nickeline compound coating and has anti-locking performance.
Carry out tightening unclamping experiment with torque spanner double thread friction pair, the metal threaded number of times of tightening that surface prepared by the present embodiment has nickeline compound coating is tightening more than 5 times of number of times and destroying of undressed TC4 titanium alloy screw thread.Under identical moment, thread spindle increases 35% to fastening force.
Embodiment 3
The present embodiment used metal threaded be the pure titanium screw thread of TA1, the preparation method of screw thread anti-locking coating is:
Step one, employing vibration finishing carry out to metal threaded surface the burr that metal threaded surface is removed in polished finish, then adopt acetone ultrasonic cleaning to remove the greasy dirt on the metal threaded surface after polished finish, then use the process of alcohol supersonic dewatering; The abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 1mm ~ 3mm, and the time of vibration finishing is 10min;
Step 2, carry out sandblasting roughening treatment to the metal threaded surface in step one after processed, the sand grains that sandblasting roughening treatment adopts is 200 order ~ 300 order granulated glass spherees, and blasting pressure is 0.3MPa, and blast time is 10s;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, be the voltage to metal threaded applying-1200V under the condition of 0.01Pa in vacuum tightness, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is the pure nickel of quality purity more than 99.9%, and cathode arc electric current is 70A; In ise process, the temperature of vacuum chamber is 200 DEG C, and the time of ise is 10min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.3Pa, then the cathode arc source of the pure nickel material of quality purity more than 99.9% is adopted to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and have the metal threaded of nickel coating, nickel coating thickness is 2 μm; In coating film treatment process, the temperature of vacuum chamber is 350 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-350V; First time, the cathode arc electric current of coating film treatment was 75A, and the time of coating film treatment first time is 30min;
Step 5, under an argon atmosphere, adopt the cathode arc source of the fine silver material that quality purity is more than 99.9% to have the metal threaded of nickel coating to surface described in step 4 and carry out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating, wherein the thickness of silver coating is 3 μm; In described second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.1Pa, and temperature is 250 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-50V; The cathode arc electric current of described second time coating film treatment is 50A, and the time of second time coating film treatment is 60min.
To TA1 pure titanium screw thread and surface prepared by the present embodiment, there is the metal threaded of nickeline compound coating and carry out PVvalue testing under identical frictional wear condition, result shows, the surface that under identical frictional wear condition prepared by the present embodiment has the frictional coefficient of metal threaded initial friction coefficient far below TA1 pure titanium screw thread original surface of nickeline compound coating, illustrates that surface prepared by the present embodiment has the metal threaded of nickeline compound coating and has anti-locking performance.
Carry out tightening unclamping experiment with torque spanner double thread friction pair, the metal threaded number of times of tightening that surface prepared by the present embodiment has nickeline compound coating is tightening more than 5 times of number of times and destroying of the pure titanium screw thread of undressed TA1.Under identical moment, thread spindle increases 35% to fastening force.
Embodiment 4
The present embodiment used metal threaded be TC6 titanium alloy screw thread, the preparation method of screw thread anti-locking coating is:
Step one, employing vibration finishing carry out to metal threaded surface the burr that metal threaded surface is removed in polished finish, then adopt acetone ultrasonic cleaning to remove the greasy dirt on the metal threaded surface after polished finish, then use the process of alcohol supersonic dewatering; The abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 3mm ~ 5mm, and the time of vibration finishing is 5min;
Step 2, carry out sandblasting roughening treatment to the metal threaded surface in step one after processed, the sand grains that sandblasting roughening treatment adopts is 200 order ~ 300 order steel balls, and blasting pressure is 0.1MPa, and blast time is 100s;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, be the voltage to metal threaded applying-1500V under the condition of 0.05Pa in vacuum tightness, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is the pure nickel of quality purity more than 99.9%, and cathode arc electric current is 80A; In ise process, the temperature of vacuum chamber is 200 DEG C, and the time of ise is 10min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.2Pa, then the cathode arc source of the pure nickel material of quality purity more than 99.9% is adopted to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and have the metal threaded of nickel coating, nickel coating thickness is 1 μm; In coating film treatment process, the temperature of vacuum chamber is 200 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-100V; First time, the cathode arc electric current of coating film treatment was 50A, and the time of coating film treatment first time is 20min;
Step 5, under an argon atmosphere, adopt the cathode arc source of the fine silver material that quality purity is more than 99.9% to have the metal threaded of nickel coating to surface described in step 4 and carry out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating, wherein the thickness of silver coating is 2 μm; In described second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.3Pa, and temperature is 200 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-150V; The cathode arc electric current of described second time coating film treatment is 60A, and the time of second time coating film treatment is 45min.
To TC6 titanium alloy screw thread and surface prepared by the present embodiment, there is the metal threaded of nickeline compound coating and carry out PVvalue testing under identical frictional wear condition, result shows, the surface that under identical frictional wear condition prepared by the present embodiment has the frictional coefficient of metal threaded initial friction coefficient far below TC6 titanium alloy screw thread original surface of nickeline compound coating, illustrates that surface prepared by the present embodiment has the metal threaded of nickeline compound coating and has anti-locking performance.
Carry out tightening unclamping experiment with torque spanner double thread friction pair, the metal threaded number of times of tightening that surface prepared by the present embodiment has nickeline compound coating is tightening more than 5 times of number of times and destroying of undressed TC6 titanium alloy screw thread.Under identical moment, thread spindle increases 30% to fastening force.
The above; it is only preferred embodiment of the present invention; not any restriction is done to the present invention, every above embodiment is done according to invention technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (7)
1. PVD prepares a method for screw thread anti-locking coating, it is characterized in that, the method comprises the following steps:
Step one, polished finish is carried out to metal threaded surface, then remove the greasy dirt on the metal threaded surface after polished finish, then processed is carried out to metal threaded after wipe oil;
Step 2, sandblasting roughening treatment is carried out to the metal threaded surface in step one after processed;
Step 3, by the metal threaded vacuum chamber being placed in Vacuum cathodic are deposition equipment in step 2 after sandblasting roughening treatment, under vacuum to the voltage of metal threaded applying-1000V ~-1500V, the metal ion beam stream that the electric field anticathode arc source electric discharge formed produces carries out the passivation layer accelerating rear ise thread surface, obtains the metal threaded of surface active; The material of described cathode arc source is pure nickel, and cathode arc electric current is 45A ~ 100A; In ise process, the vacuum tightness of vacuum chamber is 0.01Pa ~ 0.1Pa, and temperature is 150 DEG C ~ 250 DEG C, and the time of ise is 5min ~ 15min;
Step 4, in the vacuum chamber of the equipment of Vacuum cathodic are deposition described in step 3, pass into argon gas to vacuum tightness be 0.1Pa ~ 0.5Pa, then adopt the cathode arc source of pure nickel material to carry out first time coating film treatment to the metal threaded of surface active described in step 3, obtain surface and there is the metal threaded of nickel coating; In coating film treatment process, the temperature of vacuum chamber is 150 DEG C ~ 350 DEG C for the first time, and the voltage of the metal threaded upper applying of surface active is-50V ~-350V; First time, the cathode arc electric current of coating film treatment was 45A ~ 75A, and the time of coating film treatment first time is 15min ~ 60min;
Step 5, under an argon atmosphere, adopts the cathode arc source of fine silver material to have the metal threaded of nickel coating to surface described in step 4 and carries out second time coating film treatment, obtain surface and have the metal threaded of nickeline compound coating; In second time coating film treatment process, the vacuum tightness of vacuum chamber is 0.1Pa ~ 0.5Pa, and temperature is 150 DEG C ~ 350 DEG C, and the voltage that surface has the metal threaded upper applying of nickel coating is-50V ~-350V; The cathode arc electric current of second time coating film treatment is 40A ~ 75A, and the time of second time coating film treatment is 30min ~ 90min.
2. a kind of PVD according to claim 1 prepares the method for screw thread anti-locking coating, it is characterized in that, polished finish described in step one adopts vibration finishing to remove the burr on metal threaded surface, the abrasive material that described vibration finishing adopts is the white fused alumina particle of granularity 1mm ~ 5mm, and the time of vibration finishing is 5min ~ 20min.
3. a kind of PVD according to claim 1 prepares the method for screw thread anti-locking coating, it is characterized in that, material metal threaded described in step one is titanium, titanium alloy or stainless steel.
4. a kind of PVD according to claim 1 prepares the method for screw thread anti-locking coating, it is characterized in that, the sand grains that the roughening treatment of sandblasting described in step 2 adopts is 200 order ~ 300 order granulated glass spherees or 200 order ~ 300 order steel balls, blasting pressure is 0.1MPa ~ 0.5MPa, and blast time is 10s ~ 200s.
5. a kind of PVD according to claim 1 prepares the method for screw thread anti-locking coating, it is characterized in that, described in pure nickel described in step 3 and step 4, the quality purity of pure nickel is more than 99.9%, and the quality purity of fine silver described in step 5 is more than 99.9%.
6. a kind of PVD according to claim 1 prepares the method for screw thread anti-locking coating, it is characterized in that, described in step 5, surface has the thickness of the metal threaded middle nickel coating of nickeline compound coating is 0.5 μm ~ 5 μm, and the thickness of silver coating is 0.5 μm ~ 5 μm.
7. a kind of PVD according to claim 6 prepares the method for screw thread anti-locking coating, it is characterized in that, the thickness of described nickel coating is 0.5 μm ~ 2 μm.
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Cited By (6)
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| CN108103462A (en) * | 2018-01-31 | 2018-06-01 | 西安赛福斯材料防护有限责任公司 | The preparation method of the wear-resisting anti-locking Ni-AgPd composite coatings of aviation bolt surface |
| CN108103469A (en) * | 2018-01-31 | 2018-06-01 | 西安赛福斯材料防护有限责任公司 | It is a kind of that the method that screw thread prevents killing coating is prepared using non-balance magnetically controlled sputter |
| CN108165945A (en) * | 2018-01-31 | 2018-06-15 | 西安赛福斯材料防护有限责任公司 | A kind of preparation method of nuclear power stainless steel bolt surface anti-locking coating |
| CN108179385A (en) * | 2018-01-31 | 2018-06-19 | 西安赛福斯材料防护有限责任公司 | A kind of method that screw thread wear-and corrosion-resistant anti-locking coating is prepared using multi-arc ion coating |
| CN109207935A (en) * | 2018-10-23 | 2019-01-15 | 集美大学 | A kind of method that plasmaassisted electro beam physics vapour deposition prepares PVD protective coating |
| CN115581800A (en) * | 2022-10-24 | 2023-01-10 | 杭州明康捷医疗科技有限公司 | Titanium-based silver-coated implantable antibacterial medical device and preparation method thereof |
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| CN108103462A (en) * | 2018-01-31 | 2018-06-01 | 西安赛福斯材料防护有限责任公司 | The preparation method of the wear-resisting anti-locking Ni-AgPd composite coatings of aviation bolt surface |
| CN108103469A (en) * | 2018-01-31 | 2018-06-01 | 西安赛福斯材料防护有限责任公司 | It is a kind of that the method that screw thread prevents killing coating is prepared using non-balance magnetically controlled sputter |
| CN108165945A (en) * | 2018-01-31 | 2018-06-15 | 西安赛福斯材料防护有限责任公司 | A kind of preparation method of nuclear power stainless steel bolt surface anti-locking coating |
| CN108179385A (en) * | 2018-01-31 | 2018-06-19 | 西安赛福斯材料防护有限责任公司 | A kind of method that screw thread wear-and corrosion-resistant anti-locking coating is prepared using multi-arc ion coating |
| CN108165945B (en) * | 2018-01-31 | 2019-11-12 | 西安赛福斯材料防护有限责任公司 | A kind of preparation method of nuclear power stainless steel bolt surface anti-locking coating |
| CN108103469B (en) * | 2018-01-31 | 2019-11-12 | 西安赛福斯材料防护有限责任公司 | A method of screw thread is prepared using non-balance magnetically controlled sputter and prevents killing coating |
| CN108179385B (en) * | 2018-01-31 | 2019-11-12 | 西安赛福斯材料防护有限责任公司 | A method of screw thread wear-and corrosion-resistant anti-locking coating is prepared using multi-arc ion coating |
| CN108103462B (en) * | 2018-01-31 | 2019-11-12 | 西安赛福斯材料防护有限责任公司 | The preparation method of the wear-resisting anti-locking Ni-AgPd composite coating of aviation bolt surface |
| CN109207935A (en) * | 2018-10-23 | 2019-01-15 | 集美大学 | A kind of method that plasmaassisted electro beam physics vapour deposition prepares PVD protective coating |
| CN115581800A (en) * | 2022-10-24 | 2023-01-10 | 杭州明康捷医疗科技有限公司 | Titanium-based silver-coated implantable antibacterial medical device and preparation method thereof |
| CN115581800B (en) * | 2022-10-24 | 2023-08-18 | 杭州明康捷医疗科技有限公司 | Titanium-based silver-coated implanted antibacterial medical instrument and preparation method thereof |
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Denomination of invention: A method of preparing thread anti lock coating by PVD Effective date of registration: 20200825 Granted publication date: 20170222 Pledgee: Weiyang sub branch of Shaanxi qinnong Rural Commercial Bank Co., Ltd Pledgor: XI'AN SURFACE MATERIAL PROTECTION Co.,Ltd. Registration number: Y2020610000130 |
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Date of cancellation: 20220216 Granted publication date: 20170222 Pledgee: Weiyang sub branch of Shaanxi qinnong Rural Commercial Bank Co.,Ltd. Pledgor: XI'AN SURFACE MATERIAL PROTECTION Co.,Ltd. Registration number: Y2020610000130 |