CN106297941A - A kind of preparation method of aluminium alloys for automobile cable - Google Patents
A kind of preparation method of aluminium alloys for automobile cable Download PDFInfo
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- CN106297941A CN106297941A CN201610645260.3A CN201610645260A CN106297941A CN 106297941 A CN106297941 A CN 106297941A CN 201610645260 A CN201610645260 A CN 201610645260A CN 106297941 A CN106297941 A CN 106297941A
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- aluminium
- aluminium alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 20
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 20
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 10
- 150000002910 rare earth metals Chemical class 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 10
- 244000043261 Hevea brasiliensis Species 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 5
- 238000009749 continuous casting Methods 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 5
- 238000007499 fusion processing Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010949 copper Substances 0.000 description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
Abstract
The present invention provides the preparation method of a kind of aluminium alloys for automobile cable, relate to electric wire and manufacture field, a kind of preparation method of aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, it is by percentage to the quality: Fe is 0.4 1.0wt%, Mg is 0.08 0.3wt%, Cu is 0.08 0.4wt%, Sb is 0.05 0.5wt%, V is 0.05 0.01wt%, Sm be 0.08 0.1wt%, remaining be Al and inevitable impurity, the method for the present invention makes the aluminium alloy cable performance prepared more preferable, LP blades, is suitable for automobile and uses.
Description
Technical field
The present invention relates to electric wire and manufacture field, be specifically related to the preparation method of a kind of aluminium alloys for automobile cable.
Background technology
It is owing to copper processing is expensive, heavier, so insulated wire cable conductor wire core uses aluminum material at present at present
Replace copper, and major part uses hard-drawn aluminium wire, become wide with the range writing aluminum alloy material, according to the use of different regions, can
To be used in colliery line, logical line of credit, high ferro line, automobile electric wire, and electromagnetic wire etc., according to using the difference of scene, need
Otherwise same performance, meets the demand used.
On line for cars, aluminium alloy wire, aluminium alloy wire to be ensured has good draftability, also to have good
Good pliability, general aluminium alloy is not easily accomplished, and resisting fatigue is good and bending property is poor.
Summary of the invention
For the deficiencies in the prior art, the invention provides the preparation method of a kind of aluminium alloys for automobile cable so that system
The aluminium alloy cable performance obtained is more preferable, LP blades, is suitable for automobile and uses.
For realizing object above, the present invention is achieved by the following technical programs:
A kind of preparation method of aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, by percentage to the quality
For: Fe be 0.4-1.0wt%, Mg be 0.08-0.3wt%, Cu be 0.08-0.4wt%, Sb be that 0.05-0.5wt%, V are
0.05-0.01wt%, Sm be 0.08-0.1wt%, remaining be A1 and inevitable impurity, comprise the following steps:
1) each component being carried out dispensing, including Fe, Mg, Cu, Sb, V and Sm, and alloy all uses aluminium intermediate alloy, rare earth
Use the form of rare earth intermediate alloy, use the purity of aluminium ingot to be greater than 99.85wt%；
2) aluminium ingot is added smelting furnace is warming up to 720-760 DEG C, be subsequently adding Fe, Mg, Cu, Sb, V and Sm, be warming up to
1200-1250 DEG C, sufficiently melting, be stirred in fusion process, stirring duration is maintained at 20-25min；
3) carry out stokehold elementary analysis, adjust each constituent content in compositing range；
4) add the refining agent of 0.25-0.35wt%, carry out refine, memory slagging-off and degasification, stand 15-35min；
5) reduce the temperature to 600-620 DEG C, put in continuous casting machine and cast, the foundry goods after casting is carried out uniformly
Heat-transformation processes；
6) foundry goods is put into milling train is prepared as aluminium alloy rod；
7) then by step 6) in aluminium alloy rod be drawn into aluminium alloy fine rule, then aluminium alloy fine rule is carried out multiply strand
Close, form aluminium alloy wire harness；
8) by one layer of cable special layer of outer layer covers of aluminium alloy wire harness.
Further, the core composition of this aluminium alloy cable, be by percentage to the quality: Fe is that 0.6-1.0wt%, Mg are
0.12-0.3wt%, Cu be 0.08-0.32wt%, Sb be 0.25-0.45wt%, V be 0.08-0.01wt%, Sm be 0.09-
0.1wt%, remaining be Al and inevitable impurity.
Further, described step 6) include roughing and carefully roll, described roughing temperature is 620-630 DEG C, remembers the most again
Property carefully roll, the described temperature carefully rolled is 550-600 DEG C, then put into after lopping in holding furnace be incubated 120-250 DEG C, keep 12-
14h。
Further, described step 8) before the most stranded after aluminium alloy wire harness be also performed to step back process.
Further, described cable special layer is insulating barrier from inside to outside, steel band armor layer and natural rubber protective layer.
The invention provides the preparation method of a kind of aluminium alloys for automobile cable, present invention employs Fe, Mg, Cu, Sb, V
With Sm component, joint efficiency is high, can the most mutually merge between each component, and Mg can improve rotproofness, be additionally added Fe and
Cu can improve the pull resistance of aluminium alloy, and preparation method is also to improve hot strength and the elongation percentage of aluminium alloy so that aluminum closes
Gold utensil has electric conductivity, pliability, resisting fatigue and the thermostability of excellence, and present invention process is reasonable in design, low cost.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, to the technology in the embodiment of the present invention
Scheme is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention rather than whole
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Embodiment 1:
A kind of preparation method of aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, by percentage to the quality
For: Fe be 0.4wt%, Mg be 0.08wt%, Cu be 0.08wt%, Sb be 0.05wt%, V be that 0.05wt%, Sm are
0.08wt%, remaining be Al and inevitable impurity, comprise the following steps:
1) each component being carried out dispensing, including Fe, Mg, Cu, Sb, V and Sm, and alloy all uses aluminium intermediate alloy, rare earth
Use the form of rare earth intermediate alloy, use the purity of aluminium ingot to be greater than 99.85wt%；
2) aluminium ingot is added smelting furnace is warming up to 720 DEG C, be subsequently adding Fe, Mg, Cu, Sb, V and Sm, be warming up to 1200 DEG C,
Sufficiently melting, be stirred in fusion process, stirring duration is maintained at 20min；
3) carry out stokehold elementary analysis, adjust each constituent content in compositing range；
4) add the refining agent of 0.25wt%, carry out refine, memory slagging-off and degasification, stand 15min；
5) reduce the temperature to 600 DEG C, put in continuous casting machine and cast, the foundry goods after casting is carried out uniform heat-transformation
Process；
6) foundry goods is put into milling train is prepared as aluminium alloy rod；
7) then by step 6) in aluminium alloy rod be drawn into aluminium alloy fine rule, then aluminium alloy fine rule is carried out multiply strand
Close, form aluminium alloy wire harness；
8) by one layer of cable special layer of outer layer covers of aluminium alloy wire harness.
Further, described step 6) include roughing and carefully roll, described roughing temperature is 620 DEG C, and memory is thin the most again
Rolling, the described temperature carefully rolled is 550 DEG C, then puts into after lopping in holding furnace and is incubated 120 DEG C, keeps 12h.
Further, described step 8) before the most stranded after aluminium alloy wire harness be also performed to step back process.
Further, described cable special layer is insulating barrier from inside to outside, steel band armor layer and natural rubber protective layer.
Embodiment 2:
A kind of preparation method of aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, by percentage to the quality
For: Fe be 1.0wt%, Mg be 0.3wt%, Cu be 0.4wt%, Sb be 0.5wt%, V be 0.01wt%, Sm be 0.1wt%, its
Remaining is Al and inevitable impurity, comprises the following steps:
1) each component being carried out dispensing, including Fe, Mg, Cu, Sb, V and Sm, and alloy all uses aluminium intermediate alloy, rare earth
Use the form of rare earth intermediate alloy, use the purity of aluminium ingot to be greater than 99.85wt%；
2) aluminium ingot is added smelting furnace is warming up to 760 DEG C, be subsequently adding Fe, Mg, Cu, Sb, V and Sm, be warming up to 1250 DEG C,
Sufficiently melting, be stirred in fusion process, stirring duration is maintained at 25min；
3) carry out stokehold elementary analysis, adjust each constituent content in compositing range；
4) add the refining agent of 0.35wt%, carry out refine, memory slagging-off and degasification, stand 35min；
5) reduce the temperature to 620 DEG C, put in continuous casting machine and cast, the foundry goods after casting is carried out uniform heat-transformation
Process；
6) foundry goods is put into milling train is prepared as aluminium alloy rod；
7) then by step 6) in aluminium alloy rod be drawn into aluminium alloy fine rule, then aluminium alloy fine rule is carried out multiply strand
Close, form aluminium alloy wire harness；
8) by one layer of cable special layer of outer layer covers of aluminium alloy wire harness.
Further, described step 6) include roughing and carefully roll, described roughing temperature is 630 DEG C, and memory is thin the most again
Rolling, the described temperature carefully rolled is 600 DEG C, then puts into after lopping in holding furnace and is incubated 250 DEG C, keeps 14h.
Further, described step 8) before the most stranded after aluminium alloy wire harness be also performed to step back process.
Further, described cable special layer is insulating barrier from inside to outside, steel band armor layer and natural rubber protective layer.
Embodiment 3
A kind of preparation method of aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, by percentage to the quality
For: Fe be 0.8wt%, Mg be 0.2wt%, Cu be 0.2wt%, Sb be 0.25wt%, V be 0.25wt%, Sm be 0.09wt%,
Remaining is Al and inevitable impurity, comprises the following steps:
1) each component being carried out dispensing, including Fe, Mg, Cu, Sb, V and Sm, and alloy all uses aluminium intermediate alloy, rare earth
Use the form of rare earth intermediate alloy, use the purity of aluminium ingot to be greater than 99.85wt%；
2) aluminium ingot is added smelting furnace is warming up to 740 DEG C, be subsequently adding Fe, Mg, Cu, Sb, V and Sm, be warming up to 1225 DEG C,
Sufficiently melting, be stirred in fusion process, stirring duration is maintained at 22min；
3) carry out stokehold elementary analysis, adjust each constituent content in compositing range；
4) add the refining agent of 0.30wt%, carry out refine, memory slagging-off and degasification, stand 20min；
5) reduce the temperature to 610 DEG C, put in continuous casting machine and cast, the foundry goods after casting is carried out uniform heat-transformation
Process；
6) foundry goods is put into milling train is prepared as aluminium alloy rod；
7) then by step 6) in aluminium alloy rod be drawn into aluminium alloy fine rule, then aluminium alloy fine rule is carried out multiply strand
Close, form aluminium alloy wire harness；
8) by one layer of cable special layer of outer layer covers of aluminium alloy wire harness.
Further, described step 6) include roughing and carefully roll, described roughing temperature is 6250 DEG C, and memory is thin the most again
Rolling, the described temperature carefully rolled is 575 DEG C, then puts into after lopping in holding furnace and is incubated 200 DEG C, keeps 13h.
Further, described step 8) before the most stranded after aluminium alloy wire harness be also performed to step back process.
Further, described cable special layer is insulating barrier from inside to outside, steel band armor layer and natural rubber protective layer.
The invention provides the preparation method of a kind of aluminium alloys for automobile cable, present invention employs Fe, Mg, Cu, Sb, V
With Sm component, joint efficiency is high, can the most mutually merge between each component, and Mg can improve rotproofness, be additionally added Fe and
Cu can improve the pull resistance of aluminium alloy, and preparation method is also to improve hot strength and the elongation percentage of aluminium alloy so that aluminum closes
Gold utensil has electric conductivity, pliability, resisting fatigue and the thermostability of excellence, and present invention process is reasonable in design, low cost.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a preparation method for aluminium alloys for automobile cable, the core composition of this aluminium alloy cable, be by percentage to the quality:
Fe be 0.4-1.0wt%, Mg be 0.08-0.3wt%, Cu be 0.08-0.4wt%, sb be 0.05-0.5wt%, V be 0.05-
0.01wt%, Sm be 0.08-0.1wt%, remaining be Al and inevitable impurity, it is characterised in that comprise the following steps:
1) each component being carried out dispensing, including Fe, Mg, Cu, sb, V and Sm, and alloy all uses aluminium intermediate alloy, and rare earth uses
The form of rare earth intermediate alloy, uses the purity of aluminium ingot to be greater than 99.85wt%；
2) aluminium ingot is added smelting furnace is warming up to 720-760 DEG C, be subsequently adding Fe, Mg, Cu, sb, V and Sm, be warming up to 1200-
1250 DEG C, sufficiently melting, be stirred in fusion process, stirring duration is maintained at 20-25min；
3) carry out stokehold elementary analysis, adjust each constituent content in compositing range；
4) add the refining agent of 0.25-0.35wt%, carry out refine, memory slagging-off and degasification, stand 15-35min；
5) reduce the temperature to 600-620 DEG C, put in continuous casting machine and cast, the foundry goods after casting is carried out uniform heat-transformation
Process；
6) foundry goods is put into milling train is prepared as aluminium alloy rod；
7) then by step 6) in aluminium alloy rod be drawn into aluminium alloy fine rule, then aluminium alloy fine rule is carried out strands,
Form aluminium alloy wire harness；
8) by one layer of cable special layer of outer layer covers of aluminium alloy wire harness.
The preparation method of a kind of aluminium alloys for automobile cable the most as claimed in claim 1, it is characterised in that this aluminium alloy cable
Core composition, be by percentage to the quality: Fe be 0.6-1.0wt%, Mg be 0.12-0.3wt%, Cu be 0.08-
0.32wt%, sb be 0.25-0.45wt%, V be 0.08-0.01wt%, Sm be 0.09-0.1wt%, remaining be Al and can not keeping away
The impurity exempted from.
The preparation method of a kind of aluminium alloys for automobile cable the most as claimed in claim 1, it is characterised in that described step 6) in
Including roughing and carefully rolling, described roughing temperature is 620-630 DEG C, and memory is carefully rolled the most again, and the described temperature carefully rolled is 550-600
DEG C, then put into after lopping in holding furnace and be incubated 120-250 DEG C, keep 12-14h.
The preparation method of a kind of aluminium alloys for automobile cable the most as claimed in claim 1, it is characterised in that described step 8) it
Before stranded after aluminium alloy wire harness be also performed to step back process.
The preparation method of a kind of aluminium alloys for automobile cable the most as claimed in claim 1, it is characterised in that described cable is special
Layer is insulating barrier from inside to outside, steel band armor layer and natural rubber protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645260.3A CN106297941A (en) | 2016-08-09 | 2016-08-09 | A kind of preparation method of aluminium alloys for automobile cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645260.3A CN106297941A (en) | 2016-08-09 | 2016-08-09 | A kind of preparation method of aluminium alloys for automobile cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106297941A true CN106297941A (en) | 2017-01-04 |
Family
ID=57667018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610645260.3A Pending CN106297941A (en) | 2016-08-09 | 2016-08-09 | A kind of preparation method of aluminium alloys for automobile cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106297941A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923908A (en) * | 2010-08-20 | 2010-12-22 | 安徽亚南电缆厂 | Aluminium alloy conductor for automotive wires and manufacturing method thereof |
| CN102978449A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Sb-RE aluminum alloy, and preparation method and power cable thereof |
| CN103886930A (en) * | 2014-03-04 | 2014-06-25 | 安徽海纳电缆集团有限公司 | Formula of aluminium alloy for cable conductor |
-
2016
- 2016-08-09 CN CN201610645260.3A patent/CN106297941A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923908A (en) * | 2010-08-20 | 2010-12-22 | 安徽亚南电缆厂 | Aluminium alloy conductor for automotive wires and manufacturing method thereof |
| CN102978449A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Sb-RE aluminum alloy, and preparation method and power cable thereof |
| CN103886930A (en) * | 2014-03-04 | 2014-06-25 | 安徽海纳电缆集团有限公司 | Formula of aluminium alloy for cable conductor |
Non-Patent Citations (1)
| Title |
|---|
| 实用安全手册编委会: "《实用安全手册》", 28 February 1997, 北京科学技术出版社 * |
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