CN107419961A - Key and preparation method thereof made of one kind copper alloy - Google Patents
Key and preparation method thereof made of one kind copper alloy Download PDFInfo
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- CN107419961A CN107419961A CN201710583351.3A CN201710583351A CN107419961A CN 107419961 A CN107419961 A CN 107419961A CN 201710583351 A CN201710583351 A CN 201710583351A CN 107419961 A CN107419961 A CN 107419961A
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- Prior art keywords
- key
- copper alloy
- rolling
- annealing
- alloy
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/26—Use of special materials for keys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The present invention relates to key and preparation method thereof made of one kind copper alloy, belong to Alloy Processing field.Described copper alloy is made up of the component of following mass percent：Zn20 23%, Fe0.05 0.08%, Sn0.08 0.18%, Ni0.01 0.12%, Al0.25 0.5%, La0.03 0.12%, Sc0.03 0.1%, Bi0.03 0.15%, surplus are Cu and inevitable impurity.Copper alloy of the present invention with the addition of nickel, aluminium, tin, improve tensile strength hardness；By adding La, Sc, Bi, the wearability and cutting ability of material are further improved；Rational material compatibility coordinates the annealing in later stage and heat treatment further to improve the wearability and precision of key, improves yield rate and service life.
Description
Technical field
The present invention relates to key and preparation method thereof made of one kind copper alloy, belong to Alloy Processing field.
Background technology
Key is a kind of conventional unlocking tool in people's life, makes the material of key mainly with copper, zinc, aluminium, iron
With other metals.And key made of general brass, because key forming process need to undergo continuous deep stretch, therefore to brass
The plasticity requirements of material are high, simultaneously because true qualities lockmaking product its surface quality will be gone it is higher, it is desirable to its any surface finish, light
It is bright, smooth, therefore it is required that the brass particle diameter of key is smaller.Other key is using frequently also needing to fabulous wearability.
The content of the invention
The defects of present invention is present in prior art, there is provided a kind of precision is high, wearability is good is made of copper alloy
Key.
The above-mentioned purpose of the present invention can be realized by following technical proposal：Key made of one kind copper alloy, it is described
Copper alloy be made up of the component of following mass percent：Zn20-23%, Fe0.05-0.08%, Sn0.08-1.8%,
Ni0.01-0.12%, Al0.25-0.5%, La0.03-0.12%, Sc0.03-0.1%, Bi0.03-0.15% surplus be Cu and
Inevitable impurity.
Preferably, described copper alloy is made up of following components：Described copper alloy by following mass percent group
Divide and form：Zn21-22%, Fe0.06-0.08%, Sn0.1-0.15%, Ni0.05-0.1%, Al0.28-0.35%,
La0.05-0.1%, Sc0.06-0.08%, Bi0.08-0.12%, surplus are Cu and inevitable impurity.
The preparation method of the above-mentioned key made of copper alloy is：
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy as claimed in claim 1 and closed
Ingot base；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 3-5h is then incubated at 580-600 DEG C, is made
Obtain key finished product.
Preferably, the ingot temperature that goes out in hot-rolled process after alloy ingot blank heating is 760-780 DEG C, heat time 4-
6h。
Preferably, the temperature of annealing is 630-650 DEG C, annealing time 2min-5min.
Compared with prior art, nickel, aluminium, tin are with the addition of in the copper alloy used in key of the present invention, improves tensile strength
Hardness；By adding La, Sc, Bi, the cutting ability and wearability of material are improved；Rational composition proportion coordinates the annealing in later stage
Processing and heat treatment further improve the precision and wearability of key, improve yield rate and service life.
Embodiment
It is the specific embodiment of the present invention below, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy and obtain alloy ingot blank；Copper alloy by with
The component of lower percetage by weight is formed：Zn21.5%, Fe0.07%, Sn0.12%, Ni0.08%, Al0.32%, La0.08%,
Sc0.07%, Bi0.10%, surplus are Cu and inevitable impurity；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；Going out after alloy ingot blank heating in hot-rolled process
Ingot temperature is 760 DEG C, heat time 6h；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；The temperature of annealing is 630 DEG C, annealing
Time is 5min；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 5h then is incubated at 580 DEG C, key is made
Finished product.The hardness HV of key finished product is 85, wear extent 0.15g.
Embodiment 2
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy and obtain alloy ingot blank；Copper alloy by with
The component of lower percetage by weight is formed：Zn21-%, Fe0.08%, Sn0.1%, Ni0.1%, Al0.28%, La0.1%,
Sc0.06%, Bi0.12%, surplus are Cu and inevitable impurity；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；Going out after alloy ingot blank heating in hot-rolled process
Ingot temperature is 780 DEG C, heat time 4h；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；The temperature of annealing is 650 DEG C, annealing
Time is 2min；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 3h then is incubated at 600 DEG C, key is made
Finished product.The hardness HV of key finished product is 82, wear extent 0.18g.
Embodiment 3
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy and obtain alloy ingot blank；Copper alloy by with
The component of lower percetage by weight is formed：Zn20%, Fe0.08%, Sn0.08%, Ni0.12%, Al0.25%, La0.12%,
Sc0.03%, Bi0.15% surplus are Cu and inevitable impurity；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；Going out after alloy ingot blank heating in hot-rolled process
Ingot temperature is 775 DEG C, heat time 5h；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；The temperature of annealing is 635 DEG C, annealing
Time is 4min；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 4h then is incubated at 585 DEG C, key is made
Finished product.The hardness HV of key finished product is 86, wear extent 0.20g.
Embodiment 4
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy and obtain alloy ingot blank；Copper alloy by with
The component of lower percetage by weight is formed：Zn23%, Fe0.05%, Sn1.8%, Ni0.01%, Al00.5%, La0.03%,
Sc0.1%, Bi0.03% surplus are Cu and inevitable impurity；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；Going out after alloy ingot blank heating in hot-rolled process
Ingot temperature is 770 DEG C, heat time 5h；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；The temperature of annealing is 640 DEG C, annealing
Time is 3min；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 4h then is incubated at 590 DEG C, key is made
Finished product.The hardness HV of key finished product is 88, wear extent 0.22g.
Comparative example
The key finished product being commonly commercially available in the prior art, the hardness HV of key finished product is 66, wear extent 0.56g.
Copper alloy of the present invention with the addition of nickel, aluminium, tin, improve tensile strength hardness；By adding La, Sc, Bi, further
Improve the wearability and cutting ability of material；Rational material compatibility coordinates the annealing in later stage and heat treatment further to improve
The wearability and precision of key, improve yield rate and service life.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, but simultaneously
Do not deviate by the spirit of the present invention or surmount scope defined in appended claims.
It is skilled to this area although having been made a detailed description to the present invention and being cited some specific embodiments
For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (5)
1. key made of one kind copper alloy, it is characterised in that described copper alloy by following mass percent component structure
Into：Zn20-23%, Fe0.05-0.08%, Sn0.08-0.18%, Ni0.01-0.12%, Al0.25-0.5%, La0.03-
0.12%, Sc0.03-0.1%, Bi0.03-0.15%, surplus are Cu and inevitable impurity.
2. the key according to claim 1 made of copper alloy, it is characterised in that described copper alloy is by following components
Form：Described copper alloy is made up of the component of following mass percent：Zn21-22%, Fe0.06-0.08%, Sn0.1-
0.15%, Ni0.05-0.1%, Al0.28-0.35%, La0.05-0.1%, Sc0.06-0.08%, Bi0.08-0.12%, it is remaining
Measure as Cu and inevitable impurity.
3. a kind of preparation method of key, it is characterised in that described preparation method is：
Founding：Match somebody with somebody to take alloy raw material and be placed on founding in smelting furnace by copper alloy as claimed in claim 1 and obtain alloy pig
Base；
Hot rolling：Hot rolling treatment, which is carried out, after heating alloy ingot blank obtains thick made-up belt；
Cold rolling：The processing of milling face is carried out to thick made-up belt, by its cold-rolling treatment into faciola base after the processing of milling face；
Annealing：Faciola base after cold rolling is carried out continuously annealing；
Rolling：By the faciola base rolling after annealing, it is machined to key semi-finished product；
Heat treatment：By the first Passivation Treatment in passivating solution of key semi-finished product, 3-5h then is incubated at 580-600 DEG C, key is made
Spoon finished product.
4. the preparation method of key according to claim 3, it is characterised in that going out after alloy ingot blank heating in hot-rolled process
Ingot temperature is 760-780 DEG C, heat time 4-6h.
5. the preparation method of key according to claim 3, it is characterised in that the temperature of annealing is 630-650 DEG C, is moved back
The fiery time is 2min-5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583351.3A CN107419961A (en) | 2017-07-18 | 2017-07-18 | Key and preparation method thereof made of one kind copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583351.3A CN107419961A (en) | 2017-07-18 | 2017-07-18 | Key and preparation method thereof made of one kind copper alloy |
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| Publication Number | Publication Date |
|---|---|
| CN107419961A true CN107419961A (en) | 2017-12-01 |
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ID=60430081
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710583351.3A Pending CN107419961A (en) | 2017-07-18 | 2017-07-18 | Key and preparation method thereof made of one kind copper alloy |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164328A (en) * | 1999-10-01 | 2001-06-19 | Dowa Mining Co Ltd | Copper alloy for connector and producing method therefor |
| JP2002285264A (en) * | 2001-03-27 | 2002-10-03 | Ykk Corp | Copper alloy for slide fastener |
| CN101077510A (en) * | 2007-06-08 | 2007-11-28 | 广州铜材厂有限公司 | Process for manufactruing blaster fuse frame copper alloy strip steel rolled stock used for integrate circuit |
| CN102361995A (en) * | 2009-04-24 | 2012-02-22 | 三越金属株式会社 | High-strength copper alloy |
| CN103484718A (en) * | 2013-10-10 | 2014-01-01 | 铜陵金威铜业有限公司 | Lock making copper strip and preparation method thereof |
| CN103757475A (en) * | 2014-01-10 | 2014-04-30 | 滁州学院 | High-strength free-cutting tin brass alloy material and preparation method thereof |
-
2017
- 2017-07-18 CN CN201710583351.3A patent/CN107419961A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164328A (en) * | 1999-10-01 | 2001-06-19 | Dowa Mining Co Ltd | Copper alloy for connector and producing method therefor |
| JP2002285264A (en) * | 2001-03-27 | 2002-10-03 | Ykk Corp | Copper alloy for slide fastener |
| CN101077510A (en) * | 2007-06-08 | 2007-11-28 | 广州铜材厂有限公司 | Process for manufactruing blaster fuse frame copper alloy strip steel rolled stock used for integrate circuit |
| CN102361995A (en) * | 2009-04-24 | 2012-02-22 | 三越金属株式会社 | High-strength copper alloy |
| CN103484718A (en) * | 2013-10-10 | 2014-01-01 | 铜陵金威铜业有限公司 | Lock making copper strip and preparation method thereof |
| CN103757475A (en) * | 2014-01-10 | 2014-04-30 | 滁州学院 | High-strength free-cutting tin brass alloy material and preparation method thereof |
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Application publication date: 20171201 |
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