CN109055670A - SCM435H incudes hardening and tempering process - Google Patents
SCM435H incudes hardening and tempering process Download PDFInfo
- Publication number
- CN109055670A CN109055670A CN201811061676.6A CN201811061676A CN109055670A CN 109055670 A CN109055670 A CN 109055670A CN 201811061676 A CN201811061676 A CN 201811061676A CN 109055670 A CN109055670 A CN 109055670A
- Authority
- CN
- China
- Prior art keywords
- rod iron
- hardening
- tempering
- scm435h
- incudes
- 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.)
- Pending
Links
- 238000005496 tempering Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910000754 Wrought iron Inorganic materials 0.000 claims abstract description 104
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 230000006698 induction Effects 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims description 28
- 230000000171 quenching effect Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 12
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to rolled steel bar technical field of heat treatment, are related to SCM435H induction hardening and tempering process.Using rod iron list branch induction diathermic heating furnace, single branch temperature control cooling system, the rod iron hardness produced and metallographic structure are uniform, and mechanical property is consistent, and deformation is micro-, and the reserved small Lathe quantity of size quantity of raw material is small, reduce cost and waste for following process type enterprise.By the control method of rod iron list branch induction heating hardening and tempering process, solve the problems, such as that rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanical property is inconsistent, deformation is big, Lathe quantity is big.
Description
Technical field
The present invention relates to rolled steel bar technical field of heat treatment, incude hardening and tempering process in particular to SCM435H.
Background technique
Traditional heat treatment heating means and cooling means, the hardness of material, metallographic structure, mechanical property after production, respectively
Item performance indicator dispersion degree is big and deformation is difficult to control, therefore the unstable quality of heat treatment, after material need to be straightened correction after deformation
Turning again, need to increase alignment correction, raw material reserve size quantity cause Lathe quantity big greatly, increase manpower and material resources cost and original
The waste of material.
Therefore it provides a kind of thermal effectiveness it is good SCM435H induction hardening and tempering process become those skilled in the art wanted
The important technological problems of solution.
Summary of the invention
The purpose of the present invention is to provide a kind of SCM435H to incude hardening and tempering process, to alleviate heat treatment effect in the prior art
The technical problem of fruit difference.
The embodiment of the invention provides a kind of SCM435H to incude hardening and tempering process, comprising:
Normalizing is carried out to rod iron in the range of 900-920 DEG C using induction hardening and tempering furnace, rod iron is in induction hardening and tempering furnace
Transmission speed is controlled in 4-6m/min；
Cooling by incuding quenched cooling device after induction hardening and tempering furnace discharge, rod iron temperature is controlled at 140-160 DEG C,
And hardness is not less than 48HRC after rod iron quenching；
Rod iron is tempered by incuding hardening and tempering furnace, tempering temperature controls in the range of 740-750 degree, and rod iron exists
The transmission speed incuded in hardening and tempering furnace is controlled in 4-6m/min；
After induction tempering, so that material is completed natural cooling by industrial cold bed, the hardness of rod iron 240-280HB it
Between.
The first possible embodiment provided in an embodiment of the present invention, wherein cooling by incuding quenched cooling device
After rod iron, there is martensite in rod iron material metallographic structure.
Second of possible embodiment provided in an embodiment of the present invention, wherein rod iron is heat-treated in induction hardening and tempering furnace
When be in rotation status.
The third possible embodiment provided in an embodiment of the present invention, wherein the rotation speed of the rod iron is in 80-
100r/min。
4th kind of possible embodiment provided in an embodiment of the present invention, wherein rod iron carries out nature on industrial cold bed
Rotation status is in when cooling.
5th kind of possible embodiment provided in an embodiment of the present invention, wherein the rotation speed of the rod iron is in 80-
100r/min。
6th kind of possible embodiment provided in an embodiment of the present invention, wherein normalizing temperature is 910 DEG C.
7th kind of possible embodiment provided in an embodiment of the present invention, wherein hardness is in 48-60HRC after rod iron quenching
Between.
8th kind of possible embodiment provided in an embodiment of the present invention, wherein hardness is in 50-55HRC after rod iron quenching
Between.
9th kind of possible embodiment provided in an embodiment of the present invention, wherein the rod iron hardness after heat treatment is in 250-
Between 260HB.
The utility model has the advantages that
The embodiment of the invention provides a kind of SCM435H to incude hardening and tempering process, comprising: using induction hardening and tempering furnace in 900-
Normalizing is carried out to rod iron in the range of 920 degree, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；From sense
Cooling by incuding quenched cooling device after answering hardening and tempering furnace to be discharged, rod iron temperature is controlled in 140-160 degree, and after rod iron quenching
Hardness is not less than 48HRC；Rod iron is tempered by incuding hardening and tempering furnace, tempering temperature controls the range in 740-750 degree
Interior, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；After induction tempering, material is made by industrial cold bed
Natural cooling is completed, the hardness of rod iron is between 240-280HB.Using rod iron list branch induction diathermic heating furnace, single branch temperature control is cold
But system, the rod iron hardness produced and metallographic structure are uniform, and mechanical property is consistent, deform it is micro- it is subsequent do not need alignment correction at
Reason, the reserved small Lathe quantity of size quantity of raw material is small, reduces cost and waste for following process type enterprise.Pass through rod iron list branch sense
The control method of hardening and tempering process should be heated, solution rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanical property
Problem inconsistent, deformation is big, Lathe quantity is big.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the cooling characteristics C curve that Fig. 1 is SCM435H provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
With reference to shown in Fig. 1:
The embodiment of the invention provides a kind of SCM435H to incude hardening and tempering process, comprising: using induction hardening and tempering furnace in 900-
Normalizing is carried out to rod iron in the range of 920 DEG C, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；From sense
Cooling by incuding quenched cooling device after answering hardening and tempering furnace to be discharged, rod iron temperature is controlled at 140-160 DEG C, and after rod iron quenching
Hardness is not less than 48HRC；Rod iron is tempered by incuding hardening and tempering furnace, tempering temperature controls the range in 740-750 degree
Interior, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；After induction tempering, material is made by industrial cold bed
Natural cooling is completed, the hardness of rod iron is between 240-280HB.
The embodiment of the invention provides a kind of SCM435H to incude hardening and tempering process, comprising: using induction hardening and tempering furnace in 900-
Normalizing is carried out to rod iron in the range of 920 DEG C, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；From sense
Cooling by incuding quenched cooling device after answering hardening and tempering furnace to be discharged, rod iron temperature is controlled at 140-160 DEG C, and after rod iron quenching
Hardness is not less than 48HRC；Rod iron is tempered by incuding hardening and tempering furnace, range of the tempering temperature control at 740-750 DEG C
Interior, transmission speed of the rod iron in induction hardening and tempering furnace is controlled in 4-6m/min；After induction tempering, material is made by industrial cold bed
Natural cooling is completed, the hardness of rod iron is between 240-280HB.Using rod iron list branch induction diathermic heating furnace, single branch temperature control is cold
But system, the rod iron hardness produced and metallographic structure are uniform, and mechanical property is consistent, deform it is micro- it is subsequent do not need alignment correction at
Reason, the reserved small Lathe quantity of size quantity of raw material is small, reduces cost and waste for following process type enterprise.Pass through rod iron list branch sense
The control method of hardening and tempering process should be heated, solution rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanical property
Problem inconsistent, deformation is big, Lathe quantity is big.
By the structural alloy steel series minor diameter material to SCM435H, using the composite heat treating process of induction normalizing,
By incude normalizing, come realize heat treatment after material hardness 240-280HB range.
Specifically, multiple induction hardening and tempering furnaces are stitched together to form the line of induction, rod iron enters from one end, arranges from the other end
Out, it is heated in the line of induction by controlling the speed of rod iron to complete rod iron, it is convenient and efficient.Wherein, multiple induction hardening and tempering furnaces
The induction line length to be formed that is stitched together is 40 meters.
Wherein, when being cooled down after steel rod tempering, cooling component can carry out 360 degree of coolings to rod iron, make rod iron
Cooling is more uniform, improves rod iron metallographic quality after cooling.
Specifically, incuding quenched cooling device includes the cooling water jets of 360 ° of quenchings and the cooling water jets of 180 ° of quenchings,
The cooling water jet of 360 ° of quenchings includes toroidal frame ontology and first spray head, and toroidal frame body interior is provided with water jet, the first spray
Head cooperates with water jet, and the first fountain head connect with high-pressure water tank, and first spray head can be by high pressure water injection water spray when work
Mouthful, multiple water jets that toroidal frame inner body wall is then arranged in carry out quenching cooling to rod iron ontology with 360 degree of direction, reach
To quenching non-blind area, no soft spots, without soft band.
Wherein, the axis extended line of water jet passes through the axle center of rod iron ontology, it is ensured that the cooling water of ejection can be to rod iron
Ontology carries out cooling operations.
Moreover, being provided with the cooling water jet of semicircle quenching and the cooling spray of 180 ° of quenchings after the cooling water jet of 360 ° of quenchings
Hydrophone, the cooling water jet of 360 ° of quenchings carry out quenching cooling to rod iron ontology, then quench cooling water jet pair by semicircle
Rod iron ontology carries out acceleration cooling, carries out cooling holding to rod iron ontology finally by the cooling water jet of 180 ° of quenchings, it is ensured that steel
The quenched Light deformation of stick ontology is bent indeformable effect after reaching quenching, is convenient for following process and final mass.
It should be pointed out that cooling down by 360 ° of quenchings to single rod iron ontology, make its hardness, metallographic structure, mechanics
Performance is uniform, and scattered error is small.
It needs, it is noted that rod iron ontology can keep rotating in advancement, to ensure the uniform of quenching.
Wherein, 360 ° of spray faces for quenching cooling water jet are rounded, carry out to rod iron ontology comprehensively uniformly cooling.
In the optinal plan of the present embodiment, after incuding the cooling rod iron of quenched cooling device, rod iron material metallographic structure
In there is martensite.
In the optinal plan of the present embodiment, rod iron is in rotation status when incuding and being heat-treated in hardening and tempering furnace.
In the optinal plan of the present embodiment, the rotation speed of rod iron is in 80-100r/min.
In the optinal plan of the present embodiment, rod iron is in rotation status when carrying out natural cooling on industrial cold bed.
In the optinal plan of the present embodiment, the rotation speed of rod iron is in 80-100r/min.
When carrying out natural cooling, normalizing and tempering to rod iron, rod iron is in rotation status, at the uniform velocity by control rod iron
Rotation, improves the uniformity of heating or the heat dissipation of rod iron, improves the treatment effect of rod iron.
When rod iron is cooling on industrial cold bed, the rotation speed of rod iron is in 80-100r/min, it is preferable that the rotation of rod iron
Rotary speed is 90r/min.
When rod iron is heat-treated in induction hardening and tempering furnace, the rotation speed of rod iron is in 80-100r/min, it is preferable that rod iron
Rotation speed be 80r/min.
In the optinal plan of the present embodiment, hardening heat is 910 DEG C.
In the optinal plan of the present embodiment, hardness is between 48-60HRC after rod iron quenching.
In the optinal plan of the present embodiment, hardness is between 50-55HRC after rod iron quenching.
In the optinal plan of the present embodiment, the rod iron hardness after heat treatment is between 250-260HB.
It should be pointed out that rod iron is made in post-production using this technique, rolled steel bar can be shortened to finishing
The manufacturing cycle of part improves the service performance of components.
The process of SCM435H induction hardening and tempering process provided in this embodiment is as follows:
The first step is heated in the range of 900-920 DEG C using induction hardening and tempering furnace, and rod iron transmission speed is controlled in 4-
6m/min；
Second step, by incuding quenched cooling device, rod iron temperature is controlled at 150 DEG C or so；It is examined using Luo Shi hardometer
Hardness is being more than or equal to 48HRC after surveying quenching；
Third step, by incuding hardening and tempering furnace, tempering temperature is controlled in the range of 740-750 DEG C；Rod iron transmission speed control
System is in 4-6m/min；
4th step after induction tempering, makes material complete natural cooling, detects steel using Rockwell apparatus by industrial cold bed
The hardness of stick, the hardness of rod iron is within the scope of 240-280HB.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of SCM435H incudes hardening and tempering process characterized by comprising
Modifier treatment is carried out to rod iron in the range of 900-920 DEG C of degree using induction hardening and tempering furnace, rod iron is in induction hardening and tempering furnace
Transmission speed control in 4-6m/min；
Cooling by incuding quenched cooling device after induction hardening and tempering furnace discharge, rod iron temperature is controlled at 140-160 DEG C, and steel
Hardness is not less than 48HRC after stick quenching；
Rod iron is tempered by incuding hardening and tempering furnace, tempering temperature controls in the range of 740-750 degree, and rod iron is incuding
Transmission speed in hardening and tempering furnace is controlled in 4-6m/min；
After induction tempering, material is set to complete natural cooling by industrial cold bed, the hardness of rod iron is between 240-280HB.
2. SCM435H according to claim 1 incudes hardening and tempering process, which is characterized in that by incuding quenched cooling device
After cooling rod iron, there is martensite in rod iron material metallographic structure.
3. SCM435H according to claim 1 incudes hardening and tempering process, which is characterized in that rod iron heat in induction hardening and tempering furnace
Rotation status is in when processing.
4. SCM435H according to claim 3 incudes hardening and tempering process, which is characterized in that the rotation speed of the rod iron exists
80-100r/min.
5. SCM435H according to claim 1 incudes hardening and tempering process, which is characterized in that rod iron carries out on industrial cold bed
Rotation status is in when natural cooling.
6. SCM435H according to claim 5 incudes hardening and tempering process, which is characterized in that the rotation speed of the rod iron exists
80-100r/min.
7. SCM435H according to claim 1 incudes hardening and tempering process, which is characterized in that refining temperature is 910 DEG C.
8. SCM435H according to claim 1 incudes hardening and tempering process, which is characterized in that hardness is in 48- after rod iron quenching
Between 60HRC.
9. SCM435H according to claim 8 incudes hardening and tempering process, which is characterized in that hardness is in 50- after rod iron quenching
Between 55HRC.
10. -9 described in any item SCM435H incude hardening and tempering process according to claim 1, which is characterized in that after heat treatment
Rod iron hardness is between 250-260HB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061676.6A CN109055670A (en) | 2018-09-11 | 2018-09-11 | SCM435H incudes hardening and tempering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061676.6A CN109055670A (en) | 2018-09-11 | 2018-09-11 | SCM435H incudes hardening and tempering process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109055670A true CN109055670A (en) | 2018-12-21 |
Family
ID=64760279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811061676.6A Pending CN109055670A (en) | 2018-09-11 | 2018-09-11 | SCM435H incudes hardening and tempering process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109055670A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118260A (en) * | 2020-01-15 | 2020-05-08 | 江苏南钢通恒特材科技有限公司 | GCr15 heat treatment process |
| CN114517248A (en) * | 2019-12-31 | 2022-05-20 | 上海大学 | Rapid quenching and tempering heat treatment method for gun steel bar with 10-time speed level |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952926A (en) * | 2012-10-24 | 2013-03-06 | 荣成锻压机床有限公司 | Thermal refining method of press eccentric body made from 35CrMo |
| CN105331778A (en) * | 2015-11-10 | 2016-02-17 | 平高集团有限公司 | Laser quenching treatment method and quenched workpiece |
| CN105648154A (en) * | 2014-11-14 | 2016-06-08 | 重庆麦卡瑞机械制造有限公司 | Flame quenching technique |
| CN107586934A (en) * | 2017-09-21 | 2018-01-16 | 江苏南钢通恒特材科技有限公司 | Big rod senses hardening and tempering process and big rod sensing tempering product line |
-
2018
- 2018-09-11 CN CN201811061676.6A patent/CN109055670A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952926A (en) * | 2012-10-24 | 2013-03-06 | 荣成锻压机床有限公司 | Thermal refining method of press eccentric body made from 35CrMo |
| CN105648154A (en) * | 2014-11-14 | 2016-06-08 | 重庆麦卡瑞机械制造有限公司 | Flame quenching technique |
| CN105331778A (en) * | 2015-11-10 | 2016-02-17 | 平高集团有限公司 | Laser quenching treatment method and quenched workpiece |
| CN107586934A (en) * | 2017-09-21 | 2018-01-16 | 江苏南钢通恒特材科技有限公司 | Big rod senses hardening and tempering process and big rod sensing tempering product line |
Non-Patent Citations (2)
| Title |
|---|
| 吴元徽: "《热处理工（中级）鉴定培训教材》", 31 January 2011, 机械工业出版社 * |
| 王洪明: "《结构钢手册》", 31 August 1985, 河北科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517248A (en) * | 2019-12-31 | 2022-05-20 | 上海大学 | Rapid quenching and tempering heat treatment method for gun steel bar with 10-time speed level |
| CN111118260A (en) * | 2020-01-15 | 2020-05-08 | 江苏南钢通恒特材科技有限公司 | GCr15 heat treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104745780B (en) | Production method for forging and thermally treating Cr12MoV steel | |
| CN109023103B (en) | Production method of bainite cold heading steel wire rod | |
| CN104862615B (en) | A kind of production technology of S31803 two-phase stainless steel flange | |
| CN106555045A (en) | A kind of seamless steel pipe press quenching cooling technique and manufacture method of utilization waste heat | |
| CN108103304A (en) | A kind of steel wire austempering heat treatment process and equipment | |
| CN109055670A (en) | SCM435H incudes hardening and tempering process | |
| CN106086681A (en) | A kind of high-carbon steel wire wire rod and preparation method thereof | |
| CN105063285B (en) | A kind of roll induction hardening process method | |
| CN108754085A (en) | A kind of GCr15 small steels thin-wall bearing ferrule Bainitic hardening process | |
| CN108546804A (en) | Incude tempering product line | |
| CN105593384A (en) | Heat treatment method for ring-shaped member and heat treatment equipment for ring-shaped member | |
| CN102363836A (en) | Induction quenching method for Cr12MoV roller | |
| WO2017206441A1 (en) | Process for heat treatment of grade r6 mooring chain | |
| CN104357643B (en) | Net carbide Technology for Heating Processing is eliminated after a kind of roll forging | |
| CN105689611A (en) | Machining technology for single-end spline shaft sleeve | |
| CN107475501A (en) | A kind of Micro Alloying brake camshaft and its manufacture method | |
| CN106854691A (en) | Steel part Technology for Heating Processing, steel part forging method and annealing device using the Technology for Heating Processing | |
| CN108611471A (en) | 20MnCr5 incudes normalizing process | |
| CN106480261B (en) | A kind of heat treatment method of think gauge mould steel | |
| JPS58113318A (en) | Manufacture of case hardening steel | |
| US2445150A (en) | Method of heat-treating a metallic annulus | |
| CN108796194A (en) | 42CrMoA rod irons incude normalizing process | |
| CN107470853A (en) | A kind of Micro Alloying brake camshaft and its manufacture method | |
| CN105755266A (en) | Gear quenching technology | |
| CN113481354A (en) | Ultrahigh-speed continuous isothermal spheroidizing annealing method and device for carbon steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |