CN104789907A - Antifriction coating for metal surface and preparation method of antifriction coating - Google Patents
Antifriction coating for metal surface and preparation method of antifriction coating Download PDFInfo
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Abstract
The invention discloses an antifriction coating for a metal surface and a preparation method thereof. The antifriction coating comprises the following components in mass percent: 0.02-0.05% of carbon, 0.6-0.8% of silicon, 2.5-2.8% of scandium, 3.7-3.9% of vanadium, 9.5-9.8% of nickel, 0.5-0.8% of manganese, 1.2-1.5% of cobalt, 1.4-1.6% of rhodium, 2.2-2.4% of lead, 0.7-0.9% of tungsten, 4.2-4.5% of aluminum, 2.5-2.7% of potassium, 0.85-0.88% of copper, 4.52-4.56% of zinc, 2.57-2.59% of rare earth, 1.24-1.26% of an auxiliary, and the balance of iron.
Description
Technical field
The invention belongs to metal field, relate to a kind of for metallic surface rub resistance coating and preparation method thereof.
Background technology
Along with the progress of society and the development of science and technology, metal products is more and more extensive in the utilization of the various fields of recent life of industry, agricultural and people, also gives social creativity increasing value simultaneously.Current, metal products is faced with a lot of problem, wherein rub resistance problem is the problem that metal products must face and solve, and in order to improve the performance such as anti-oxidant, wear-resisting and high temperature resistant of metal products, people are realized by metallic coating fast in surface of metal product usually; But existing metallic coating still has problems, as: production cost is high, work-ing life is short, heat-resistant antifriction performance is low.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, provide a kind of for metallic surface rub resistance coating and preparation method thereof, not only intensity is high, resistance to corrosion and resistance of oxidation extremely strong, and the rub resistance ability on its surface improves greatly, reduce its wearing and tearing, increase its work-ing life, and preparation method is provided, method is simple, and cost is low, and production efficiency is high.
In order to solve above technical problem, the invention provides a kind of for metallic surface rub resistance coating, the component of this rub resistance coating is by mass percentage: carbon: 0.02-0.05%, silicon: 0.6-0.8%, scandium: 2.5-2.8%, vanadium: 3.7-3.9%, nickel: 9.5-9.8%, manganese: 0.5-0.8%, cobalt: 1.2-1.5%, rhodium: 1.4-1.6%, plumbous: 2.2-2.4%, tungsten: 0.7-0.9%, aluminium: 4.2-4.5%, potassium: 2.5-2.7%, copper: 0.85-0.88%, zinc: 4.52-4.56%, rare earth: 2.57-2.59%, auxiliary agent: 1.24-1.26%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.5-12.8%, neodymium: 12.8-13.1%, promethium: 8.3-8.5%, europium: 4.2-4.4%, dysprosium: 3.2-3.5%, lutetium: 2.2-2.5%, praseodymium: 1.2-1.6%, erbium: 4.1-4.4%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 12-15 part, kaolinite: 3-5 part, clay 20-25 part;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 820-830 DEG C, calcining 3-5 hour, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
The present invention is also provided for the preparation method of metallic surface rub resistance coating, and concrete preparation method is as follows:
Step (1): carbon, silicon, scandium, vanadium, nickel, manganese, cobalt, rhodium, lead, tungsten, aluminium, potassium, copper, zinc and ferro element are put into furnace, then after furnace temperature being risen to 665-670 DEG C, insulation 1-3 hour, then temperature is risen to 950-960 DEG C, put into rare earth and auxiliary agent, stir, insulation 3-5 hour, then air cooling is to 420-430 DEG C, then water-cooled is to room temperature;
Step (2): through the refining of LF stove, temperature is increased to 1120-1130 DEG C, insulation 3-5h, omnidistance nitrogen blowing stirs, and carry out degassed with vacuum degassing furnace, degassing temperature is 820-830 DEG C, vacuum tightness 43-45 handkerchief, and pumpdown time is at 3-5h, and then air cooling is to room temperature;
Step (3): the metal that step (2) obtains is put into ball mill, temperature is increased to 620-650 DEG C, insulation 1-3 hour, then start ball mill abrasive dust, cross 40 mesh sieves, then temperature is increased to 720-730 DEG C, insulation 1-2 hour, crosses 100 mesh sieves, obtains powder particle B;
Step (4): it is 1-3mm that the powder particle B in step (3) is sprayed into metallic surface thickness, is then heated to 620-630 DEG C, insulation 1-2 hour, then water-cooled is to room temperature, again temperature is increased to 310-320 DEG C, insulation 1-2 hour, air cooling is to room temperature.
The technical scheme that the present invention limits further is:
Aforesaid for metallic surface rub resistance coating, the component of this rub resistance coating is by mass percentage: carbon: 0.02%, silicon: 0.6%, scandium: 2.5%, vanadium: 3.7%, nickel: 9.5%, manganese: 0.5%, cobalt: 1.2%, rhodium: 1.4%, plumbous: 2.2%, tungsten: 0.7%, aluminium: 4.2%, potassium: 2.5%, copper: 0.85%, zinc: 4.52%, rare earth: 2.57%, auxiliary agent: 1.24%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.5%, neodymium: 12.8%, promethium: 8.3%, europium: 4.2%, dysprosium: 3.2%, lutetium: 2.2%, praseodymium: 1.2%, erbium: 4.1%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 12 parts, kaolinite: 3 parts, clay 20 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 820 DEG C, calcine 3 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
Aforesaid for metallic surface rub resistance coating, the component of this rub resistance coating is by mass percentage: carbon: 0.05%, silicon: 0.8%, scandium: 2.8%, vanadium: 3.9%, nickel: 9.8%, manganese: 0.8%, cobalt: 1.5%, rhodium: 1.6%, plumbous: 2.4%, tungsten: 0.9%, aluminium: 4.5%, potassium: 2.7%, copper: 0.88%, zinc: 4.56%, rare earth: 2.59%, auxiliary agent: 1.26%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.8%, neodymium: 13.1%, promethium: 8.5%, europium: 4.4%, dysprosium: 3.5%, lutetium: 2.5%, praseodymium: 1.6%, erbium: 4.4%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 15 parts, kaolinite: 5 parts, clay 25 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 830 DEG C, calcine 5 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
Aforesaid for metallic surface rub resistance coating, the component of this rub resistance coating is by mass percentage: carbon: 0.04%, silicon: 0.7%, scandium: 2.7%, vanadium: 3.8%, nickel: 9.6%, manganese: 0.7%, cobalt: 1.3%, rhodium: 1.5%, plumbous: 2.3%, tungsten: 0.8%, aluminium: 4.4%, potassium: 2.6%, copper: 0.87%, zinc: 4.54%, rare earth: 2.58%, auxiliary agent: 1.25%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.7%, neodymium: 12.9%, promethium: 8.4%, europium: 4.3%, dysprosium: 3.3%, lutetium: 2.4%, praseodymium: 1.5%, erbium: 4.3%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 14 parts, kaolinite: 4 parts, clay 22 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 825 DEG C, calcine 4 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
The invention has the beneficial effects as follows: this coating not only intensity is high, resistance of oxidation and heat-resisting ability extremely strong, and the rub resistance ability on its surface improves greatly, reduces its wearing and tearing, increase its work-ing life, excellent adsorption, and preparation method is provided, method is simple, and cost is low, and production efficiency is high; Scandium element is added in its floating coat, erosion resistance and intensity can be improved, add cobalt element, energy crystal grain thinning in thermal treatment, can strengthen its intensity, toughness, anticorrosive, the wear-resisting and load that withstands shocks etc., add copper, energy crystal grain thinning and its superheated susceptivity of reduction and temper brittleness, improve intensity, resistant to hydrogen under weather-resistant and high temperature, nitrogen, ammonia corrosion can be improved, add nickel element, its wear-resisting ability ability can be improved and increase its intensity, improve its fusing point, increase ability and the resistance of oxidation of high temperature resistance; And add rare earth element, can in heat treatment process crystal grain thinning, form fine and close crystalline structure, increase intensity and the crocking resistance of coating, and containing dravite, kaolinite and clay in auxiliary agent, improve corrosion resistance nature and the crocking resistance of coating, increase its work-ing life.
Embodiment
embodiment 1
The one that the present embodiment provides is for metallic surface rub resistance coating, and the component of this rub resistance coating is by mass percentage: carbon: 0.02%, silicon: 0.6%, scandium: 2.5%, vanadium: 3.7%, nickel: 9.5%, manganese: 0.5%, cobalt: 1.2%, rhodium: 1.4%, plumbous: 2.2%, tungsten: 0.7%, aluminium: 4.2%, potassium: 2.5%, copper: 0.85%, zinc: 4.52%, rare earth: 2.57%, auxiliary agent: 1.24%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.5%, neodymium: 12.8%, promethium: 8.3%, europium: 4.2%, dysprosium: 3.2%, lutetium: 2.2%, praseodymium: 1.2%, erbium: 4.1%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 12 parts, kaolinite: 3 parts, clay 20 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 820 DEG C, calcine 3 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
The present embodiment is also provided for the preparation method of metallic surface rub resistance coating, and concrete preparation method is as follows:
Step (1): carbon, silicon, scandium, vanadium, nickel, manganese, cobalt, rhodium, lead, tungsten, aluminium, potassium, copper, zinc and ferro element are put into furnace, then after furnace temperature being risen to 668 DEG C, be incubated 2 hours, then temperature is risen to 956 DEG C, put into rare earth and auxiliary agent, stir, be incubated 4 hours, then air cooling to 428 DEG C, then water-cooled is to room temperature;
Step (2): through the refining of LF stove, temperature is increased to 1128 DEG C, insulation 4h, omnidistance nitrogen blowing stirs, and carry out degassed with vacuum degassing furnace, degassing temperature is 826 DEG C, vacuum tightness 44 handkerchief, and pumpdown time is at 4h, and then air cooling is to room temperature;
Step (3): the metal that step (2) obtains is put into ball mill, temperature is increased to 640 DEG C, is incubated 2 hours, then starts ball mill abrasive dust, crosses 40 mesh sieves, then temperature is increased to 725 DEG C, be incubated 1.3 hours, crosses 100 mesh sieves, obtains powder particle B;
Step (4): it is 2mm that the powder particle B in step (3) is sprayed into metallic surface thickness, is then heated to 627 DEG C, be incubated 1.8 hours, then water-cooled is to room temperature, then temperature is increased to 318 DEG C, and be incubated 1.4 hours, air cooling is to room temperature.
embodiment 2
The one that the present embodiment provides is for metallic surface rub resistance coating, and the component of this rub resistance coating is by mass percentage: carbon: 0.05%, silicon: 0.8%, scandium: 2.8%, vanadium: 3.9%, nickel: 9.8%, manganese: 0.8%, cobalt: 1.5%, rhodium: 1.6%, plumbous: 2.4%, tungsten: 0.9%, aluminium: 4.5%, potassium: 2.7%, copper: 0.88%, zinc: 4.56%, rare earth: 2.59%, auxiliary agent: 1.26%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.8%, neodymium: 13.1%, promethium: 8.5%, europium: 4.4%, dysprosium: 3.5%, lutetium: 2.5%, praseodymium: 1.6%, erbium: 4.4%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 15 parts, kaolinite: 5 parts, clay 25 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 830 DEG C, calcine 5 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
The present embodiment is also provided for the preparation method of metallic surface rub resistance coating, and concrete preparation method is as follows:
Step (1): carbon, silicon, scandium, vanadium, nickel, manganese, cobalt, rhodium, lead, tungsten, aluminium, potassium, copper, zinc and ferro element are put into furnace, then after furnace temperature being risen to 665 DEG C, be incubated 1 hour, then temperature is risen to 950 DEG C, put into rare earth and auxiliary agent, stir, be incubated 3 hours, then air cooling to 420 DEG C, then water-cooled is to room temperature;
Step (2): through the refining of LF stove, temperature is increased to 1120 DEG C, insulation 3h, omnidistance nitrogen blowing stirs, and carry out degassed with vacuum degassing furnace, degassing temperature is 820 DEG C, vacuum tightness 43 handkerchief, and pumpdown time is at 3h, and then air cooling is to room temperature;
Step (3): the metal that step (2) obtains is put into ball mill, temperature is increased to 620 DEG C, is incubated 1 hour, then starts ball mill abrasive dust, crosses 40 mesh sieves, then temperature is increased to 720 DEG C, be incubated 1 hour, crosses 100 mesh sieves, obtains powder particle B;
Step (4): it is 1mm that the powder particle B in step (3) is sprayed into metallic surface thickness, is then heated to 620 DEG C, be incubated 1 hour, then water-cooled is to room temperature, then temperature is increased to 310 DEG C, and be incubated 1 hour, air cooling is to room temperature.
embodiment 3
The one that the present embodiment provides is for metallic surface rub resistance coating, and the component of this rub resistance coating is by mass percentage: carbon: 0.04%, silicon: 0.7%, scandium: 2.7%, vanadium: 3.8%, nickel: 9.6%, manganese: 0.7%, cobalt: 1.3%, rhodium: 1.5%, plumbous: 2.3%, tungsten: 0.8%, aluminium: 4.4%, potassium: 2.6%, copper: 0.87%, zinc: 4.54%, rare earth: 2.58%, auxiliary agent: 1.25%, surplus is iron;
Rare earth is by mass percentage: lanthanum: 12.7%, neodymium: 12.9%, promethium: 8.4%, europium: 4.3%, dysprosium: 3.3%, lutetium: 2.4%, praseodymium: 1.5%, erbium: 4.3%, and surplus is samarium;
The component of auxiliary agent is counted by weight: dravite: 14 parts, kaolinite: 4 parts, clay 22 parts;
The preparation method of auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 825 DEG C, calcine 4 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
The present embodiment is also provided for the preparation method of metallic surface rub resistance coating, and concrete preparation method is as follows:
Step (1): carbon, silicon, scandium, vanadium, nickel, manganese, cobalt, rhodium, lead, tungsten, aluminium, potassium, copper, zinc and ferro element are put into furnace, then after furnace temperature being risen to 670 DEG C, be incubated 3 hours, then temperature is risen to 960 DEG C, put into rare earth and auxiliary agent, stir, be incubated 5 hours, then air cooling to 430 DEG C, then water-cooled is to room temperature;
Step (2): through the refining of LF stove, temperature is increased to 1130 DEG C, insulation 5h, omnidistance nitrogen blowing stirs, and carry out degassed with vacuum degassing furnace, degassing temperature is 830 DEG C, vacuum tightness 45 handkerchief, and pumpdown time is at 5h, and then air cooling is to room temperature;
Step (3): the metal that step (2) obtains is put into ball mill, temperature is increased to 650 DEG C, is incubated 3 hours, then starts ball mill abrasive dust, crosses 40 mesh sieves, then temperature is increased to 730 DEG C, be incubated 2 hours, crosses 100 mesh sieves, obtains powder particle B;
Step (4): it is 3mm that the powder particle B in step (3) is sprayed into metallic surface thickness, is then heated to 630 DEG C, be incubated 2 hours, then water-cooled is to room temperature, then temperature is increased to 320 DEG C, and be incubated 2 hours, air cooling is to room temperature.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (5)
1. one kind for metallic surface rub resistance coating, it is characterized in that: the component of this rub resistance coating is by mass percentage: carbon: 0.02-0.05%, silicon: 0.6-0.8%, scandium: 2.5-2.8%, vanadium: 3.7-3.9%, nickel: 9.5-9.8%, manganese: 0.5-0.8%, cobalt: 1.2-1.5%, rhodium: 1.4-1.6%, plumbous: 2.2-2.4%, tungsten: 0.7-0.9%, aluminium: 4.2-4.5%, potassium: 2.5-2.7%, copper: 0.85-0.88%, zinc: 4.52-4.56%, rare earth: 2.57-2.59%, auxiliary agent: 1.24-1.26%, surplus is iron;
Described rare earth is by mass percentage: lanthanum: 12.5-12.8%, neodymium: 12.8-13.1%, promethium: 8.3-8.5%, europium: 4.2-4.4%, dysprosium: 3.2-3.5%, lutetium: 2.2-2.5%, praseodymium: 1.2-1.6%, erbium: 4.1-4.4%, and surplus is samarium;
The component of described auxiliary agent is counted by weight: dravite: 12-15 part, kaolinite: 3-5 part, clay 20-25 part;
The preparation method of described auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 820-830 DEG C, calcining 3-5 hour, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
2. according to claim 1 for metallic surface rub resistance coating, it is characterized in that: the component of this rub resistance coating is by mass percentage: carbon: 0.02%, silicon: 0.6%, scandium: 2.5%, vanadium: 3.7%, nickel: 9.5%, manganese: 0.5%, cobalt: 1.2%, rhodium: 1.4%, plumbous: 2.2%, tungsten: 0.7%, aluminium: 4.2%, potassium: 2.5%, copper: 0.85%, zinc: 4.52%, rare earth: 2.57%, auxiliary agent: 1.24%, surplus is iron;
Described rare earth is by mass percentage: lanthanum: 12.5%, neodymium: 12.8%, promethium: 8.3%, europium: 4.2%, dysprosium: 3.2%, lutetium: 2.2%, praseodymium: 1.2%, erbium: 4.1%, and surplus is samarium;
The component of described auxiliary agent is counted by weight: dravite: 12 parts, kaolinite: 3 parts, clay 20 parts;
The preparation method of described auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 820 DEG C, calcine 3 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
3. according to claim 1 for metallic surface rub resistance coating, it is characterized in that: the component of this rub resistance coating is by mass percentage: carbon: 0.05%, silicon: 0.8%, scandium: 2.8%, vanadium: 3.9%, nickel: 9.8%, manganese: 0.8%, cobalt: 1.5%, rhodium: 1.6%, plumbous: 2.4%, tungsten: 0.9%, aluminium: 4.5%, potassium: 2.7%, copper: 0.88%, zinc: 4.56%, rare earth: 2.59%, auxiliary agent: 1.26%, surplus is iron;
Described rare earth is by mass percentage: lanthanum: 12.8%, neodymium: 13.1%, promethium: 8.5%, europium: 4.4%, dysprosium: 3.5%, lutetium: 2.5%, praseodymium: 1.6%, erbium: 4.4%, and surplus is samarium;
The component of described auxiliary agent is counted by weight: dravite: 15 parts, kaolinite: 5 parts, clay 25 parts;
The preparation method of described auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 830 DEG C, calcine 5 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
4. according to claim 1 for metallic surface rub resistance coating, it is characterized in that: the component of this rub resistance coating is by mass percentage: carbon: 0.04%, silicon: 0.7%, scandium: 2.7%, vanadium: 3.8%, nickel: 9.6%, manganese: 0.7%, cobalt: 1.3%, rhodium: 1.5%, plumbous: 2.3%, tungsten: 0.8%, aluminium: 4.4%, potassium: 2.6%, copper: 0.87%, zinc: 4.54%, rare earth: 2.58%, auxiliary agent: 1.25%, surplus is iron;
Described rare earth is by mass percentage: lanthanum: 12.7%, neodymium: 12.9%, promethium: 8.4%, europium: 4.3%, dysprosium: 3.3%, lutetium: 2.4%, praseodymium: 1.5%, erbium: 4.3%, and surplus is samarium;
The component of described auxiliary agent is counted by weight: dravite: 14 parts, kaolinite: 4 parts, clay 22 parts;
The preparation method of described auxiliary agent is: dravite, kaolinite and clay aluminium are mixed, then ball mill abrasive dust is put into, cross 100 mesh sieves, obtain powder particle A, powder particle A is mixed with the ratio of water in 2:1.5, be heated to 825 DEG C, calcine 4 hours, then air cooling is to room temperature, then puts into ball mill abrasive dust, cross 200 mesh sieves, obtain auxiliary agent.
5. for a preparation method for metallic surface rub resistance coating, it is characterized in that, concrete preparation method is as follows:
Step (1): carbon, silicon, scandium, vanadium, nickel, manganese, cobalt, rhodium, lead, tungsten, aluminium, potassium, copper, zinc and ferro element are put into furnace, then after furnace temperature being risen to 665-670 DEG C, insulation 1-3 hour, then temperature is risen to 950-960 DEG C, put into rare earth and auxiliary agent, stir, insulation 3-5 hour, then air cooling is to 420-430 DEG C, then water-cooled is to room temperature;
Step (2): through the refining of LF stove, temperature is increased to 1120-1130 DEG C, insulation 3-5h, omnidistance nitrogen blowing stirs, and carry out degassed with vacuum degassing furnace, degassing temperature is 820-830 DEG C, vacuum tightness 43-45 handkerchief, and pumpdown time is at 3-5h, and then air cooling is to room temperature;
Step (3): the metal that step (2) obtains is put into ball mill, temperature is increased to 620-650 DEG C, insulation 1-3 hour, then start ball mill abrasive dust, cross 40 mesh sieves, then temperature is increased to 720-730 DEG C, insulation 1-2 hour, crosses 100 mesh sieves, obtains powder particle B;
Step (4): it is 1-3mm that the powder particle B in step (3) is sprayed into metallic surface thickness, is then heated to 620-630 DEG C, insulation 1-2 hour, then water-cooled is to room temperature, again temperature is increased to 310-320 DEG C, insulation 1-2 hour, air cooling is to room temperature.
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