CN105499266A - Tool and mold steel processing technology - Google Patents
Tool and mold steel processing technology Download PDFInfo
- Publication number
- CN105499266A CN105499266A CN201510958070.2A CN201510958070A CN105499266A CN 105499266 A CN105499266 A CN 105499266A CN 201510958070 A CN201510958070 A CN 201510958070A CN 105499266 A CN105499266 A CN 105499266A
- Authority
- CN
- China
- Prior art keywords
- steel
- processing technology
- steel billet
- finish rolling
- finished product
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000011218 segmentation Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000010583 slow cooling Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005242 forging Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B2001/022—Blooms or billets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a tool and mold steel processing technology. The tool and mold steel processing technology comprises the following steps: 1) steel blanks are heated to reach a hot rolling temperature; 2) the steel blanks in the step 1) are roughly rolled by multiple times to form steel blanks; 3) the steel blanks are shorn to sections; 4) the upper, lower, left and right sides of the steel blanks are finely rolled by multiple times in turns, so that the sections of steel ingots reach the specifications of finished products, and finish-rolled pieces are formed; 5) the heads and the tails of the finish-rolled pieces are shorn off and sectioned; and 6) the finish-rolled pieces are grouped in rows, and are sawn according to the lengths of the finished products to form the finished products. The tool and mold steel processing technology uses the steel blanks as production raw materials; after the steel blanks are heated, roughly rolled and finely rolled, the steel blanks are grouped in rows and cut to the needed specifications to form the finished products; and compared with the prior art, the technology uses multiple times of rolling for replacing forging to improve the yield, the tool and mold steel surface precision and the product performance.
Description
Technical field
The present invention relates to steel rolling equipment technical field, particularly a kind of mould steel processing technology.
Background technology
As everyone knows, tool and mould is described as " mother of modern industry ", this just can to embody the importance of tool and mould in modern industry and indelible contribution, and mould steel is the most important part of tool and mould, is also the material be most widely used in mold materials.
At present in steel production enterprise, produce the mode of production that mould steel mainly adopts forging, but adopting the mould steel produced in this way also exists the shortcomings such as surface quality is not high, properties of product are stable not, lumber recovery is low, production efficiency is low.
Therefore, how to provide a kind of mould steel processing technology, to improve the surface accuracy of mould steel and properties of product and lumber recovery, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of mould steel processing technology, to roll generation forging, thus reach the effect improving mould steel surface accuracy and properties of product and lumber recovery.
For achieving the above object, the invention provides following technical scheme:
A kind of mould steel processing technology, comprises step:
1) steel billet is heated to hot-rolled temperature;
2) to described step 1) in described steel billet carry out multi-pass roughing formed steel billet;
3) described steel ingot is sheared segmentation;
4) to described steel billet up and down and the hocket finish rolling of multi-pass of the left and right sides make the cross section of described steel billet reach trimmed size, form finish rolling part;
5) described finish rolling part is cut off also segmentation end to end;
6) by a row for described finish rolling part marshalling, and sawing formation finished product is carried out according to finished product length.
Preferably, described step 2) be specially:
To described step 1) in described steel billet up and down and the left and right sides to hocket the roughing of multi-pass.
Preferably, 3 ~ 8 passage roughing are carried out to described steel billet.
Preferably, 3 ~ 10 passage finish rolling are carried out to described steel ingot.
Preferably, in described step 2) also need to carry out de-scaling process to described steel billet before.
Preferably, described step 6) also comprise step afterwards:
7) by the cooling of described finished product income slow cooling equipment;
8) after described finished product cooling, the finishing of finishing workshop, warehouse-in is sent into.
As can be seen from technique scheme, the invention provides a kind of mould steel processing technology, comprise step: 1) heat steel billet to hot-rolled temperature; 2) to step 1) in steel billet carry out multi-pass roughing formed steel billet; 3) by billet shears cutting section; 4) to steel billet up and down and the hocket finish rolling of multi-pass of the left and right sides make the cross section of steel ingot reach trimmed size, form finish rolling part; 5) finish rolling part is cut off also segmentation end to end; 6) by a row for the marshalling of finish rolling part, and sawing formation finished product is carried out according to finished product length; Above-mentioned mould steel processing technology is using steel billet as raw materials for production, steel billet is after heating, roughing, finish rolling, marshalling in a row and the specification being cut into needs forms finished product, compared with prior art, this technique is with repeatedly rolling replacement forging, thus raising lumber recovery, mould steel surface accuracy and properties of product.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The flow chart of the mould steel processing technology that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
The invention provides a kind of mould steel processing technology, to roll generation forging, thus reach the effect improving mould steel surface accuracy and properties of product and lumber recovery.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the flow chart of the mould steel processing technology that Fig. 1 provides for the embodiment of the present invention.
Embodiments provide a kind of mould steel processing technology, comprise step:
S1: heating steel billet is to hot-rolled temperature;
S2: multi-pass roughing is carried out to the steel billet in step S1 and forms steel billet;
S3: by billet shears cutting section;
S4: to steel billet up and down and the hocket finish rolling of multi-pass of the left and right sides make the cross section of steel billet reach trimmed size, form finish rolling part;
S5: finish rolling part is cut off end to end and segmentation;
S6: by the marshalling of finish rolling part in a row, and carry out sawing formation finished product according to finished product length.
The mould steel processing technology that the embodiment of the present invention provides, be mainly used in the production of band steel and round steel, using steel billet as raw materials for production, steel billet is after heating, roughing, finish rolling, in a row and the specification being cut into needs forms finished product, compared with prior art, this technique replaces forging with repeatedly rolling in marshalling, thus raising lumber recovery, mould steel surface accuracy and properties of product.
In order to make steel billet obtain sufficient rolling, make the crystal grain of formation steel billet form more tiny particle, in embodiments of the present invention, step S2 is specially:
To the steel billet in step S1 up and down and the left and right sides to hocket the roughing of multi-pass.Like this, steel billet is in rough rolling process, and its upper and lower surface and the left and right sides all can be subject to the effect of roll-force alternately, can make the particle that the grain fragmentation in steel billet becomes more tiny, finish rolling for next step provides better basis, thus makes final mould steel better quality.
In order to optimize technique scheme further, in the step S2 of the embodiment of the present invention, 3 ~ 8 passage roughing are carried out to steel billet.
In step S4,3 ~ 10 passage finish rolling are carried out to steel ingot.By carrying out the continuous rolling of multi-pass to steel billet, the deformation rate of steel billet can be made even, and cut loss rate and reduce, lumber recovery improves, the quality of the mould steel further improved.
Steel billet is easily oxidized at high operating temperatures, the oxide layer of one deck densification is formed on surface, be called firecoat, if and this layer of phosphorus skin is not removed before rolling, in the operation of rolling, this layer of phosphorus skin can be pressed in mould steel, the quality of mould steel will be had a strong impact on, therefore, in embodiments of the present invention, also needed to carry out de-scaling process to steel billet before step S2, de-scaling process can adopt the mode of high-pressure water descaling, by the water under high pressure of ejection up and down to steel billet, is removed by outer field for steel billet firecoat.
After sawing becomes product size, finished product rolled piece still possesses higher temperature, causes stress to concentrate in order to avoid the too fast cooling of finished product rolled piece, finished product rolled piece inside is made to occur defect, affect the quality of finished product rolled piece, in embodiments of the present invention, after step S6, also comprise step:
S7: finished product is taken in the cooling of slow cooling equipment;
S8: send into the finishing of finishing workshop, warehouse-in after finished product cooling.
By finished product rolled piece is sent into slow cooling equipment, make its Slow cooling, avoid finished product rolled piece owing to cooling the too fast problem of stress concentration caused, ensure product quality.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a mould steel processing technology, is characterized in that, comprises step:
1) steel billet is heated to hot-rolled temperature;
2) to described step 1) in described steel billet carry out multi-pass roughing formed steel billet;
3) described steel ingot is sheared segmentation;
4) to described steel ingot up and down and the hocket finish rolling of multi-pass of the left and right sides make the cross section of described steel billet reach trimmed size, form finish rolling part;
5) described finish rolling part is cut off also segmentation end to end;
6) by a row for described finish rolling part marshalling, and sawing formation finished product is carried out according to finished product length.
2. mould steel processing technology according to claim 1, is characterized in that, described step 2) be specially:
To described step 1) in described steel billet up and down and the left and right sides to hocket the roughing of multi-pass.
3. mould steel processing technology according to claim 3, is characterized in that, carries out 3 ~ 8 passage roughing to described steel billet.
4. mould steel processing technology according to claim 1, is characterized in that, carries out 3 ~ 10 passage finish rolling to described steel ingot.
5. mould steel processing technology according to claim 1, is characterized in that, in described step 2) also need to carry out de-scaling process to described steel billet before.
6. mould steel processing technology according to claim 1, is characterized in that, described step 6) also comprise step afterwards:
7) by the cooling of described finished product income slow cooling equipment;
8) after described finished product cooling, the finishing of finishing workshop, warehouse-in is sent into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958070.2A CN105499266A (en) | 2015-12-19 | 2015-12-19 | Tool and mold steel processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958070.2A CN105499266A (en) | 2015-12-19 | 2015-12-19 | Tool and mold steel processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105499266A true CN105499266A (en) | 2016-04-20 |
Family
ID=55707786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958070.2A Pending CN105499266A (en) | 2015-12-19 | 2015-12-19 | Tool and mold steel processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105499266A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116122A (en) * | 1990-09-07 | 1992-04-16 | Nkk Corp | Production of cold die steel excellent in machinability |
| CN1264747A (en) * | 1999-12-29 | 2000-08-30 | 上海宝钢集团公司 | Frame steel of plastic mould and its manufacture method |
| CN101311289A (en) * | 2007-05-24 | 2008-11-26 | 宝山钢铁股份有限公司 | Steel for stamping die and method of manufacture |
| CN101914665A (en) * | 2010-08-30 | 2010-12-15 | 南京钢铁股份有限公司 | Process for producing thick plate of plastic die steel |
| CN103008346A (en) * | 2012-12-26 | 2013-04-03 | 南京理工大学 | Magnesium alloy polyhedral circulation rolling method |
| CN103993144A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Method for production of H13 die steel by bloom continuous casting |
-
2015
- 2015-12-19 CN CN201510958070.2A patent/CN105499266A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116122A (en) * | 1990-09-07 | 1992-04-16 | Nkk Corp | Production of cold die steel excellent in machinability |
| CN1264747A (en) * | 1999-12-29 | 2000-08-30 | 上海宝钢集团公司 | Frame steel of plastic mould and its manufacture method |
| CN101311289A (en) * | 2007-05-24 | 2008-11-26 | 宝山钢铁股份有限公司 | Steel for stamping die and method of manufacture |
| CN101914665A (en) * | 2010-08-30 | 2010-12-15 | 南京钢铁股份有限公司 | Process for producing thick plate of plastic die steel |
| CN103008346A (en) * | 2012-12-26 | 2013-04-03 | 南京理工大学 | Magnesium alloy polyhedral circulation rolling method |
| CN103993144A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Method for production of H13 die steel by bloom continuous casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104874603B (en) | Bar rolling process system and method | |
| CN103433319B (en) | A kind of manufacture method of stainless steel Side fascia used for rail vehicle | |
| EP2763804B1 (en) | A process for making forged and machined components | |
| CN100512987C (en) | Method for manufacturing two-layer surface composite steel | |
| CN110681696A (en) | Rolling process of high-sulfur steel | |
| CN104190712A (en) | Method for producing TA10 alloy rolls through hot continuous rolling mill | |
| JP6864955B2 (en) | How to make bars from titanium alloys | |
| CN105478469A (en) | Tool and mould steel processing technology | |
| US20160084261A1 (en) | Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same | |
| CN100556564C (en) | The manufacture method of composite strip steel for wood blade | |
| TW201716118A (en) | A method for manufacturing a golf club head | |
| US1486365A (en) | Forging process | |
| CN105499266A (en) | Tool and mold steel processing technology | |
| KR20140098572A (en) | Worm Gear Manufacturing Method | |
| CN103862248A (en) | Method for effectively preventing generation of head and tail surface defects in hot rolling process | |
| RU2570712C1 (en) | Strip hot rolling from low-alloy steel | |
| CN105081158B (en) | Large-scale forged steel BD roller forging methods | |
| CN105195550A (en) | Short-flow processing method for metal bar | |
| CN112756546A (en) | Process for improving flatness of end face of bolt tail | |
| CN106269857A (en) | The production technology that carbon steel is coiled | |
| CN105382547A (en) | Tool and die steel production line | |
| CN205271407U (en) | Tool and die steel production line | |
| CN111015374A (en) | Efficient steel billet grinding process | |
| JP6458662B2 (en) | Billet manufacturing method and billet manufacturing equipment | |
| CN202804047U (en) | Rack steel tooth molding roller and rolling production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
|
| RJ01 | Rejection of invention patent application after publication |