CN104988368A - Wear-resisting CPU cooling fin and preparation technology thereof - Google Patents

Wear-resisting CPU cooling fin and preparation technology thereof Download PDF

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Publication number
CN104988368A
CN104988368A CN201510285510.2A CN201510285510A CN104988368A CN 104988368 A CN104988368 A CN 104988368A CN 201510285510 A CN201510285510 A CN 201510285510A CN 104988368 A CN104988368 A CN 104988368A
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cooling
cooling fin
radiator element
stove
cpu
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朱冬宏
周金龙
田群
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JIANGSU JINDI ELECTRONIC TECHNOLOGY Co Ltd
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JIANGSU JINDI ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

The invention discloses a wear-resisting CPU cooling fin. The cooling fin is used for a CPU cooler. The cooling fin comprises the following components including Mg, Cr, B, Ti, Zr, Si, N, C, Cu, Mn, Zn, Pb, Bi, Re, rare earth elements, and the balance Al. The rare earth elements include La, Ce, Dy, Ho, Gd, Y, Nd, Yb, Tb and the balance lanthanide ion rare earth. The invention further discloses a preparation technology of the wear-resisting CPU cooling fin. The technology comprises the technological processes of smelting, casting, homogenization, ingot casting and preheating, extrusion, heat treatment, machining, inspection and storage. The preparation technology is simple and easy to implement and low in preparation cost, the obtained cooling fin has the good heat conduction performance, high strength, high machining performance and good abrasion resistance and corrosion resistance, and the service life of the cooling fin is prolonged.

Description

A kind of wear-resisting CPU radiating fin and preparation technology thereof
Technical field
The present invention relates to a kind of electron device, be specifically related to the wear-resisting radiator element in a kind of cpu heat and preparation technology thereof.
Background technology
In various surveying instrument field, general measure device is all by conputer controlled, this avoid the error thought and operate, and measurement terminates more accurate, during conputer controlled, CPU can produce a large amount of heat when work, if do not distributed in time by these heats, gently then causes crashing, heavy then CPU may be burnt, cpu heat is just used to as CPU heat radiation, and the steady running of scatterer to CPU plays conclusive effect, chooses a good scatterer very important during assembling computer.
Usually, the rotating speed of fan is higher, the air quantity that it provides to CPU is larger, convection of air effect will be better, but, high rotating speed can bring heat, and the wearing and tearing of aggravation fan, therefore need to get a balance between, in current scatterer, radiator element material refers to the concrete material that radiator element uses, often kind of its heat conductivility of material is different, arrange from high to low by heat conductivility, silver respectively, copper, aluminium, steel, can be too expensive if but make radiator element with silver, copper material is adopted to make radiator element so general, although aluminium considerably cheaper, but obviously thermal conductivity is just not as copper good (approximately only having 50 percent multiple spot of copper), conventional radiator element material is the alloy of copper and aluminium, the two respectively has its relative merits, the thermal conductivity of copper is good, but price is more expensive, difficulty of processing is higher, weight excessive (a lot of fine copper scatterer has all exceeded the quantitative limitation of CPU counterweight), thermal capacity is less, and be easily oxidized, and fine aluminium is too soft, can not directly use, be all that the aluminium alloy used just can provide enough hardness, and the advantage of aluminium alloy is cheap, lightweight, but thermal conductivity is more far short of what is expected than copper, therefore, the radiator element researched and developed in a kind of cpu heat that can overcome above defect becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of wear-resisting CPU radiating fin and preparation technology thereof are provided, preparation is simple for this, and preparation cost is cheap, and the radiator element prepared has good heat conductivility, intensity is high, processing characteristics is high, wear resistant corrosion resistant, extends the work-ing life of radiator element.
In order to solve above technical problem, the invention provides wear-resisting CPU radiating fin, this radiator element is used in cpu heat, and radiator element comprises following component by mass percentage:
Mg:1.0-1.5%, Cr:0.1-0.5%, B:0.04-0.08%, Ti:0.2-0.3%, Zr:0.08-0.15%, Si:0.2-1.0%, N:0.1-0.15%, C:0.05-0.07%, Cu:0.08-0.15%, Mn:1.0-1.8%, Zn:1-2%, Pb:0.05-0.1%, Bi:0.03-0.08%, Re:0.05-0.10%, rare earth element: 0.10-0.15%, all the other are Al, wherein:
Mg, Al are technical pure Mg and industrial pure Al, and rare earth element comprises following component by mass percentage:
Lanthanum: 10-15%, cerium: 8-10%, dysprosium: 11-14%, holmium: 5-8%, gadolinium: 7-10%, yttrium: 5-8%, neodymium: 7-9%, ytterbium: 3-6%, terbium: 3-6%, all the other are lanthanide rare, and each component sum of above rare earth is 100%.
The present invention have also been devised a kind of preparation technology of wear-resisting CPU radiating fin, and the preparation flow of this CPU radiating fin is: melting-casting-homogenizing-ingot casting preheating-extruding-thermal treatment-mechanical workout-inspection warehouse-in, wherein:
The mixed system of casting mold: make casting mold with quartz sand, water glass and wilkinite for molding material is mixed according to the shape of CPU radiating fin, then casting mold being placed in baker, at 150-200 DEG C, carry out oven dry stand-by;
Melting: the raw material of CPU radiating fin is delivered in crucible type resistance furnace and carry out melting and obtain stock liquid, smelting temperature is 800-950 DEG C, smelting time is 1-3h, in fusion process, add insulating covering agent and refining agent in resistance furnace, after melting terminates, on stock liquid, spreading perlite slag making purification stock liquid also uses high temperature fiber filtering net to skim at once;
Casting: by calm for the stock liquid after skimming 2-4min, then in the casting mold prepared, cast obtains radiator element ingot casting, teeming temperature controls at 700-780 DEG C, pouring speed controls at 45-55kg/s, the duration of pouring is 15-30s, after cast terminates, radiator element ingot casting is incubated 10-12min together with casting mold, then naturally cools to room temperature;
Homogenizing: the radiator element ingot casting obtained is delivered in chamber type electric resistance furnace and is heated to 470-500 DEG C and carries out homogenizing, and be incubated 5-8h, then come out of the stove and first adopt water with the cooling of the speed of 5-7 DEG C/s, then air cooling, adopt water to be chilled to the speed of cooling of 2-4 DEG C/s again, last air cooling is to room temperature;
Extruding: ingot casting is heated to 100-180 DEG C, then deliver to hydropress extruding and obtain cooling fin blank, extrusion molding at container temperature is 400-435 DEG C, extrusion speed is 0.5-0.9m/min;
Thermal treatment: cooling fin blank is heat-treated, concrete operations are:
Annealing: by cooling fin blank stove heat to 450-500 DEG C and blowing out after being incubated 0.5-0.8h, stove is cooled to 280-320 DEG C, opens fire door subsequently and continues slow cooling to 180-210 DEG C of air cooling of coming out of the stove to room temperature;
Quenching: by slow for the cooling fin blank after annealing stove heat to 400-450 DEG C, stove heat uses Water spray cooling fin blank fast cooling after 500-540 DEG C again;
Tempering: by through quenching after cooling fin blank at room temperature again enter stove and stove heat to 180-220 DEG C after be incubated 1-2h after adopt process for cooling to be cooled to room temperature;
Mechanical workout: polish to heat treated cooling fin blank and utilize shot-blasting machine mechanical workout, finally obtains energy radiator element finished product;
Inspection warehouse-in: nondestructive testing is carried out to radiator element finished product, after the assay was approved antirust treatment is carried out to radiator element finished product, then pack warehouse-in.
The technical scheme that the present invention limits further is:
Further, the preparation technology of foregoing wear CPU radiating fin, the insulating covering agent added in melting operation is the NaCl of the 45% and KCl of 55%, and refining agent is C 2cl 6.
The preparation technology of foregoing wear CPU radiating fin, process for cooling in thermal treatment after tempering is specially: adopt water-cooled to be combined with air cooling and cool, first adopt water-cooled, with the rate of cooling of 2-3 DEG C/s, cooling fin blank is chilled to 100-120 DEG C, then air cooling is to 80-95 DEG C, adopt water-cooled, with the rate of cooling of 1-2 DEG C/s, cooling fin blank is chilled to 50-60 DEG C again, last air cooling is to room temperature.
The invention has the beneficial effects as follows:
The solid solution reducing Mg, Si in the present invention contributes to the capacity of heat transmission improving radiator element; Add appropriate B can purify melt, improve the capacity of heat transmission of radiator element, and have certain refining effect; In composition, add Re can play crystal grain thinning, improve the effect of intensity, also have contribution to the raising of heat conductivility;
The interpolation of Mn can reduce homogenising time, and can stop the extruding heat treatment stages grain growth subsequently, alligatoring, adds Mn and silicon can be stoped at boundary neculeation, place brittleness, thus improve tension strength at break; The interpolation of Cu can improve electroconductibility and the machining property of extruded radiating fins.
The hardening capacity adding mainly CPU radiating fin of Cr, significantly improves intensity, hardness and wear resistance, makes to too increase solidity to corrosion and resistance of oxidation.
The present invention on stock liquid spreading perlite to purify stock liquid, perlite is a kind of efficient deslagging agent, even spreading is behind the surface of stock liquid, stir a little and can be agglomerated into rapidly the skull being easy to stock liquid be separated, pure stock liquid can be obtained after pulling down skull, subduction radiator element burning into sand, improve quality, and the cost of perlite itself is low, and not quick-friedly in use procedure not spatter, safe and reliable, easy to use, perlite is pollution-free to stock liquid, without infiltration, do not affect the mechanical property of its Chemical Composition and radiator element, in using, smokeless free from dust and obnoxious flavour pollute, can environment purification, reach and carry out production strictly in line with rules and regulations.
The present invention carries out tempering to cooling fin blank, quenching, namely the over-all properties of the thermal treatment raising product of annealing has hardness and also has certain toughness outward, the determination of thermal treatment temp should to obtain even and tiny austenite crystal for principle, to obtain tiny martensitic stucture after quenching, growing up of austenite crystal is directly proportional to quenching temperature, Water spray product fast cooling is adopted during quenching, and in time temper is carried out to product, the stress produced when can not only eliminate quenching, the tempered martensite of some amount can also be obtained, ensure that the high rigidity of product turn improves the toughness of product simultaneously.
By the processing parameter of new formula and metallurgy and foundry in the present invention, and the measures such as the temperature of suitably raising smelting, reduction teeming temperature and control pouring speed can effectively control casting solidification process, realize grain refining and eliminate casting flaw, ensure that the quality of foundry goods.
Cool after tempering, by the method that water-cooled is combined with air cooling, first with speed of cooling water-cooled faster, then carry out air cooling, finally pass through slower cooling by water again to room temperature, not only can improve the water erosion resistent ability of radiator element, and can make to organize more uniform and stable, seldom there is pore and trachoma, ensure that the corrosion resistance of radiator element, serve beyond thought technique effect.
Appropriate rare earth element is added in instant component, the metallic atomic radius of these rare earth elements is large and rare earth has higher activity, be easy to fill up in its crystal grain and defect, and generate the film that can hinder crystal grain continued growth, thus make grain refining and improve the performance of radiator element, meanwhile, the compound that rare earth element is easy and the element compounds such as oxygen, sulphur generation fusing point is high, can play the effect of purification steel.
Embodiment
embodiment 1
The wear-resisting CPU radiating fin of the one that the present embodiment provides, this radiator element is used in cpu heat, and radiator element comprises following component by mass percentage:
Mg:1.5%, Cr:0.3%, B:0.08%, Ti:0.25%, Zr:0.08%, Si:0.8%, N:0.15%, C:0.06%, Cu:0.08%, Mn:1.5%, Zn:1%, Pb:0.08%, Bi:0.08%, Re:0.08%, rare earth element: 0.15%, all the other are Al, wherein:
Mg, Al are technical pure Mg and industrial pure Al, and rare earth element comprises following component by mass percentage:
Lanthanum: 12%, cerium: 8%, dysprosium: 13%, holmium: 5%, gadolinium: 8%, yttrium: 5%, neodymium: 9%, ytterbium: 4%, terbium: 3%, all the other are lanthanide rare, and each component sum of above rare earth is 100%.
The preparation technology of above-mentioned wear-resisting CPU radiating fin, the preparation flow of this CPU radiating fin is: melting-casting-homogenizing-ingot casting preheating-extruding-thermal treatment-mechanical workout-inspection warehouse-in, wherein:
The mixed system of casting mold: make casting mold with quartz sand, water glass and wilkinite for molding material is mixed according to the shape of CPU radiating fin, then casting mold being placed in baker, at 150 DEG C, carry out oven dry stand-by;
Melting: delivered to by the raw material of CPU radiating fin in crucible type resistance furnace and carry out melting and obtain stock liquid, smelting temperature is 950 DEG C, and smelting time is 2h, adds the NaCl of the insulating covering agent 45% and KCl of 55% and refining agent C in fusion process in resistance furnace 2cl 6, after melting terminates, on stock liquid, spreading perlite slag making purification stock liquid also uses high temperature fiber filtering net to skim at once;
Casting: by calm for the stock liquid after skimming 3min, then in the casting mold prepared, cast obtains radiator element ingot casting, teeming temperature controls at 700 DEG C, pouring speed controls at 45kg/s, the duration of pouring is 30s, after cast terminates, radiator element ingot casting is incubated 11min together with casting mold, then naturally cools to room temperature;
Homogenizing: the radiator element ingot casting obtained is delivered in chamber type electric resistance furnace and is heated to 470 DEG C and carries out homogenizing, and be incubated 5h, then come out of the stove and first adopt water with the cooling of the speed of 6 DEG C/s, then air cooling, then adopt water to be chilled to the speed of cooling of 2 DEG C/s, last air cooling is to room temperature;
Extruding: ingot casting is heated to 150 DEG C, then deliver to hydropress extruding and obtain cooling fin blank, extrusion molding at container temperature is 400 DEG C, extrusion speed is 0.5m/min;
Thermal treatment: cooling fin blank is heat-treated, concrete operations are:
Annealing: by cooling fin blank stove heat to 500 DEG C and blowing out after being incubated 0.6h, stove is cooled to 300 DEG C, opens fire door subsequently and continues slow cooling to 195 DEG C and come out of the stove air cooling to room temperature;
Quenching: by slow for the cooling fin blank after annealing stove heat to 450 DEG C, stove heat uses Water spray cooling fin blank fast cooling after 520 DEG C again;
Tempering: by through quenching after cooling fin blank at room temperature again enter stove and stove heat to 180 DEG C after be incubated 1h after adopt process for cooling to be cooled to room temperature;
Process for cooling is: water-cooled is combined with air cooling and cools, and first adopt water-cooled with the rate of cooling of 2 DEG C/s, cooling fin blank to be chilled to 110 DEG C, then air cooling to 80 DEG C, then adopt water-cooled, with the rate of cooling of 2 DEG C/s, cooling fin blank is chilled to 55 DEG C, last air cooling is to room temperature;
Mechanical workout: polish to heat treated cooling fin blank and utilize shot-blasting machine mechanical workout, finally obtains energy radiator element finished product;
Inspection warehouse-in: nondestructive testing is carried out to radiator element finished product, after the assay was approved antirust treatment is carried out to radiator element finished product, then pack warehouse-in.
embodiment 2
The wear-resisting CPU radiating fin of the one that the present embodiment provides, this radiator element is used in cpu heat, and radiator element comprises following component by mass percentage:
Mg:1.0%, Cr:0.5%, B:0.04%, Ti:0.3%, Zr:0.15%, Si:1.0%, N:0.1%, C:0.07%, Cu:0.15%, Mn:1.8%, Zn:2%, Pb:0.05%, Bi:0.03%, Re:0.10%, rare earth element: 0.10%, all the other are Al, wherein:
Mg, Al are technical pure Mg and industrial pure Al, and rare earth element comprises following component by mass percentage:
Lanthanum: 15%, cerium: 9%, dysprosium: 11%, holmium: 8%, gadolinium: 7%, yttrium: 8%, neodymium: 7%, ytterbium: 3%, terbium: 6%, all the other are lanthanide rare, and each component sum of above rare earth is 100%.
The preparation technology of above-mentioned wear-resisting CPU radiating fin, the preparation flow of this CPU radiating fin is: melting-casting-homogenizing-ingot casting preheating-extruding-thermal treatment-mechanical workout-inspection warehouse-in, wherein:
The mixed system of casting mold: make casting mold with quartz sand, water glass and wilkinite for molding material is mixed according to the shape of CPU radiating fin, then casting mold being placed in baker, at 200 DEG C, carry out oven dry stand-by;
Melting: delivered to by the raw material of CPU radiating fin in crucible type resistance furnace and carry out melting and obtain stock liquid, smelting temperature is 850 DEG C, and smelting time is 1h, adds the NaCl of the insulating covering agent 45% and KCl of 55% and refining agent C in fusion process in resistance furnace 2cl 6, after melting terminates, on stock liquid, spreading perlite slag making purification stock liquid also uses high temperature fiber filtering net to skim at once;
Casting: by calm for the stock liquid after skimming 2min, then in the casting mold prepared, cast obtains radiator element ingot casting, teeming temperature controls at 750 DEG C, pouring speed controls at 50kg/s, the duration of pouring is 15s, after cast terminates, radiator element ingot casting is incubated 10min together with casting mold, then naturally cools to room temperature;
Homogenizing: the radiator element ingot casting obtained is delivered in chamber type electric resistance furnace and is heated to 490 DEG C and carries out homogenizing, and be incubated 8h, then come out of the stove and first adopt water with the cooling of the speed of 5 DEG C/s, then air cooling, then adopt water to be chilled to the speed of cooling of 3 DEG C/s, last air cooling is to room temperature;
Extruding: ingot casting is heated to 100 DEG C, then deliver to hydropress extruding and obtain cooling fin blank, extrusion molding at container temperature is 418 DEG C, extrusion speed is 0.9m/min;
Thermal treatment: cooling fin blank is heat-treated, concrete operations are:
Annealing: by cooling fin blank stove heat to 450 DEG C and blowing out after being incubated 0.8h, stove is cooled to 280 DEG C, opens fire door subsequently and continues slow cooling to 210 DEG C and come out of the stove air cooling to room temperature;
Quenching: by slow for the cooling fin blank after annealing stove heat to 400 DEG C, stove heat uses Water spray cooling fin blank fast cooling after 500 DEG C again;
Tempering: by through quenching after cooling fin blank at room temperature again enter stove and stove heat to 200 DEG C after insulation 2 after adopt process for cooling to be cooled to room temperature;
Process for cooling is: water-cooled is combined with air cooling and cools, and first adopt water-cooled with the rate of cooling of 3 DEG C/s, cooling fin blank to be chilled to 100 DEG C, then air cooling to 95 DEG C, then adopt water-cooled, with the rate of cooling of 1 DEG C/s, cooling fin blank is chilled to 50 DEG C, last air cooling is to room temperature;
Mechanical workout: polish to heat treated cooling fin blank and utilize shot-blasting machine mechanical workout, finally obtains energy radiator element finished product;
Inspection warehouse-in: nondestructive testing is carried out to radiator element finished product, after the assay was approved antirust treatment is carried out to radiator element finished product, then pack warehouse-in.
embodiment 3
The wear-resisting CPU radiating fin of the one that the present embodiment provides, this radiator element is used in cpu heat, and radiator element comprises following component by mass percentage:
Mg:1.2%, Cr:0.1%, B:0.06%, Ti:0.2%, Zr:0.11%, Si:0.2%, N:0.12%, C:0.05%, Cu:0.12%, Mn:1.0%, Zn:1.5%, Pb:0.1%, Bi:0.05%, Re:0.05%, rare earth element: 0.12%, all the other are Al, wherein:
Mg, Al are technical pure Mg and industrial pure Al, and rare earth element comprises following component by mass percentage:
Lanthanum: 10%, cerium: 10%, dysprosium: 14%, holmium: 6%, gadolinium: 10%, yttrium: 6%, neodymium: 8%, ytterbium: 6%, terbium: 5%, all the other are lanthanide rare, and each component sum of above rare earth is 100%.
The preparation technology of above-mentioned wear-resisting CPU radiating fin, the preparation flow of this CPU radiating fin is: melting-casting-homogenizing-ingot casting preheating-extruding-thermal treatment-mechanical workout-inspection warehouse-in, wherein:
The mixed system of casting mold: make casting mold with quartz sand, water glass and wilkinite for molding material is mixed according to the shape of CPU radiating fin, then casting mold being placed in baker, at 180 DEG C, carry out oven dry stand-by;
Melting: delivered to by the raw material of CPU radiating fin in crucible type resistance furnace and carry out melting and obtain stock liquid, smelting temperature is 900 DEG C, and smelting time is 3h, adds the NaCl of the insulating covering agent 45% and KCl of 55% and refining agent C in fusion process in resistance furnace 2cl 6, after melting terminates, on stock liquid, spreading perlite slag making purification stock liquid also uses high temperature fiber filtering net to skim at once;
Casting: by calm for the stock liquid after skimming 4min, then in the casting mold prepared, cast obtains radiator element ingot casting, teeming temperature controls at 780 DEG C, pouring speed controls at 55kg/s, the duration of pouring is 25s, after cast terminates, radiator element ingot casting is incubated 12min together with casting mold, then naturally cools to room temperature;
Homogenizing: the radiator element ingot casting obtained is delivered in chamber type electric resistance furnace and is heated to 500 DEG C and carries out homogenizing, and be incubated 6h, then come out of the stove and first adopt water with the cooling of the speed of 7 DEG C/s, then air cooling, then adopt water to be chilled to the speed of cooling of 4 DEG C/s, last air cooling is to room temperature;
Extruding: ingot casting is heated to 180 DEG C, then deliver to hydropress extruding and obtain cooling fin blank, extrusion molding at container temperature is 435 DEG C, extrusion speed is 0.7m/min;
Thermal treatment: cooling fin blank is heat-treated, concrete operations are:
Annealing: by cooling fin blank stove heat to 480 DEG C and blowing out after being incubated 0.5h, stove is cooled to 320 DEG C, opens fire door subsequently and continues slow cooling to 180 DEG C and come out of the stove air cooling to room temperature;
Quenching: by slow for the cooling fin blank after annealing stove heat to 425 DEG C, stove heat uses Water spray cooling fin blank fast cooling after 540 DEG C again;
Tempering: by through quenching after cooling fin blank at room temperature again enter stove and stove heat to 220 DEG C after be incubated 1.5h after adopt process for cooling to be cooled to room temperature;
Process for cooling is: water-cooled is combined with air cooling and cools, first adopt water-cooled, with the rate of cooling of 2 DEG C/s, cooling fin blank is chilled to 120 DEG C, then air cooling to 90 DEG C, then adopt water-cooled, with the rate of cooling of 1.5 DEG C/s, cooling fin blank is chilled to 60 DEG C, last air cooling is to room temperature;
Mechanical workout: polish to heat treated cooling fin blank and utilize shot-blasting machine mechanical workout, finally obtains energy radiator element finished product;
Inspection warehouse-in: nondestructive testing is carried out to radiator element finished product, after the assay was approved antirust treatment is carried out to radiator element finished product, then pack warehouse-in.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.

Claims (4)

1. a wear-resisting CPU radiating fin, this radiator element is used in cpu heat, and it is characterized in that, described radiator element comprises following component by mass percentage:
Mg:1.0-1.5%, Cr:0.1-0.5%, B:0.04-0.08%, Ti:0.2-0.3%, Zr:0.08-0.15%, Si:0.2-1.0%, N:0.1-0.15%, C:0.05-0.07%, Cu:0.08-0.15%, Mn:1.0-1.8%, Zn:1-2%, Pb:0.05-0.1%, Bi:0.03-0.08%, Re:0.05-0.10%, rare earth element: 0.10-0.15%, all the other are Al, wherein:
Described Mg, Al are technical pure Mg and industrial pure Al, and described rare earth element comprises following component by mass percentage:
Lanthanum: 10-15%, cerium: 8-10%, dysprosium: 11-14%, holmium: 5-8%, gadolinium: 7-10%, yttrium: 5-8%, neodymium: 7-9%, ytterbium: 3-6%, terbium: 3-6%, all the other are lanthanide rare, and each component sum of above rare earth is 100%.
2. the preparation technology of wear-resisting CPU radiating fin as claimed in claim 1, is characterized in that, the preparation flow of this CPU radiating fin is: melting-casting-homogenizing-ingot casting preheating-extruding-thermal treatment-mechanical workout-inspection warehouse-in, wherein:
The mixed system of casting mold: make casting mold with quartz sand, water glass and wilkinite for molding material is mixed according to the shape of CPU radiating fin, then casting mold being placed in baker, at 150-200 DEG C, carry out oven dry stand-by;
Melting: the raw material of CPU radiating fin is delivered in crucible type resistance furnace and carry out melting and obtain stock liquid, smelting temperature is 800-950 DEG C, smelting time is 1-3h, in fusion process, add insulating covering agent and refining agent in resistance furnace, after melting terminates, on stock liquid, spreading perlite slag making purification stock liquid also uses high temperature fiber filtering net to skim at once;
Casting: by calm for the stock liquid after skimming 2-4min, then in the casting mold prepared, cast obtains radiator element ingot casting, teeming temperature controls at 700-780 DEG C, pouring speed controls at 45-55kg/s, the duration of pouring is 15-30s, after cast terminates, radiator element ingot casting is incubated 10-12min together with casting mold, then naturally cools to room temperature;
Homogenizing: the radiator element ingot casting obtained is delivered in chamber type electric resistance furnace and is heated to 470-500 DEG C and carries out homogenizing, and be incubated 5-8h, then come out of the stove and first adopt water with the cooling of the speed of 5-7 DEG C/s, then air cooling, adopt water to be chilled to the speed of cooling of 2-4 DEG C/s again, last air cooling is to room temperature;
Extruding: ingot casting is heated to 100-180 DEG C, then deliver to hydropress extruding and obtain cooling fin blank, extrusion molding at container temperature is 400-435 DEG C, extrusion speed is 0.5-0.9m/min;
Thermal treatment: cooling fin blank is heat-treated, concrete operations are:
Annealing: by cooling fin blank stove heat to 450-500 DEG C and blowing out after being incubated 0.5-0.8h, stove is cooled to 280-320 DEG C, opens fire door subsequently and continues slow cooling to 180-210 DEG C of air cooling of coming out of the stove to room temperature;
Quenching: by slow for the cooling fin blank after annealing stove heat to 400-450 DEG C, stove heat uses Water spray cooling fin blank fast cooling after 500-540 DEG C again;
Tempering: by through quenching after cooling fin blank at room temperature again enter stove and stove heat to 180-220 DEG C after be incubated 1-2h after adopt process for cooling to be cooled to room temperature;
Mechanical workout: polish to heat treated cooling fin blank and utilize shot-blasting machine mechanical workout, finally obtains energy radiator element finished product;
Inspection warehouse-in: nondestructive testing is carried out to radiator element finished product, after the assay was approved antirust treatment is carried out to radiator element finished product, then pack warehouse-in.
3. the preparation technology of wear-resisting CPU radiating fin according to claim 2, is characterized in that: the insulating covering agent added in described melting operation is the NaCl of the 45% and KCl of 55%, and described refining agent is C 2cl 6.
4. the preparation technology of wear-resisting CPU radiating fin according to claim 2, it is characterized in that: the process for cooling in described thermal treatment after tempering is specially: adopt water-cooled to be combined with air cooling and cool, first adopt water-cooled, with the rate of cooling of 2-3 DEG C/s, cooling fin blank is chilled to 100-120 DEG C, then air cooling is to 80-95 DEG C, adopt water-cooled, with the rate of cooling of 1-2 DEG C/s, cooling fin blank is chilled to 50-60 DEG C again, last air cooling is to room temperature.
CN201510285510.2A 2015-05-29 2015-05-29 Wear-resisting CPU cooling fin and preparation technology thereof Pending CN104988368A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106637003A (en) * 2016-12-23 2017-05-10 安徽景昌铝业有限公司 Toughening treatment method of aluminum profile
CN106756273A (en) * 2016-12-14 2017-05-31 苏州富艾姆工业设备有限公司 A kind of preparation method of automobile air-conditioning pipe
CN107099705A (en) * 2017-04-28 2017-08-29 浙江大侠铝业有限公司 High-strength corrosion-resisting aluminium alloy and preparation method thereof
CN107177759A (en) * 2017-06-30 2017-09-19 徐州市耐力高分子科技有限公司 A kind of fire resistant aluminum alloy material
CN107225375A (en) * 2017-06-14 2017-10-03 安徽华昊机械制造有限公司 A kind of corrosion-resistant fin manufacture craft
CN107344284A (en) * 2017-07-12 2017-11-14 重庆钜途机电有限公司 A kind of manufacture method of fin
CN108339350A (en) * 2018-04-19 2018-07-31 镇江市恒升达化工科技有限公司 A kind of urea granulation tower powder/dust reclaiming device of lower resistance
WO2020214750A1 (en) 2019-04-19 2020-10-22 Magna International Inc. Non-heat-treated casting alloys for automotive structural applications
CN114959847A (en) * 2022-05-23 2022-08-30 东莞市巨晟电器有限公司 Electroplating motor shell

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106756273A (en) * 2016-12-14 2017-05-31 苏州富艾姆工业设备有限公司 A kind of preparation method of automobile air-conditioning pipe
CN106637003A (en) * 2016-12-23 2017-05-10 安徽景昌铝业有限公司 Toughening treatment method of aluminum profile
CN107099705A (en) * 2017-04-28 2017-08-29 浙江大侠铝业有限公司 High-strength corrosion-resisting aluminium alloy and preparation method thereof
CN107225375A (en) * 2017-06-14 2017-10-03 安徽华昊机械制造有限公司 A kind of corrosion-resistant fin manufacture craft
CN107177759A (en) * 2017-06-30 2017-09-19 徐州市耐力高分子科技有限公司 A kind of fire resistant aluminum alloy material
CN107344284A (en) * 2017-07-12 2017-11-14 重庆钜途机电有限公司 A kind of manufacture method of fin
CN108339350A (en) * 2018-04-19 2018-07-31 镇江市恒升达化工科技有限公司 A kind of urea granulation tower powder/dust reclaiming device of lower resistance
WO2020214750A1 (en) 2019-04-19 2020-10-22 Magna International Inc. Non-heat-treated casting alloys for automotive structural applications
EP3956488A4 (en) * 2019-04-19 2022-12-21 Magna International Inc Non-heat-treated casting alloys for automotive structural applications
CN114959847A (en) * 2022-05-23 2022-08-30 东莞市巨晟电器有限公司 Electroplating motor shell
CN114959847B (en) * 2022-05-23 2023-12-08 东莞市巨晟电器有限公司 Electroplating motor shell

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Application publication date: 20151021