CN108866464A - A kind of brass part heat treatment process - Google Patents
A kind of brass part heat treatment process Download PDFInfo
- Publication number
- CN108866464A CN108866464A CN201811036432.2A CN201811036432A CN108866464A CN 108866464 A CN108866464 A CN 108866464A CN 201811036432 A CN201811036432 A CN 201811036432A CN 108866464 A CN108866464 A CN 108866464A
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- Prior art keywords
- heat
- furnace
- brass part
- brass
- temperature
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- 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of brass part heat treatment process, mainly include the following steps that：(1) shove charge；(2) heat, 120 ± 15min of heating time, 300 ± 30 DEG C of heating temperature；(3) keep the temperature, 120 ± 15min of soaking time, 300 ± 30 DEG C of holding temperature；(4) cool down, be cooled to 80 DEG C ± 5 DEG C with furnace, temperature fall time is 120 ± 15min, after be air-cooled to room temperature.The present invention uses thermal processing equipment of the natural gas heat-treatment furnace as brass part, energy conservation and environmental protection, and the brass part obtained after shove charge, heating, heat preservation and this cooling four heat treatment steps, the stress effectively eliminated in process is concentrated, improve the anti-fatigue performance and ductility of brass part, mechanical property is enhanced, to improve the service life of brass part.
Description
Technical field
The invention patent relates to a kind of part heat treatment process more particularly to a kind of raising brass part service life, enhancing Huang
The heat treatment process that stress is concentrated after the mechanical property and removal brass part processing of copper part.
Background technique
Heat treatment process is one of the important process in machine-building, it is primarily referred to as part being placed on certain Jie
It is heated to suitable temperature in matter, and keeps a period of time at such a temperature, then one kind cooling using suitable cooling velocity
Technique.In heat treatment process, under the action of heating, heat preservation, cooling, the structure of metal parts changes, to change
Latent defect of the kind part in molding, process, improves the mechanical property of part, improves part service life.
Traditional heat treatment process is applied to steel more, such as the 42CrMoE heat of invention disclosed patent CN101368275A
Treatment process.The heat treatment process research of the parts such as other metals, particularly brass is almost absent.Brass material easily adds because of it
Work performance is widely used, and especially in copper valve industry, brass is the main raw material(s) of copper valve, and valve is as pipeline pressure-bearing
Part has higher requirement to the performance of product, and water-supply systems require copper valve pressure-bearing in 2.5Mpa or more as, therefore
Brass part is heat-treated to improve its performance be very it is necessary to.
Summary of the invention
The technical problem to be solved by the present invention lies in overcoming the defects of the prior art and provide it is a kind of can improve the service life, increase
The brass part heat treatment process that stress is concentrated after strong mechanical property and removal processing.
Technical problem of the invention is achieved through the following technical solutions：
A kind of brass part heat treatment process, includes the following steps：
(1) brass part to be heated is first sequentially placed on partition by shove charge, then the partition for being placed with brass part is put
Enter to be heat-treated in frame, finally the heat treatment frame is transmitted in heat-treatment furnace；
(2) heat, 300 ± 30 DEG C are heated in heat-treatment furnace, heating time is 120 ± 15min；
(3) keep the temperature, for heat-treatment furnace inside holding to 300 ± 30 DEG C, soaking time is 120 ± 15min；
(4) cool down, be cooled to 80 DEG C ± 5 DEG C with furnace, temperature fall time is 120 ± 15min, finally removes brass part and is heat-treated
Furnace is air-cooled to room temperature.
The step (1) in brass part put and need to reserve gap, avoid accumulating, it is ensured that brass part is in heat-treatment furnace
Interior uniformity of temperature profile.
The step (4) in using with furnace cooling down, completely cut off outside air in the cooling procedure.
The heat-treatment furnace is natural gas heat-treatment furnace, which has needed for heating furnace, cooling furnace, disengaging
Transmission track and intelligent temperature control system.
The step (1) in heat treatment frame be placed on the transmission track of heat-treatment furnace, then will be hot by the transmission track
Processing block is transmitted in heat-treatment furnace.
Temperature heating, heat preservation and cooling rate and time in the intelligent temperature control system control heat-treatment furnace.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is using natural gas heat-treatment furnace as brass zero
The thermal processing equipment of part, energy conservation and environmental protection；And it is obtained after shove charge, heating, heat preservation and this cooling four heat treatment steps
Brass part, effectively eliminate stress in process and concentrate, improve the anti-fatigue performance and ductility of brass part
Can, mechanical property is enhanced, to improve the service life of brass part.
Detailed description of the invention
Fig. 1 is the temperature profile of heat treatment process of the present invention.
Specific embodiment
It will elaborate again by above-mentioned attached drawing to the embodiment of the present invention below.
A kind of brass part heat treatment process, as shown in Figure 1, having related generally to a kind of be heat-treated brass part
Technique comprising following steps：
(1) brass part to be heated is first sequentially placed on partition by shove charge, then the partition for being placed with brass part is put
Enter to be heat-treated in frame, finally the heat treatment frame is transmitted in heat-treatment furnace；Wherein, brass part putting on partition need to be stayed
Gap out avoids accumulating, to ensure the uniformity of temperature profile of brass part in the heat treatment furnace；Meanwhile if in heat treatment frame
The partition being put into has multilayer, then also needs to reserve gap between adjacent upper and lower level partition；
(2) heat, 300 ± 30 DEG C are heated in heat-treatment furnace, heating time is 120 ± 15min；
(3) keep the temperature, for heat-treatment furnace inside holding to 300 ± 30 DEG C, soaking time is 120 ± 15min；
(4) cool down, be cooled to 80 DEG C ± 5 DEG C with furnace, temperature fall time is 120 ± 15min, completely cuts off outside air in the cooling procedure；
(5) brass part removal heat-treatment furnace is finally air-cooled to room temperature.
Heat-treatment furnace involved in above-mentioned heat treatment process step is natural gas heat-treatment furnace, which has heating
Transmission track needed for furnace, cooling furnace, disengaging and intelligent temperature control system；Therefore, step (1) in heat treatment frame can be sequentially placed
It is sequentially transmitted in heat-treatment furnace on the transmission track of heat-treatment furnace, then by the transmission track by frame is heat-treated；And intelligent temperature
Control system can control temperature heating, heat preservation and cooling rate and time in heat-treatment furnace.
Detailed Jie is carried out to this brass part heat treatment process of the invention by two specific embodiments again below
It continues and describes, to better understand the present invention, but following embodiments are not intended to limit protection scope of the present invention.
Embodiment 1
Brass gate valve valve body, material HPb59-1, valve body piece carry out hot place after hot-forging forming, machined threads technique
Reason.
Steps are as follows for heat treatment process：
(1) shove charge, part are first successively placed on partition, are placed into heat treatment frame, and natural gas heat treatment is finally sequentially transmitted
In furnace；
(2) heat, heating time 115min, heating temperature is 275 ± 5 DEG C；
(3) keep the temperature, soaking time 130min, holding temperature is 275 ± 5 DEG C；
(4) cool down, part is cooling in the cooling furnace of natural gas heat-treatment furnace, cooling time 110min, it is cooling after temperature 70 C；
(5) part is placed air-cooled after taking out.
Embodiment 2
Brass stop valve body, material CW602N, valve body piece carry out hot place after hot-forging forming, machined threads technique
Reason.
Steps are as follows for heat treatment process：
(1) shove charge, part are first successively placed on partition, are placed into heat treatment frame, and natural gas heat treatment is finally sequentially transmitted
In furnace；
(2) heat, heating time 120min, heating temperature is 280 ± 5 DEG C；
(3) keep the temperature, soaking time 130min, holding temperature is 280 ± 5 DEG C；
(4) cool down, part is cooling in the cooling furnace of natural gas heat-treatment furnace, cooling time 130min, it is cooling after 85 DEG C of temperature；
(5) part is placed air-cooled after taking out.
By carrying out Mechanics Performance Testing, the brass part of above-mentioned two embodiment processing to the brass part after heat treatment
Meet technique requirement, specific testing result is shown in Table 1.
Table 1, the valve body mechanical properties test result of heat treatment of the embodiment of the present invention
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is not restricted to
Particular embodiments described above.To those skilled in the art, equivalent modifications and substitution that any couple of present invention carries out
Also all among scope of the invention.Therefore, made equal transformation and modification without departing from the spirit and scope of the invention,
It all should be contained within the scope of the invention.
Claims (6)
1. a kind of brass part heat treatment process, it is characterised in that include the following steps：
(1) brass part to be heated is first sequentially placed on partition by shove charge, then the partition for being placed with brass part is put
Enter to be heat-treated in frame, finally the heat treatment frame is transmitted in heat-treatment furnace；
(2) heat, 300 ± 30 DEG C are heated in heat-treatment furnace, heating time is 120 ± 15min；
(3) keep the temperature, for heat-treatment furnace inside holding to 300 ± 30 DEG C, soaking time is 120 ± 15min；
(4) cool down, be cooled to 80 DEG C ± 5 DEG C with furnace, temperature fall time is 120 ± 15min, finally removes brass part and is heat-treated
Furnace is air-cooled to room temperature.
2. a kind of brass part heat treatment process according to claim 1, it is characterised in that the step (1) in brass
Placing part need to reserve gap, avoid accumulating, it is ensured that the uniformity of temperature profile of brass part in the heat treatment furnace.
3. a kind of brass part heat treatment process according to claim 1, it is characterised in that the step is (4) middle to be used
With furnace cooling down, completely cut off outside air in the cooling procedure.
4. a kind of brass part heat treatment process according to claim 1, it is characterised in that the heat-treatment furnace is day
Right gas heat-treatment furnace, transmission track and intelligent temperature control system needed for which has heating furnace, cooling furnace, disengaging.
5. a kind of brass part heat treatment process according to claim 4, it is characterised in that the step (1) in heat
Processing block is placed on the transmission track of heat-treatment furnace, then is transmitted in heat-treatment furnace by the transmission track by frame is heat-treated.
6. a kind of brass part heat treatment process according to claim 4, it is characterised in that the intelligent temperature control system
Control temperature heating, heat preservation and cooling rate and the time in heat-treatment furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036432.2A CN108866464A (en) | 2018-09-06 | 2018-09-06 | A kind of brass part heat treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036432.2A CN108866464A (en) | 2018-09-06 | 2018-09-06 | A kind of brass part heat treatment process |
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| Publication Number | Publication Date |
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| CN108866464A true CN108866464A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036432.2A Pending CN108866464A (en) | 2018-09-06 | 2018-09-06 | A kind of brass part heat treatment process |
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| CN (1) | CN108866464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794569A (en) * | 2019-01-17 | 2019-05-24 | 宁波埃美柯铜阀门有限公司 | A kind of brass water nozzle hot forging of valve body bends molding production technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831597A (en) * | 2014-04-01 | 2014-06-04 | 台州市中奥特种设备检测技术服务有限公司 | Copper alloy valve forging production processing technique |
-
2018
- 2018-09-06 CN CN201811036432.2A patent/CN108866464A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831597A (en) * | 2014-04-01 | 2014-06-04 | 台州市中奥特种设备检测技术服务有限公司 | Copper alloy valve forging production processing technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794569A (en) * | 2019-01-17 | 2019-05-24 | 宁波埃美柯铜阀门有限公司 | A kind of brass water nozzle hot forging of valve body bends molding production technology |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20181123 |