CN108203802A - A kind of metal heating processing technology - Google Patents
A kind of metal heating processing technology Download PDFInfo
- Publication number
- CN108203802A CN108203802A CN201711472726.5A CN201711472726A CN108203802A CN 108203802 A CN108203802 A CN 108203802A CN 201711472726 A CN201711472726 A CN 201711472726A CN 108203802 A CN108203802 A CN 108203802A
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- China
- Prior art keywords
- metal works
- carburizer
- metal
- diffusion
- quenching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of metal heating processing technologies, include the following steps：A, metal works are cleaned；B, the pre- carburizing of metal works；C, metal works carburizing；D, metal works One Diffusion Process；E, the secondary diffusion of metal works；F, quenching cooling；G, processing of rust removing, the Economization on Energy in Heat Treatment Technique environmental protection that the present invention uses, the metal works being thermally treated resulting in have high rigidity, high intensity, can extend the service life of metal product.
Description
Technical field
The present invention relates to technical field of metal heat treatment, specially a kind of metal heating processing technology.
Background technology
Alloy steel casting gradually substitutes ordinary carbon steel part, is widely used in casting because having many advantages, such as high intensity, high-wearing feature
Field is made, in practical applications, needs to reasonably select intensity, hardness and the toughness of low-alloy steel, existing alloy steel casting heat
Complex treatment process, energy-saving effect unobvious, and can not effectively improve its mechanical performance after handling.
Invention content
The purpose of the present invention is to provide a kind of metal heating processing technology, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides following technical solution：A kind of metal heating processing technology, including following step
Suddenly：
A, metal works are cleaned：Surface of workpiece is subjected to pickling using pickle, is put into clear water rinses 3-5 repeatedly later
Dry 20min-40min is put into 60 DEG C -80 DEG C of baking oven after secondary；
B, the pre- carburizing of metal works：Metal works after cleaning are put into carburizer, carburizer is slowly heated up, temperature-rise period
In constantly by mixed gas, mixed gas is passed through speed as 0.2L-0.3L/h, after carburizer is warming up to 800 DEG C -840 DEG C
Constant temperature 50min-80min carries out pre- carburizing, carbon potential 0.9-1.2；
C, metal works carburizing：Carburizer is heated up later, propane gas is constantly passed through in temperature-rise period, intake is
Carburizer is warming up to 900 DEG C -930 DEG C, later constant temperature 80min-120min by 0.1L/h, carries out deep cementing, carbon potential 0.9-1.2；
D, metal works One Diffusion Process：Carburizer is to slowly warm up to 950 DEG C, and is passed through the mixture of ammonia and ethyl alcohol, is passed through
It measures as 20-50L/h, diffusion time 30min-40min；
E, the secondary diffusion of metal works：Carburizer is to slowly warm up to 980 DEG C again later, and is passed through the mixing of ammonia and ethyl alcohol
Object, intake 40-70L/h, diffusion time 40min-50min complete the diffusion to metal works；
F, quenching cooling：Metal works after diffusion secondary in step E are sent into quenching chamber quenching, are put the workpiece in quenching oil
Slowly cool to 80 DEG C -120 DEG C, cooling time 20min-40min；
G, processing of rust removing：Step F workpiece after cooling are immersed immediately, antirust treatment is carried out in antirust solution, time 3min-
6min completes the heat treatment to metal works.
Preferably, mixed gas of the mixed gas in the step B for methane and ammonia, volume ratio 1:1-3.
Preferably, quenching uses the grade quench oil hardening type of cooling in the step F.
Preferably, the antirust solution in the step G by 20% sodium benzoate, 30% Carbon Dioxide, 20% polyacrylic acid, 20%
Alkali, 10% sodium molybdate composition.
Compared with prior art, the beneficial effects of the invention are as follows：The Economization on Energy in Heat Treatment Technique that the present invention uses is environmentally friendly, at heat
Managing obtained metal works has high rigidity, high intensity, can extend the service life of metal product；It uses in the present invention and oozes in advance
Carbon and deep cementing technique can further improve the wear resistance of metal works；In addition, using diffusion technique twice, it can
The centre hardness of metal works is improved, improves its comprehensive mechanical performance.
Specific embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiments obtained without making creative work belong to the model that the present invention protects
It encloses.
Embodiment one：
A kind of metal heating processing technology, includes the following steps：
A, metal works are cleaned：Surface of workpiece is subjected to pickling using pickle, is put into clear water and rinses repeatedly 3 times later
Dry 20min is put into 60 DEG C of baking oven afterwards；
B, the pre- carburizing of metal works：Metal works after cleaning are put into carburizer, carburizer is slowly heated up, temperature-rise period
In constantly by mixed gas, mixed gas is passed through speed as 0.2L/h, constant temperature 50min after carburizer is warming up to 800 DEG C, into
The pre- carburizing of row, carbon potential 0.9；
C, metal works carburizing：Carburizer is heated up later, propane gas is constantly passed through in temperature-rise period, intake is
Carburizer is warming up to 900 DEG C, later constant temperature 80min by 0.1L/h, carries out deep cementing, carbon potential 0.9；
D, metal works One Diffusion Process：Carburizer is to slowly warm up to 950 DEG C, and is passed through the mixture of ammonia and ethyl alcohol, is passed through
It measures as 20L/h, diffusion time 30min；
E, the secondary diffusion of metal works：Carburizer is to slowly warm up to 980 DEG C again later, and is passed through the mixing of ammonia and ethyl alcohol
Object, intake 40L/h, diffusion time 40min complete the diffusion to metal works；
F, quenching cooling：Metal works after diffusion secondary in step E are sent into quenching chamber quenching, are put the workpiece in quenching oil
Slowly cool to 80 DEG C, cooling time 20min；
G, processing of rust removing：Step F workpiece after cooling are immersed immediately, antirust treatment is carried out in antirust solution, time 3min, i.e.,
Complete the heat treatment to metal works.
In the present embodiment, mixed gas of the mixed gas for methane and ammonia in step B, volume ratio 1:1.
In the present embodiment, quenching is using the grade quench oil hardening type of cooling in step F.
In the present embodiment, antirust solution in step G by 20% sodium benzoate, 30% Carbon Dioxide, 20% polyacrylic acid, 20%
Alkali, 10% sodium molybdate composition.
Embodiment two：
A kind of metal heating processing technology, includes the following steps：
A, metal works are cleaned：Surface of workpiece is subjected to pickling using pickle, is put into clear water and rinses repeatedly 5 times later
Dry 40min is put into 80 DEG C of baking oven afterwards；
B, the pre- carburizing of metal works：Metal works after cleaning are put into carburizer, carburizer is slowly heated up, temperature-rise period
In constantly by mixed gas, mixed gas is passed through speed as 0.3L/h, constant temperature 80min after carburizer is warming up to 840 DEG C, into
The pre- carburizing of row, carbon potential 1.2；
C, metal works carburizing：Carburizer is heated up later, propane gas is constantly passed through in temperature-rise period, intake is
Carburizer is warming up to 930 DEG C, later constant temperature 120min by 0.1L/h, carries out deep cementing, carbon potential 1.2；
D, metal works One Diffusion Process：Carburizer is to slowly warm up to 950 DEG C, and is passed through the mixture of ammonia and ethyl alcohol, is passed through
It measures as 50L/h, diffusion time 40min；
E, the secondary diffusion of metal works：Carburizer is to slowly warm up to 980 DEG C again later, and is passed through the mixing of ammonia and ethyl alcohol
Object, intake 70L/h, diffusion time 50min complete the diffusion to metal works；
F, quenching cooling：Metal works after diffusion secondary in step E are sent into quenching chamber quenching, are put the workpiece in quenching oil
Slowly cool to 120 DEG C, cooling time 40min；
G, processing of rust removing：Step F workpiece after cooling are immersed immediately, antirust treatment is carried out in antirust solution, time 3min-
6min completes the heat treatment to metal works.
In the present embodiment, mixed gas of the mixed gas for methane and ammonia in step B, volume ratio 1:3.
In the present embodiment, quenching is using the grade quench oil hardening type of cooling in step F.
In the present embodiment, antirust solution in step G by 20% sodium benzoate, 30% Carbon Dioxide, 20% polyacrylic acid, 20%
Alkali, 10% sodium molybdate composition.
Embodiment three：
A kind of metal heating processing technology, includes the following steps：
A, metal works are cleaned：Surface of workpiece is subjected to pickling using pickle, is put into clear water and rinses repeatedly 4 times later
Dry 30min is put into 70 DEG C of baking oven afterwards；
B, the pre- carburizing of metal works：Metal works after cleaning are put into carburizer, carburizer is slowly heated up, temperature-rise period
In constantly by mixed gas, mixed gas is passed through speed as 0.25L/h, constant temperature 65min after carburizer is warming up to 820 DEG C,
Carry out pre- carburizing, carbon potential 1；
C, metal works carburizing：Carburizer is heated up later, propane gas is constantly passed through in temperature-rise period, intake is
Carburizer is warming up to 915 DEG C, later constant temperature 100min by 0.1L/h, carries out deep cementing, carbon potential 1；
D, metal works One Diffusion Process：Carburizer is to slowly warm up to 950 DEG C, and is passed through the mixture of ammonia and ethyl alcohol, is passed through
It measures as 35L/h, diffusion time 35min；
E, the secondary diffusion of metal works：Carburizer is to slowly warm up to 980 DEG C again later, and is passed through the mixing of ammonia and ethyl alcohol
Object, intake 55L/h, diffusion time 45min complete the diffusion to metal works；
F, quenching cooling：Metal works after diffusion secondary in step E are sent into quenching chamber quenching, are put the workpiece in quenching oil
Slowly cool to 100 DEG C, cooling time 30min；
G, processing of rust removing：Step F workpiece after cooling are immersed immediately, antirust treatment is carried out in antirust solution, time 5min, i.e.,
Complete the heat treatment to metal works.
In the present embodiment, mixed gas of the mixed gas for methane and ammonia in step B, volume ratio 1:2
In the present embodiment, quenching is using the grade quench oil hardening type of cooling in step F.
In the present embodiment, antirust solution in step G by 20% sodium benzoate, 30% Carbon Dioxide, 20% polyacrylic acid, 20%
Alkali, 10% sodium molybdate composition.
Experimental example：
Centre hardness measurement is carried out using the metal works that various embodiments of the present invention obtain, obtains data such as following table：
| Centre hardness（HRC） | |
| Embodiment one | 38 |
| Embodiment two | 39 |
| Embodiment three | 42 |
In conclusion the Economization on Energy in Heat Treatment Technique environmental protection that the present invention uses, the metal works being thermally treated resulting in have high rigidity, height
Intensity can extend the service life of metal product；Using pre- carburizing and deep cementing technique in the present invention, can further improve
The wear resistance of metal works；In addition, using diffusion technique twice, the centre hardness of metal works can be improved, is improved
Its comprehensive mechanical performance.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of metal heating processing technology, it is characterised in that：Include the following steps：
A, metal works are cleaned：Surface of workpiece is subjected to pickling using pickle, is put into clear water rinses 3-5 repeatedly later
Dry 20min-40min is put into 60 DEG C -80 DEG C of baking oven after secondary；
B, the pre- carburizing of metal works：Metal works after cleaning are put into carburizer, carburizer is slowly heated up, temperature-rise period
In constantly by mixed gas, mixed gas is passed through speed as 0.2L-0.3L/h, after carburizer is warming up to 800 DEG C -840 DEG C
Constant temperature 50min-80min carries out pre- carburizing, carbon potential 0.9-1.2；
C, metal works carburizing：Carburizer is heated up later, propane gas is constantly passed through in temperature-rise period, intake is
Carburizer is warming up to 900 DEG C -930 DEG C, later constant temperature 80min-120min by 0.1L/h, carries out deep cementing, carbon potential 0.9-1.2；
D, metal works One Diffusion Process：Carburizer is to slowly warm up to 950 DEG C, and is passed through the mixture of ammonia and ethyl alcohol, is passed through
It measures as 20-50L/h, diffusion time 30min-40min；
E, the secondary diffusion of metal works：Carburizer is to slowly warm up to 980 DEG C again later, and is passed through the mixing of ammonia and ethyl alcohol
Object, intake 40-70L/h, diffusion time 40min-50min complete the diffusion to metal works；
F, quenching cooling：Metal works after diffusion secondary in step E are sent into quenching chamber quenching, are put the workpiece in quenching oil
Slowly cool to 80 DEG C -120 DEG C, cooling time 20min-40min；
G, processing of rust removing：Step F workpiece after cooling are immersed immediately, antirust treatment is carried out in antirust solution, time 3min-
6min completes the heat treatment to metal works.
2. a kind of metal heating processing technology according to claim 1, it is characterised in that：Mixed gas in the step B
For the mixed gas of methane and ammonia, volume ratio 1:1-3.
3. a kind of metal heating processing technology according to claim 1, it is characterised in that：Quenching, which uses, in the step F divides
The grade quenching oil hardening type of cooling.
4. a kind of metal heating processing technology according to claim 1, it is characterised in that：Antirust solution in the step G by
20% sodium benzoate, 30% Carbon Dioxide, 20% polyacrylic acid, 20% alkali, 10% sodium molybdate composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711472726.5A CN108203802A (en) | 2017-12-29 | 2017-12-29 | A kind of metal heating processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711472726.5A CN108203802A (en) | 2017-12-29 | 2017-12-29 | A kind of metal heating processing technology |
Publications (1)
| Publication Number | Publication Date |
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| CN108203802A true CN108203802A (en) | 2018-06-26 |
Family
ID=62605091
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711472726.5A Pending CN108203802A (en) | 2017-12-29 | 2017-12-29 | A kind of metal heating processing technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055487A (en) * | 2019-05-27 | 2019-07-26 | 鑫光热处理工业(昆山)有限公司 | The exempting from of a kind of electrical apparatus for vehicle use terminal is tempered isothermal carburization process |
| CN115491480A (en) * | 2022-09-15 | 2022-12-20 | 浙江蓝能燃气设备有限公司 | Hydrogen storage bottle type container heat treatment system |
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| CN103589987A (en) * | 2013-12-06 | 2014-02-19 | 龙工（上海）精工液压有限公司 | Heat treatment process of transmission shaft used for plunger pump |
| CN105369260A (en) * | 2015-11-19 | 2016-03-02 | 张家港市广大机械锻造有限公司 | Carburizing heat treatment technique for 8620H gear steel |
| CN106148650A (en) * | 2016-07-01 | 2016-11-23 | 兴化东华齿轮有限公司 | A kind of energy saving and environment friendly Technology for Heating Processing |
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2017
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|---|---|---|---|---|
| CN102373400A (en) * | 2011-10-25 | 2012-03-14 | 哈尔滨汇隆汽车箱桥有限公司 | Heat treatment method of spiral bevel gear of cargo truck on double-row rare earth carburization equipment |
| CN103589987A (en) * | 2013-12-06 | 2014-02-19 | 龙工（上海）精工液压有限公司 | Heat treatment process of transmission shaft used for plunger pump |
| CN105369260A (en) * | 2015-11-19 | 2016-03-02 | 张家港市广大机械锻造有限公司 | Carburizing heat treatment technique for 8620H gear steel |
| CN106148650A (en) * | 2016-07-01 | 2016-11-23 | 兴化东华齿轮有限公司 | A kind of energy saving and environment friendly Technology for Heating Processing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055487A (en) * | 2019-05-27 | 2019-07-26 | 鑫光热处理工业(昆山)有限公司 | The exempting from of a kind of electrical apparatus for vehicle use terminal is tempered isothermal carburization process |
| CN115491480A (en) * | 2022-09-15 | 2022-12-20 | 浙江蓝能燃气设备有限公司 | Hydrogen storage bottle type container heat treatment system |
| CN115491480B (en) * | 2022-09-15 | 2024-01-26 | 浙江蓝能氢能科技股份有限公司 | Hydrogen storage bottle type container heat treatment system |
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Application publication date: 20180626 |