CN104259199B - Stainless steel wire rod rolling mill practice - Google Patents

Stainless steel wire rod rolling mill practice Download PDF

Info

Publication number
CN104259199B
CN104259199B CN201410382965.1A CN201410382965A CN104259199B CN 104259199 B CN104259199 B CN 104259199B CN 201410382965 A CN201410382965 A CN 201410382965A CN 104259199 B CN104259199 B CN 104259199B
Authority
CN
China
Prior art keywords
temperature
blank
roll
wire rod
rolling
Prior art date
Application number
CN201410382965.1A
Other languages
Chinese (zh)
Other versions
CN104259199A (en
Inventor
黄云飞
Original Assignee
无锡兴澄特种材料有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 无锡兴澄特种材料有限公司 filed Critical 无锡兴澄特种材料有限公司
Priority to CN201410382965.1A priority Critical patent/CN104259199B/en
Publication of CN104259199A publication Critical patent/CN104259199A/en
Application granted granted Critical
Publication of CN104259199B publication Critical patent/CN104259199B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/16Metal-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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section

Abstract

The invention discloses a kind of stainless steel wire rod rolling mill practice, comprise following processing step, blank prepares, heat, groove rolling, pass through roughing, in roll and roll in two, be rolled from coarse to fine for product, roughing comprises 5 passes, square billet is carried out bight processing by the first passage, blank after the processing of bight is processed into ellipse by the second passage, oval blank is processed into circle by the 3rd passage, circular blank is processed into ellipse by four-pass, oval blank is processed into circle by the 5th passage, in roll and comprise 9 passes, roll in two and comprise 5 passes, all being carried out by blank converting final Formation cross-section between ellipse and circle is circular semi-finished product, pre-finish rolling, finish rolling, weave silk, control cold, packaging, during groove rolling, square billet is after the bight processing of first time passage, transit directly to ellipse-circular hole, deformation extent is comparatively even, defect reduces, can rolling stock many sizes, shut out part expanded range.

Description

Stainless steel wire rod rolling mill practice
Technical field
The present invention relates to a kind of stainless steel wire rod rolling mill practice.
Background technology
Current stainless steel wire rod rolling mill practice comprises blank preparation, heating, groove rolling, pre-finish rolling, finish rolling, weaves silk, controls cold, packaging, and rectangle taked by groove rolling process mesothyrid, square billet finally need reroll and make circle after the processing of multi-pass bight between square and rectangle after multi-pass converts, the distortion uniformity of finally weaving silk is not high, there is many defects, can rolling stock single, shut out part narrow range.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, provide a kind of stainless steel wire rod rolling mill practice, wire rod deformation extent is comparatively even, and defect reduces, can rolling stock many sizes, shuts out part expanded range.
For achieving the above object, technical scheme of the present invention there is provided a kind of stainless steel wire rod rolling mill practice, comprises following processing step:
S1: blank prepares, and by square steel billets, stacks by level, in groined type, checks billet surface quality simultaneously, by clean for the polishing of oxide layer thicker part;
S2: heat, hung in heating furnace by steel billet and heat, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-1280 DEG C, and the heat time is 120-180min;
S3: groove rolling, pass through roughing, in roll and roll in two, be rolled from coarse to fine for product, roughing comprises 5 passes, square billet is carried out bight processing by the first passage, blank after the processing of bight is processed into ellipse by the second passage, oval blank is processed into circle by the 3rd passage, circular blank is processed into ellipse by four-pass, oval blank is processed into circle by the 5th passage, in roll and comprise 9 passes, roll in two and comprise 5 passes, all being carried out by blank converting final Formation cross-section between ellipse and circle is circular semi-finished product, the lengthening coefficient controlling every time in the operation of rolling is 1.1 ~ 1.4, every time spread coefficient is 0.3 ~ 0.4, in the operation of rolling, the speed of service of steel billet is by accelerating slowly, its velocity interval is 15m/s ~ 65m/s,
S4: pre-finish rolling: adopt flying shear to cut off the irregular place of Head and Tail Shape of steel bar described in step S3, then the steel bar after shearing is carried out pre-finish rolling;
S5: finish rolling: employing flying shear cuts off the irregular place of steel bar Head and Tail Shape in step S4 after pre-finish rolling, then the steel bar after shearing is carried out finish rolling and obtains wire rod;
S6: weave silk: adopt Laying head to change wire rod described in step S5 into ring shape, obtain wire-rod roll, laying temperature is 800 ~ 1100 DEG C;
S7: control cold: the wire rod in step S6 is cooled by air-cooled mode, cooling wind speed is 0.32 ~ 0.62m/s;
S8: packaging, carries out collection volume-P/F line transport cooling-heat inspection-haircut tail bundling-packaging warehouse-in successively by the wire rod in step S7.
As preferably, in step S2, the stainless steel grade of 200 and 300 series, preheating section temperature is less than 900 DEG C, and high temperature section temperature is 1130-1280 DEG C; The stainless steel grade of 400 series, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-920 DEG C.
As preferably, in step S4 and S5, shut out by horizontal roll, flying shear sheared length is 200 ~ 400mm, is shut out by longitudinal roll, and flying shear sheared length is 400 ~ 650mm.
As preferably, also have de-scaling step between step S2 and S3, adopt water under high pressure to carry out de-scaling process to steel billet, hydraulic pressure is not less than 18MPa.
As preferably, also have water-cooling step between step S4 and S5, adopt Φ 40 water cooling tube to carry out water-cooled, when need ensure that rolled piece enters finish rolling, temperature is greater than 980 DEG C.
As preferably, in step S3 roughing and in roll between also there is the step that induction furnace heats, the heat time is 60-80min, and power is 2-55HZ, blank temperature >=990 DEG C after heating.
Advantage of the present invention and beneficial effect are: during groove rolling, and square billet is after the bight processing of first time passage, and transit directly to ellipse-circular hole, deformation extent is comparatively even, and defect reduces, can rolling stock many sizes, shut out part expanded range.
Accompanying drawing illustrates:
Fig. 1 is each passage pass of roughing;
Fig. 2 rolls each passage pass in being;
Fig. 3 rolls each passage pass in two.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
A kind of stainless steel wire rod rolling mill practice, comprises following processing step:
S1: blank prepares, and by square steel billets, stacks by level, in groined type, checks billet surface quality simultaneously, by clean for the polishing of oxide layer thicker part;
S2: heat, hung in heating furnace by steel billet and heat, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-1280 DEG C, and the heat time is 120-180min;
S3: groove rolling, pass through roughing, in roll and roll in two, be rolled from coarse to fine for product, roughing comprises 5 passes, square billet is carried out bight processing by the first passage, blank after the processing of bight is processed into ellipse by the second passage, oval blank is processed into circle by the 3rd passage, circular blank is processed into ellipse by four-pass, oval blank is processed into circle by the 5th passage, in roll and comprise 9 passes, roll in two and comprise 5 passes, all being carried out by blank converting final Formation cross-section between ellipse and circle is circular semi-finished product, , the lengthening coefficient controlling every time in the operation of rolling is 1.1 ~ 1.4, every time spread coefficient is 0.3 ~ 0.4, in the operation of rolling, the speed of service of steel billet is by accelerating slowly, its velocity interval is 15m/s ~ 65m/s,
S4: pre-finish rolling: adopt flying shear to cut off the irregular place of Head and Tail Shape of steel bar described in step S3, then the steel bar after shearing is carried out pre-finish rolling;
S5: finish rolling: employing flying shear cuts off the irregular place of steel bar Head and Tail Shape in step S4 after pre-finish rolling, then the steel bar after shearing is carried out finish rolling and obtains wire rod;
S6: weave silk: adopt Laying head to change wire rod described in step S5 into ring shape, obtain wire-rod roll, laying temperature is 800 ~ 1100 DEG C;
S7: control cold: the wire rod in step S6 is cooled by air-cooled mode, cooling wind speed is 0.32 ~ 0.62m/s;
S8: packaging, carries out collection volume-P/F line transport cooling-heat inspection-haircut tail bundling-packaging warehouse-in successively by the wire rod in step S7.
The embodiment of optimization of the present invention is, in step S2, and the stainless steel grade of 200 and 300 series, preheating section temperature is less than 900 DEG C, and high temperature section temperature is 1130-1280 DEG C; The stainless steel grade of 400 series, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-920 DEG C.
The embodiment of optimization of the present invention is, in step S4 and S5, is shut out by horizontal roll, and flying shear sheared length is 200 ~ 400mm, is shut out by longitudinal roll, and flying shear sheared length is 400 ~ 650mm.
The embodiment of optimization of the present invention is also have de-scaling step between step S2 and S3, and adopt water under high pressure to carry out de-scaling process to steel billet, hydraulic pressure is not less than 18MPa, and the steel grades such as S30300, S30320 are without the need to de-scaling.
The embodiment of optimization of the present invention is also have water-cooling step between step S4 and S5, adopts Φ 40 water cooling tube to carry out water-cooled, and when need ensure that rolled piece enters finish rolling, temperature is greater than 980 DEG C.
The embodiment of optimization of the present invention is, in step S3 roughing and in roll between also there is the step that induction furnace heats, the heat time is 60-80min, and power is 2-55HZ, blank temperature >=990 DEG C after heating.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. a stainless steel wire rod rolling mill practice, is characterized in that: comprise following processing step:
S1: blank prepares, and by square steel billets, stacks by level, in groined type, checks billet surface quality simultaneously, by clean for the polishing of oxide layer thicker part;
S2: heat, hung in heating furnace by steel billet and heat, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-1280 DEG C, and the heat time is 120-180min;
S3: groove rolling, pass through roughing, in roll and roll in two, be rolled from coarse to fine for product, roughing comprises 5 passes, square billet is carried out bight processing by the first passage, blank after the processing of bight is processed into ellipse by the second passage, oval blank is processed into circle by the 3rd passage, circular blank is processed into ellipse by four-pass, oval blank is processed into circle by the 5th passage, in roll and comprise 9 passes, roll in two and comprise 5 passes, all being carried out by blank converting final Formation cross-section between ellipse and circle is circular semi-finished product, the lengthening coefficient controlling every time in the operation of rolling is 1.1 ~ 1.4, every time spread coefficient is 0.3 ~ 0.4, in the operation of rolling, the speed of service of steel billet is by accelerating slowly, its velocity interval is 15m/s ~ 65m/s,
S4: pre-finish rolling: adopt flying shear to cut off the irregular place of Head and Tail Shape of steel bar described in step S3, then the steel bar after shearing is carried out pre-finish rolling;
S5: finish rolling: employing flying shear cuts off the irregular place of steel bar Head and Tail Shape in step S4 after pre-finish rolling, then the steel bar after shearing is carried out finish rolling and obtains wire rod;
S6: weave silk: adopt Laying head to change wire rod described in step S5 into ring shape, obtain wire-rod roll, laying temperature is 800 ~ 1100 DEG C;
S7: control cold: the wire rod in step S6 is cooled by air-cooled mode, cooling wind speed is 0.32 ~ 0.62m/s;
S8: packaging, carries out collection volume-P/F line transport cooling-heat inspection-haircut tail bundling-packaging warehouse-in successively by the wire rod in step S7.
2. stainless steel wire rod rolling mill practice as claimed in claim 1, it is characterized in that: in step S2, the stainless steel grade of 200 and 300 series, preheating section temperature is less than 900 DEG C, and high temperature section temperature is 1130-1280 DEG C; The stainless steel grade of 400 series, preheating section temperature is less than 800 DEG C, and high temperature section temperature is 830-920 DEG C.
3. stainless steel wire rod rolling mill practice as claimed in claim 1, it is characterized in that: in step S4 and S5, shut out by horizontal roll, flying shear sheared length is 200 ~ 400mm, is shut out by longitudinal roll, and flying shear sheared length is 400 ~ 650mm.
4. stainless steel wire rod rolling mill practice as claimed in claim 1, is characterized in that: also have de-scaling step between step S2 and S3, and adopt water under high pressure to carry out de-scaling process to steel billet, hydraulic pressure is not less than 18MPa.
5. stainless steel wire rod rolling mill practice as claimed in claim 1, is characterized in that: also have water-cooling step between step S4 and S5, adopts Φ 40 water cooling tube to carry out water-cooled, and when need ensure that rolled piece enters finish rolling, temperature is greater than 980 DEG C.
6. stainless steel wire rod rolling mill practice as claimed in claim 1, is characterized in that: in step S3 roughing and in roll between also there is the step that induction furnace heat, the heat time is 60-80min, and power is 2-55HZ, and heating is blank temperature >=990 DEG C afterwards.
CN201410382965.1A 2014-08-06 2014-08-06 Stainless steel wire rod rolling mill practice CN104259199B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410382965.1A CN104259199B (en) 2014-08-06 2014-08-06 Stainless steel wire rod rolling mill practice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410382965.1A CN104259199B (en) 2014-08-06 2014-08-06 Stainless steel wire rod rolling mill practice

Publications (2)

Publication Number Publication Date
CN104259199A CN104259199A (en) 2015-01-07
CN104259199B true CN104259199B (en) 2016-03-16

Family

ID=52150844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410382965.1A CN104259199B (en) 2014-08-06 2014-08-06 Stainless steel wire rod rolling mill practice

Country Status (1)

Country Link
CN (1) CN104259199B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106077084B (en) * 2016-06-24 2018-07-31 江苏省沙钢钢铁研究院有限公司 A kind of high speed wire rolling method of austenite stainless steel wire rod
CN106269857B (en) * 2016-08-26 2019-03-05 无锡兴澄特种材料有限公司 The production technology that carbon steel is coiled
CN106623417A (en) * 2016-12-22 2017-05-10 常熟理工学院 High speed wire rolling method for austenitic stainless steel wire rod for welding
CN107054715B (en) * 2016-12-28 2019-10-18 东莞市科力钢铁线材有限公司 The automatic unwrapping wire severing of wire-drawing equipment is packaged production technology
CN107385177B (en) * 2017-06-06 2018-12-21 无锡兴澄特种材料有限公司 Medium carbon steel skin decarburization controls hot rolling wire production technology
CN108971257B (en) * 2017-09-01 2020-06-19 江苏贯森新材料科技有限公司 Rolling process for ultra-flat precise stainless steel treatment
CN108977641B (en) * 2017-09-01 2020-03-27 江苏贯森新材料科技有限公司 Heat treatment process for machining precision stainless steel
CN108220725B (en) * 2018-04-09 2020-01-14 河北工业大学 Preparation method of high-performance magnesium alloy bar
CN110125177A (en) * 2019-04-17 2019-08-16 无锡兴澄特种材料有限公司 A kind of hot rolling wire production method improving surface quality

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832765A (en) * 1995-10-14 1998-11-10 Daido Tokushuko Kabushiki Kaisha Method and an apparatus for manufacturing wire
CN101456031A (en) * 2007-12-11 2009-06-17 杨连明 Pass structure optimization method of roller pass system
CN101691644A (en) * 2009-07-11 2010-04-07 山西太钢不锈钢股份有限公司 Nonmagnetic soft stainless steel wire rod or stainless steel plate and method of manufacturing same
CN102294352A (en) * 2011-08-29 2011-12-28 山西太钢不锈钢股份有限公司 Method for rolling stainless-steel bar material with diameter of 120mm by utilizing rolling mill of 650mm

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3605971B2 (en) * 1996-11-06 2004-12-22 住友金属工業株式会社 Diameter reduction method for SUS303 wire rod
JP2004188461A (en) * 2002-12-11 2004-07-08 Sanyo Special Steel Co Ltd Method for manufacturing round-shaped billet by blooming continuously cast bloom of steel grade sus 430 system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832765A (en) * 1995-10-14 1998-11-10 Daido Tokushuko Kabushiki Kaisha Method and an apparatus for manufacturing wire
CN101456031A (en) * 2007-12-11 2009-06-17 杨连明 Pass structure optimization method of roller pass system
CN101691644A (en) * 2009-07-11 2010-04-07 山西太钢不锈钢股份有限公司 Nonmagnetic soft stainless steel wire rod or stainless steel plate and method of manufacturing same
CN102294352A (en) * 2011-08-29 2011-12-28 山西太钢不锈钢股份有限公司 Method for rolling stainless-steel bar material with diameter of 120mm by utilizing rolling mill of 650mm

Also Published As

Publication number Publication date
CN104259199A (en) 2015-01-07

Similar Documents

Publication Publication Date Title
US6024808A (en) Seamless steel pipe manufacturing method and equipment
CN104759850B (en) A kind of aluminium alloy height barrier part processing technique
RU2401169C2 (en) Method of producing high-quality pipes from antirust steel 08x18h10t-"+" for nuclear power engineering structures
RU2381847C1 (en) Method and relates to it installation for manufacturing of steel strips with discontinuity
CN104148382B (en) Hot continuous rolling produces the method for titanium or titanium alloy bar
TWI432272B (en) Method and plant for manufacturing hot rolled strip from silicon steel on the basis of thin slabs
KR101138711B1 (en) Method and production line for manufacturing metal strips made of copper or copper alloys
CN105290106B (en) A kind of Ribbed Bar bar low temperature controlled rolling cutting process and device
CN101152653B (en) Method for rolling titanium and titanium alloy bar wire bar with three-roller type Y continuous rolling mill
CN102615491B (en) Processing method for copper material
CN103752622B (en) A kind of heavy plate rolling control method eliminating strand edge fault
CN103045906B (en) Process method of producing high-grade TC4 alloy hot rolled plate with high material-obtaining rate and low cost
EP2710159B1 (en) Method and device for preparing steel milled goods before hot rolling
CN103909382A (en) Large-diameter moderately-strong heat-resisting magnesium alloy thick-wall barrel-shaped piece forming process
CN105499920B (en) A kind of manufacturing method of heavy caliber thick wall seamless niobium tubing material
CN101985136B (en) Method for preparing BFe10-1-1 alloy pipe
CN102463272A (en) Short-flow preparation method of minor-caliber nickel-based alloy thin-wall tubes
CN101619780B (en) Technological method for upwardly continuously casting, rolling, drawing and producing copper alloy tubes
CN102434725B (en) A kind of manufacture method of large-caliber stainless steel seamless pipe
CN103551404B (en) A kind of production method of stainless screw-thread steel
JP5674928B2 (en) Rolling line and method related thereto
CN100595027C (en) Two-stand angularly hot rolling minor diameter seamless steel tube rolling technique and equipment thereof
CN105057348B (en) Method for producing ribbed reinforcing bars of phi 25mm by adopting two-slitting rolling
CN105396895B (en) A kind of hot rolling method of the seamless oil pipe of titanium or titanium alloy
CN101934302A (en) Method for preparing seamless titanium alloy tube for aircraft engine

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
CB02 Change of applicant information

Address after: 214400, No. 2, Renmin West Road, Yang Hua community, Wuxi, Jiangsu

Applicant after: WUXI XINGCHENG HUAXIN STEEL MATERIAL CO., LTD.

Address before: 214400, No. 2, Renmin West Road, Yang Hua community, Wuxi, Jiangsu

Applicant before: The new steel of Wuxi Xing Chenghua company limited

COR Change of bibliographic data
GR01 Patent grant
C14 Grant of patent or utility model