CN102952976A - Automobile refrigerator boronized aluminum alloy and its preparation technology - Google Patents
Automobile refrigerator boronized aluminum alloy and its preparation technology Download PDFInfo
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- CN102952976A CN102952976A CN2011102429713A CN201110242971A CN102952976A CN 102952976 A CN102952976 A CN 102952976A CN 2011102429713 A CN2011102429713 A CN 2011102429713A CN 201110242971 A CN201110242971 A CN 201110242971A CN 102952976 A CN102952976 A CN 102952976A
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Abstract
The invention relates to an automobile refrigerator boronized aluminum alloy and its preparation technology. The automobile refrigerator boronized aluminum alloy is obtained through processing 0.20-0.35% of Si, 0.60-0.8% of Mg, 0.06-8.0% of B, 0.20% or less of Fe, and the balance Al. The preparation technology comprises the following steps: 1, adding required components to a melting furnace according to mass percentages, and melting to obtain molten aluminum; 2, carrying out extrusion molding of the molten aluminum at an extrusion speed of 50-100mm/s to form an automobile refrigerator boronized aluminum alloy blank, and cooling through water in the extrusion process to obtain the cooled automobile refrigerator boronized aluminum alloy blank; 3, carrying out heat treatment of the automobile refrigerator boronized aluminum alloy blank; and 4, carrying out surface treatment to obtain the automobile refrigerator boronized aluminum alloy. The automobile refrigerator boronized aluminum alloy blank has the characteristics of good heat conduction performance and high electricity conductivity, and can be applied to automobile refrigerator medium exchange devices.
Description
Technical field
The present invention relates to the metallic substance technical field, particularly relate to a kind of refrigerator of vehicle aluminum boride alloy and preparation technology thereof.
Background technology
Refrigerator of vehicle also claims car refrigerator, refers to the refrigerator that can directly use on automobile.Refrigerator of vehicle is popular cooling apparatus of new generation in recent years the world market.Along with the raising of people's people's living standard, automobile enters rapidly common people house, drives to carry out the part that outdoors also become daily life.In order to be convenient for people to also can eat at any time out of doors iced food or beverage, to the also gradually enhancing of demand of refrigerator of vehicle.
A key part of refrigerator of vehicle refrigeration is medium switch wherein, by the medium switch low-temperature receiver is transferred to the refrigerator cavity, and therefore, the heat conductive performance of medium switch directly has influence on the refrigeration performance of refrigerator of vehicle.In the prior art, relatively poor as the heat conductive performance of the material of medium switch, seriously limited the refrigeration performance of refrigerator of vehicle.
So, not enough for prior art, provide that a kind of heat conductive performance is good, the high refrigerator of vehicle of specific conductivity aluminum boride alloy, and preparation technology is to solve very necessity of prior art deficiency.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art part and a kind of refrigerator of vehicle aluminum boride alloy is provided, this refrigerator of vehicle has the advantages that with the aluminum boride alloy heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Above-mentioned purpose of the present invention realizes by following technical measures.
A kind of refrigerator of vehicle aluminum boride alloy, described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.20～0.35%;
Magnesium: 0.60～0.8%;
Boron: 0.06～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Preferably, above-mentioned refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 0.10～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Preferably, above-mentioned refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 3.0～6.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Preferably, above-mentioned refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 4.0～5.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Preferably, above-mentioned refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 4.2～4.8%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Preferably, above-mentioned refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.28%;
Magnesium: 0.7%;
Boron: 4.5%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Another object of the present invention is to avoid the deficiencies in the prior art part that the preparation technology of a kind of refrigerator of vehicle with the aluminum boride alloy is provided, prepared refrigerator of vehicle has the advantages that with the aluminum boride alloy heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Purpose of the present invention realizes by following technical measures.
A kind of preparation technology that above-mentioned refrigerator of vehicle is used the aluminum boride alloy for preparing of the present invention comprises the steps:
Step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid;
Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome;
Step c is heat-treated with aluminum boride alloy idiosome described cooled refrigerator of vehicle;
Described thermal treatment specifically is set to the two levels of thermal processing, specifically at first refrigerator of vehicle---is incubated 1.0 under 180 ℃---2.0 hours with aluminum boride alloy idiosome 150, and then---is incubated 1.5 under 230 ℃---3.0 hours 200;
Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.
Preferably, above-mentioned steps c. heat-treats with aluminum boride alloy idiosome described cooled refrigerator of vehicle;
Described thermal treatment specifically is set to two levels of thermal and processes, and specifically at first refrigerator of vehicle is incubated 1.5 hours with aluminum boride alloy idiosome under 160 ℃, and then 220 ℃ of lower insulations 2.0 hours.
Preferably, above-mentioned steps d is specially the refrigerator of vehicle after the thermal treatment is carried out copper plating treatment with the surface of aluminum boride alloy idiosome.
Another is preferred, and above-mentioned steps d is specially and the refrigerator of vehicle after the thermal treatment is carried out first copper plating treatment with the surface of aluminum boride alloy idiosome carries out zinc-plated processing again.
A kind of refrigerator of vehicle aluminum boride alloy of the present invention is processed by the composition of following mass percent: silicon: 0.20～0.35%; Magnesium: 0.60～0.8%; Boron: 0.06～8.0%; The content of iron: be less than or equal to 0.20%; Its surplus is aluminium.This refrigerator of vehicle has the advantages that with the aluminum boride alloy heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
A kind of preparation technology that above-mentioned refrigerator of vehicle is used the aluminum boride alloy for preparing of the present invention comprises the steps: that step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid; Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome; Step c is heat-treated with aluminum boride alloy idiosome described cooled refrigerator of vehicle; Described thermal treatment specifically is set to the two levels of thermal processing, specifically at first refrigerator of vehicle---is incubated 1.0 under 180 ℃---2.0 hours with aluminum boride alloy idiosome 150, and then---is incubated 1.5 under 230 ℃---3.0 hours 200; Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.The prepared refrigerator of vehicle of this technique has the advantages that with the aluminum boride alloy heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1.
A kind of refrigerator of vehicle aluminum boride alloy is processed by the composition of following mass percent:
Silicon: 0.20～0.35%;
Magnesium: 0.60～0.8%;
Boron: 0.06～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Add boron as boronating agent, boron all is improved effect to heat conductivility and mechanical property, thus limited other on harmful other impurity elements of conductivity on the impact that electric conductivity causes, guarantee finally to obtain the refrigerator of vehicle aluminum boride alloy of high conductivity.The content of boron directly affects heat conductive performance and the specific conductivity of final finished aluminum boride alloy.Therefore, select the content of boron to be set to 0.06～8.0% among the present invention, so that the automobile that finally obtains has the advantages that with the expansion rate alloy heat conductive performance is good, specific conductivity is high, be applicable to as refrigerator of vehicle medium switch.
This refrigerator of vehicle prepares according to following processing step with the aluminum boride alloy:
Step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid;
Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome;
Step c is heat-treated with aluminum boride alloy idiosome cooled refrigerator of vehicle;
This thermal treatment specifically is set to the two levels of thermal processing, specifically: at first refrigerator of vehicle---was incubated 1.0 under 180 ℃---2.0 hours with aluminum boride alloy idiosome 150, and then---was incubated 1.5 under 230 ℃---3.0 hours 200;
Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.Steps d is specially carries out copper plating treatment to the refrigerator of vehicle after the thermal treatment with the surface of aluminum boride alloy idiosome.
Refrigerator of vehicle of the present invention is with extruding, thermal treatment and the surface treatment of aluminum boride alloy from the composition content of original composition to preparation technology, all adopted special setting, prepared refrigerator of vehicle reaches 52 with the specific conductivity of aluminum boride alloy---56%IACS, hardness reaches and is higher than 10Hw, tensile strength is higher than 220.7Mpa, and unit elongation is greater than 15%.In addition, refrigerator of vehicle of the present invention aluminum boride alloy has the advantages that the heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Embodiment 2.
A kind of refrigerator of vehicle aluminum boride alloy, this refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 0.10～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Add boron as boronating agent, boron all is improved effect to heat conductivility and mechanical property, thus limited other on harmful other impurity elements of conductivity on the impact that electric conductivity causes, guarantee finally to obtain the refrigerator of vehicle aluminum boride alloy of high conductivity.The content of boron directly affects heat conductive performance and the specific conductivity of final finished aluminum boride alloy.Therefore, select the content of boron to be set to 0.06～8.0% among the present invention, so that the automobile that finally obtains has the advantages that with the expansion rate alloy heat conductive performance is good, specific conductivity is high, be applicable to as refrigerator of vehicle medium switch.
This refrigerator of vehicle prepares according to following processing step with the aluminum boride alloy:
Step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid;
Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome;
Step c is heat-treated with aluminum boride alloy idiosome cooled refrigerator of vehicle;
This thermal treatment specifically is set to two levels of thermal and processes, and specifically at first refrigerator of vehicle is incubated 1.5 hours with aluminum boride alloy idiosome under 160 ℃, and then 220 ℃ of lower insulations 2.0 hours.
Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.Steps d is specially carries out first copper plating treatment to the refrigerator of vehicle after the thermal treatment with the surface of aluminum boride alloy idiosome, carries out zinc-plated processing again.In order to have better heat conductivility.
Refrigerator of vehicle of the present invention is with extruding, thermal treatment and the surface treatment of aluminum boride alloy from the composition content of original composition to preparation technology, all adopted special setting, prepared refrigerator of vehicle reaches 52 with the specific conductivity of aluminum boride alloy---56%IACS, hardness reaches and is higher than 10Hw, tensile strength is higher than 220.7Mpa, and unit elongation is greater than 15%.In addition, refrigerator of vehicle of the present invention aluminum boride alloy has the advantages that the heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Embodiment 3.
A kind of refrigerator of vehicle aluminum boride alloy, this refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 3.0～6.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Add boron as boronating agent, boron all is improved effect to heat conductivility and mechanical property, thus limited other on harmful other impurity elements of conductivity on the impact that electric conductivity causes, guarantee finally to obtain the refrigerator of vehicle aluminum boride alloy of high conductivity.The content of boron directly affects heat conductive performance and the specific conductivity of final finished aluminum boride alloy.Therefore, select the content of boron to be set to 0.06～8.0% among the present invention, so that the automobile that finally obtains has the advantages that with the expansion rate alloy heat conductive performance is good, specific conductivity is high, be applicable to as refrigerator of vehicle medium switch.
This refrigerator of vehicle prepares according to following processing step with the aluminum boride alloy:
Step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid;
Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome;
Step c is heat-treated with aluminum boride alloy idiosome cooled refrigerator of vehicle;
This thermal treatment specifically is set to the two levels of thermal processing, specifically: at first refrigerator of vehicle---was incubated 1.0 under 180 ℃---2.0 hours with aluminum boride alloy idiosome 150, and then---was incubated 1.5 under 230 ℃---3.0 hours 200;
Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.Steps d is specially carries out first copper plating treatment to the refrigerator of vehicle after the thermal treatment with the surface of aluminum boride alloy idiosome, carries out zinc-plated processing again.In order to have better conductivity.
Refrigerator of vehicle of the present invention is with extruding, thermal treatment and the surface treatment of aluminum boride alloy from the composition content of original composition to preparation technology, all adopted special setting, prepared refrigerator of vehicle reaches 52 with the specific conductivity of aluminum boride alloy---56%IACS, hardness reaches and is higher than 10Hw, tensile strength is higher than 220.7Mpa, and unit elongation is greater than 15%.In addition, refrigerator of vehicle of the present invention aluminum boride alloy has the advantages that the heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Embodiment 4.
A kind of refrigerator of vehicle aluminum boride alloy and preparation technology thereof, other guide is identical with embodiment 1 or 2 or 3, and difference is that component concentration is different, and this refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 4.2～4.8%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Refrigerator of vehicle of the present invention aluminum boride alloy has the advantages that the heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Embodiment 5.
A kind of refrigerator of vehicle aluminum boride alloy and preparation technology thereof, other guide is identical with embodiment 1 or 2 or 3, and difference is that component concentration is different, and this refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.28%;
Magnesium: 0.7%;
Boron: 4.5%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
Refrigerator of vehicle of the present invention aluminum boride alloy has the advantages that the heat conductive performance is good, specific conductivity is high, is applicable to as refrigerator of vehicle medium switch.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although with reference to preferred embodiment the present invention has been done detailed description; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (10)
1. refrigerator of vehicle aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.20～0.35%;
Magnesium: 0.60～0.8%;
Boron: 0.06～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
2. refrigerator of vehicle according to claim 1 aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 0.10～8.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
3. refrigerator of vehicle according to claim 2 aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 3.0～6.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
4. refrigerator of vehicle according to claim 2 aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 4.0～5.0%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
5. refrigerator of vehicle according to claim 2 aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.25～0.30%;
Magnesium: 0.65～0.75%;
Boron: 4.2～4.8%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
6. refrigerator of vehicle according to claim 2 aluminum boride alloy, it is characterized in that: described refrigerator of vehicle processes with the composition of aluminum boride alloy by following mass percent:
Silicon: 0.28%;
Magnesium: 0.7%;
Boron: 4.5%;
The content of iron: be less than or equal to 0.20%;
Its surplus is aluminium.
7. one kind prepares the described refrigerator of vehicle of claim 1 to 6 any one with the preparation technology of aluminum boride alloy, it is characterized in that: comprise the steps:
Step a. adds the smelting furnace fusing with needed composition according to mass percent and forms aluminium liquid;
Step b. forms refrigerator of vehicle with aluminum boride alloy idiosome with the aluminium hydraulic extrusion moulding under the extrusion speed of 50-100mm/s, cool off by water-cooling pattern in the extrusion process, obtains cooled refrigerator of vehicle aluminum boride alloy idiosome;
Step c is heat-treated with aluminum boride alloy idiosome described cooled refrigerator of vehicle;
Described thermal treatment specifically is set to the two levels of thermal processing, specifically at first refrigerator of vehicle---is incubated 1.0 under 180 ℃---2.0 hours with aluminum boride alloy idiosome 150, and then---is incubated 1.5 under 230 ℃---3.0 hours 200;
Steps d. the refrigerator of vehicle after the thermal treatment is carried out surface treatment with aluminum boride alloy idiosome, obtain finished product refrigerator of vehicle aluminum boride alloy.
8. refrigerator of vehicle according to claim 7 is characterized in that with the preparation technology of aluminum boride alloy:
Described step c is heat-treated with aluminum boride alloy idiosome described cooled refrigerator of vehicle;
Described thermal treatment specifically is set to two levels of thermal and processes, and specifically at first refrigerator of vehicle is incubated 1.5 hours with aluminum boride alloy idiosome under 160 ℃, and then 220 ℃ of lower insulations 2.0 hours.
9. refrigerator of vehicle according to claim 7 is with the preparation technology of aluminum boride alloy, and it is characterized in that: described steps d is specially carries out copper plating treatment to the refrigerator of vehicle after the thermal treatment with the surface of aluminum boride alloy idiosome.
10. refrigerator of vehicle according to claim 7 is characterized in that with the preparation technology of aluminum boride alloy: described steps d is specially carries out first copper plating treatment to the refrigerator of vehicle after the thermal treatment with the surface of aluminum boride alloy idiosome and carries out zinc-plated processing again.
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|---|---|
| CN102952976B (en) | 2015-02-25 |
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