CN106269934B - The flexible control method of cord steel iron scale quality - Google Patents

The flexible control method of cord steel iron scale quality Download PDF

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CN106269934B
CN106269934B CN201610838557.1A CN201610838557A CN106269934B CN 106269934 B CN106269934 B CN 106269934B CN 201610838557 A CN201610838557 A CN 201610838557A CN 106269934 B CN106269934 B CN 106269934B
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iron scale
temperature
rolling
dephosphorization
quality
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CN106269934A (en
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赵铮铮
田新中
张治广
宋振平
秦树超
赵昊乾
孔令波
郭晓培
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Xingtai Iron and Steel Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention discloses a kind of flexible control methods of cord steel iron scale quality comprising heating, rolling and cooling process are 880~930 DEG C into final rolling temperature in the rolling process, 880~935 DEG C of laying temperature；In the cooling process, the roller table speed of Stelmor cooling line is 0.6~1.0m/s, first three frame wind turbine opens 1~3, first three frame fan section is cooled to >=830 DEG C.The present invention is suitable for the flexible control of the iron scale quality of φ 5.5mm specification cord steels, realize the matching of the physical parameters such as iron scale thickness, component, underbead crack, surface quality, enable to exempt from the different iron scale removing methods such as pickling, mechanical dephosphorization+pickling suitable for direct pickling, mechanical dephosphorization, it improves cord steel iron scale local shedding, bubble simultaneously, the quality problems of red rust occur, extending the holding time in cord steel room.

Description

The flexible control method of cord steel iron scale quality
Technical field
The invention belongs to metallurgical technology field, especially a kind of flexible control method of cord steel iron scale quality.
Background technology
Wire Rod Steel for Curtain String Purpose is the primary raw material for producing tyre equatorial steel-steel cord, steel cord in process, Its filament diameter as low as φ 0.15mm, the drawing since the wire rod of φ 5.5mm, length extend up to 1344 times, Surface Quality and Wire rod original structure requires high.
One of pretreatment process main function in steel cord production technology is to remove wire rod scale on surface, at present Main removing method is that pickling is exempted from mechanical dephosphorization+pickling, direct pickling, mechanical dephosphorization, no matter which kind of mode, main target are equal It is clean to remove wire rod scale on surface, residual ratio is reduced as possible.If scale on surface removal is not clean, disk can be influenced Surface boronation effect and then cause drawing lubrication bad, remaining iron scale can also scratch wire rod surface and cause to break when drawing Silk, can also mold damage, reduce die life.
Cord steel iron scale has the function of that the too fast corrosion of wire rod, i.e. wire rod iron scale is prevented to remove in pretreatment simultaneously It cannot fall off before phosphorus, wire rod substrate contact humid air is avoided to lead to corrosion, the curtain that the iron scale with good quality is protected Line steel wire rod can indoors under environment there are 6~12 months without apparent corrosion.The Wire Rod Steel for Curtain String Purpose table of actual production Face iron scale is frequently present of the defects of bubble, local shedding, red rust, and acceleration is led to wire rod matrix corrosion by such defect, is needed It to avoid as possible.
Iron scale is a kind of oxide of generally existing in steel production process, and many researchers systematically have studied The aerial oxidation behaviors of carbon steel.In air as temperature height changes, FeO, Fe in carbon steel iron scale3O4、 Fe2O3Three Phase Proportions can change correspondingly, and ultimately form a kind of straticulate structure, and iron scale forms component ratio and structure such as Shown in Fig. 1, Fig. 2.Eutectoid reaction, transmutation product Fe can occur at 200~560 DEG C for wherein FeO3O4And Fe, adjusting can be passed through Cooling velocity controls this eutectoid reaction progress, the eutectoid time transition curve such as Fig. 3 institutes that measures of the FeO in air Show.
Cord steel iron scale requires the physical parameters index such as certain thickness, component, structure, passes through these physical property Parameter can make it suitable for different iron scale removing methods, reach good iron scale removal effect.
Japanese scholars by research think, have good pickling quality iron scale should FeO large percentages, Fe3O4With Fe2O3The component ratio for being difficult to pickling is relatively low, there are a large amount of crackle inside iron scale, iron scale and basal body binding force compared with Low, iron scale thickness wants thin；Have good mechanical dephosphorization quality iron scale should iron scale it is thicker and internal contain Fe does not occur for less crackle, iron scale3O4Transformation, internal stress is big, and iron scale is relatively low with basal body binding force, aoxidizes Thickness of scale difference wants small, and iron scale Fe does not occur as possible with iron-based body boundary3O4, but the above research conclusion does not introduce tool The process control method of body.
Domestic University of Science ＆ Technology, Beijing, Wuhan University Of Technology scholar have studied cord steel iron scale quality, production technology With the relationship of mechanical dephosphorization removal effect, but research be only limited to temperature, cooling velocity influences mechanical phosphor-removing effect, cannot achieve It is adapted to pickling dephosphorization mode, also can not flexibly control iron scale physical parameter and surface quality.
Number of patent application 201410282904.8 discloses a kind of suitable for 80 grades of Wire Rod Steel for Curtain String Purpose of Pickling Descaling and its life Production method, including smelting, continuous casting, heating, rolling, method for controlling process for cooling；But just for wire rod Pickling Descaling mode, and office It is limited to the control of wire rod thickness, is not suitable for other dephosphorization modes, also cannot achieve the flexible control to iron scale quality.
Number of patent application 201510393161.6 discloses a kind of life improving high-carbon steel wire rod iron scale pickling performance Production method realizes the control of iron scale component by final rolling temperature control, the control of air-cooled line fan delivery；But it does not refer to The control of other iron scale indexs can not also be suitable for mechanical dephosphorization mode.
Number of patent application 201510807966.0 discloses the soft of a kind of comprehensive mechanical property and scale structure control Property production method, propose through the reasonable alloying component of steel grade, heating, the modes such as rolling temperature obtain relatively thin iron oxide Skin thickness and excellent surface quality；For this method without reference to specific steel grade, main purpose is to reduce iron scale, is not related to And subsequent oxidation iron sheet quality and the influence to dephosphorization mode.
The patent No. 201010189410.7 discloses control method of softness of oxide scales on surface of hot-rolling strip steel, passes through control Cooling velocity and coiling temperature reach the reasonable control of scale structure by controlling the eutectoid reaction degree of FeO, mainly Suitable for hot-strip.
Invention content
The technical problem to be solved in the present invention is to provide a kind of flexibilities of the flexible cord steel iron scale quality of control Control method.
In order to solve the above technical problems, the technical solution used in the present invention is：It includes heating, rolling and bosher Sequence, it is characterised in that：It is 880~930 DEG C into final rolling temperature in the rolling process, 880~935 DEG C of laying temperature；It is described cold But in process, the roller table speed of Stelmor cooling line is 0.6~1.0m/s, first three frame wind turbine opens 1~3, first three frame wind Machine section is cooled to >=830 DEG C.
In cooling process of the present invention, phase transformation postcooling speed control is in 0.5~15 DEG C/s, domination set volume temperature 100~400 DEG C.
In rolling process of the present invention, controls finishing mill finished product roller or subtract sizing roll surface roughness Rz≤2um.
In heating process of the present invention, 1050~1080 DEG C of billet heating temperature is controlled, heat total time 90~ 130min；Wherein high temperature section heating time≤40min, furnace gas remaining oxygen≤3.0wt%；High pressure water dephosphorization >=15MPa after tapping, Dephosphorization temperature is 1000~1050 DEG C.In the rolling process, finish rolling rear water box cooling water water nozzle pressure is controlled in≤5.0Bar.
In cooling process of the present invention, go out after first three frame fan section to wire rod phase transformation temperature points cooling velocity 15~ 25℃/s。
It is using advantageous effect caused by above-mentioned technical proposal：A）Achievable wire rod thickness of scale on surface 6~ It is flexibly controlled within the scope of 16um.
B）Wire rod scale on surface FeO may be implemented:Fe3O4Two-phase proportion is 1:1 to 4:It is adjusted between 1, meets machinery Three kinds of pickling, pickling dephosphorization modes are exempted from dephosphorization+pickling, mechanical dephosphorization.
C）Iron scale thickness difference≤3um may be implemented, iron scale inside is allowed to adapt to acid presence or absence of crackle It washes and the different of mechanical dephosphorization requires.
D）Iron scale surface bubble-free such as improves red rust, falls off at the abnormal problems.
The present invention is suitable for the flexible control of the iron scale quality of φ 5.5mm specification cord steels, by adjusting heating Temperature, heating time, Atmosphere Control, dephosphorization water pressure, roller surface quality, into water cooling pressure after final rolling temperature, finish rolling, The parameters such as laying temperature, fan operating numbers and stelmor roller table speed, realize iron scale thickness, component, underbead crack, The matching of the physical parameters such as surface quality enables to exempt from pickling, mechanical dephosphorization+pickling suitable for direct pickling, mechanical dephosphorization Etc. different iron scale removing methods, while improving cord steel iron scale local shedding, bubble, quality that red rust occur and asking Topic extends the holding time in cord steel room.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is that iron scale forms component ratio illustration to carbon steel in air；
Fig. 2 is that iron scale forms structural schematic diagram to carbon steel in air；
Fig. 3 is the eutectoid time transition curve figure that FeO is measured in air；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale metallographs of Fig. 4 embodiment of the present invention 1（50μm）；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale microscopic analysis figures of Fig. 5 embodiment of the present invention 1（10μm）；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale metallographs of Fig. 6 embodiment of the present invention 2（50μm）；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale microscopic analysis figures of Fig. 7 embodiment of the present invention 2（10μm）；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale metallographs of Fig. 8 embodiment of the present invention 3（50μm）；
The φ 5.5mm Wire Rod Steel for Curtain String Purpose iron scale microscopic analysis figures of Fig. 9 embodiment of the present invention 3（10μm）.
Specific implementation mode
The flexible control method of this cord steel iron scale quality is, rolling heated using steel billet and cooling process It is produced into Wire Rod Steel for Curtain String Purpose, steel billet ingredient meets the requirement of GB/T 27691-2011 cord steel wire rod standards；By controlling temperature It spends and realizes the regulation and control to iron scale component and thickness with the time length of different temperatures section, by cooling velocity and FeO The control of eutectoid reaction adjusts iron scale underbead crack state, is controlled by controlling the state of steel billet dephosphorization quality and roll Oxygenerating thickness of scale is poor, and iron scale surface state is controlled by controlling the parameters such as water tank cooling pressure and laying temperature, The final flexible control for realizing iron scale physical parameter, method and process are as described below：
1, the control technique of iron scale thickness：By control into final rolling temperature be 880~930 DEG C, laying temperature 880 ~935 DEG C, into Stelmor cooling line, roller table speed is 0.6~1.0m/s, first three frame wind turbine opens 1~3 four ginseng Number, first three frame fan section are cooled to 830~865 DEG C；Wire rod can be adjusted residing for this high temperature section of 935~(830~865) DEG C Time is realized and flexibly controls between iron scale thickness 7~16um, is respectively first three frame wind turbine after spinning from size sequence is influenced Quantity ＞ roller table speeds=laying temperature ＞ is opened into final rolling temperature, influence degree is respectively 12%, 9%, 9%, 3%.
2, the control technique of iron scale component：It is 880~935 DEG C by controlling laying temperature, phase transformation postcooling speed In 0.5~15 DEG C/s, it is 100~400 DEG C of three parameters that domination set, which rolls up temperature, for control, can control iron scale production component Ratio and FeO eutectoid reactions are realized to FeO:Fe3O4Weight ratio is 1:1 to 4:It is flexibly controlled between 1.
3, the control technique of iron scale underbead crack：Subtract sizing roll surface roughness Rz≤2um by control, controls For phase transformation postcooling speed control in 0.5~15 DEG C/s, domination set volume temperature, which is 100~400 DEG C of three parameters, can control oxidation It whether there is crackle inside iron sheet.
Iron scale underbead crack presence or absence is led to since iron scale internal stress and relative thickness difference codetermine Control phase transformation postcooling speed is crossed, the size of iron scale internal stress can be controlled；Iron scale thickness difference is by steel billet dephosphorization Quality and finish rolling finished product roller subtract the decision of sizing roll surface roughness, and iron scale relative thickness difference is iron scale thickness With the ratio of thickness difference, thickness difference more easy tos produce crackle.FeO occurs to also result in internal stress variation production when eutectoid reaction simultaneously Raw crackle.
4, the control technique of iron scale surface quality：By controlling 1050~1080 DEG C of billet heating temperature, heating is total 90~130min of time, wherein high temperature section heating time≤40min, furnace gas remaining oxygen≤3.0wt%, high pressure water dephosphorization after tapping >=15MPa, dephosphorization temperature are 1000~1050 DEG C, ensure steel billet dephosphorization quality and roll surface roughness Rz≤2um, reduce oxygen Change iron sheet to fall off problem.
By controlling the control of finish rolling rear water box cooling water water nozzle pressure in≤5.0Bar, 880~935 DEG C of laying temperature can To reduce surface red rust and iron scale air bubble problem.
Embodiment 1：The concrete technology of the flexible control method of this cord steel iron scale quality is as described below.
（1）Heating process：1060 DEG C of billet heating temperature is controlled, total time 90min, wherein high temperature section heating time are heated 30min, furnace gas remaining oxygen≤2.0wt%, high pressure water dephosphorization 15MPa after tapping, dephosphorization temperature are 1050 DEG C.
（2）Rolling process：Steel billet is by milling train in 6 passage roughing mills, 6 passages and 6 passage pre-finishing mill groups after dephosphorization, into Enter 8 passage mm finishing mill units and 4 passage reducing-sizing mills, control subtracts sizing roll surface roughness Rz≤1um, is into final rolling temperature 930 DEG C, finish rolling rear water box cooling water water nozzle pressure is controlled in 3.0Bar, 935 DEG C of laying temperature
（3）Cooling process：Into Stelmor cooling line, roller table speed 0.6m/s, first three frame wind turbine opens 1, into Enter high cooling rate section temperature（Air-cooled section）865 DEG C of temperature.865 DEG C of control to 625 DEG C of cooling velocities of wire rod phase transformation temperature points 15~ 20 DEG C/s, phase transformation postcooling 10~15 DEG C/s of speed control, domination set rolls up 100~200 DEG C of temperature, coils end to end not cold head tail It is required that removal is clean.
By Fig. 4,5 as it can be seen that the present embodiment obtained by Wire Rod Steel for Curtain String Purpose iron scale thickness 16um, iron scale thickness difference≤ 1.5um, FeO:Fe3O4=3:1, iron scale inside flawless, iron scale inside internal stress is larger, and eutectoid does not occur and turns by FeO Become, iron scale surface bubble-free, red rust, obscission, machinery dephosphorization is suitble to exempt from the iron oxide of pickling and mechanical dephosphorization+pickling Skin removing method.
Embodiment 2：The concrete technology of the flexible control method of this cord steel iron scale quality is as described below.
（1）Heating process：1080 DEG C of billet heating temperature is controlled, is heated total time 100min, when wherein high temperature section heats Between 35min, furnace gas remaining oxygen≤3.0wt%, high pressure water dephosphorization 17MPa after tapping, dephosphorization temperature be 1020 DEG C.
（2）Rolling process：Steel billet is by milling train in 6 passage roughing mills, 6 passages and 6 passage pre-finishing mill groups after dephosphorization, into Enter 8 passage mm finishing mill units and 4 passage reducing-sizing mills, control subtracts sizing roll surface roughness Rz≤2um, is into final rolling temperature 900 DEG C, finish rolling rear water box cooling water water nozzle pressure is controlled in 5.0Bar, 900 DEG C of laying temperature
（3）Cooling process：Into Stelmor cooling line, roller table speed 0.75m/s, first three frame wind turbine opens 2, into Enter high cooling rate section temperature（Air-cooled section）850 DEG C of temperature.850 DEG C of control to 625 DEG C of cooling velocities of wire rod phase transformation temperature points 20~ 25 DEG C/s, phase transformation postcooling 5~10 DEG C/s of speed control, domination set rolls up 300~400 DEG C of temperature, and cold head tail is not wanted end to end for coiling Ask removal clean.
By Fig. 6,7 as it can be seen that the present embodiment obtained by Wire Rod Steel for Curtain String Purpose iron scale thickness 10um, iron scale thickness difference≤ 1.5um, FeO:Fe3O4=3:1, iron scale inside flawless, iron scale inside internal stress is larger, and eutectoid does not occur and turns by FeO Become, iron scale surface bubble-free, red rust, obscission, is suitble to the iron scale removing method of machinery dephosphorization+pickling.
Embodiment 3：The concrete technology of the flexible control method of this cord steel iron scale quality is as described below.
（1）Heating process：1050 DEG C of billet heating temperature is controlled, is heated total time 130min, when wherein high temperature section heats Between 40min, furnace gas remaining oxygen≤2.0wt%, high pressure water dephosphorization 16MPa after tapping, dephosphorization temperature be 1000 DEG C.
（2）Rolling process：Steel billet is by milling train in 6 passage roughing mills, 6 passages and 6 passage pre-finishing mill groups after dephosphorization, into Enter 8 passage mm finishing mill units and 4 passage reducing-sizing mills, controls finishing mill finished product roller（Last 2 rolling mill roll）Surface roughness Rz≤2um is 880 DEG C into final rolling temperature, and finish rolling rear water box cooling water water nozzle pressure is controlled in 4.2Bar, 880 DEG C of laying temperature
（3）Cooling process：Into Stelmor cooling line, roller table speed 1.0m/s, first three frame wind turbine opens 3, into Enter high cooling rate section temperature（Air-cooled section）830 DEG C of temperature.830 DEG C are controlled to wire rod phase transformation temperature points（645℃）Cooling velocity is 18 ~22 DEG C/s, for phase transformation postcooling speed control between 0.5~5 DEG C/s, it is 200~300 DEG C that domination set, which rolls up temperature, coils head Cold head tail does not require removal clean to tail.
By Fig. 8,9 as it can be seen that the present embodiment obtained by Wire Rod Steel for Curtain String Purpose iron scale thickness 7um, iron scale thickness difference≤ 2um, FeO:Fe3O4=4:1, FeO occurs a small amount of eutectoid reaction, and there are crackles inside iron scale, and iron scale surface is without gas Bubble, red rust, obscission are suitble to the iron scale removing method of direct pickling.

Claims (2)

  1. Include heating, rolling and cooling process successively 1. a kind of flexible control method of cord steel iron scale quality, It is characterized in that：
    In the heating process, 1050~1080 DEG C of billet heating temperature is controlled, heats 90~130min of total time；Its high temperature Section heating time≤40min, furnace gas remaining oxygen≤3.0wt%；High pressure water dephosphorization >=15MPa after tapping, dephosphorization temperature be 1000~ 1050℃；
    It is 880~930 DEG C into final rolling temperature in the rolling process, 880~935 DEG C of laying temperature；Control subtracts sizing roll table Surface roughness Rz≤2um；
    In the cooling process, the roller table speed of Stelmor cooling line is 0.6~1.0m/s, first three frame wind turbine opens 1~3 Platform, first three frame fan section are cooled to 830~865 DEG C；The selection parameter in above-mentioned parameter realizes 7~16um of iron scale thickness Control；For phase transformation postcooling speed control in 0.5~15 DEG C/s, it is 100~400 DEG C that domination set, which rolls up temperature,；
    The selection parameter in above-mentioned parameter is realized to FeO:Fe3O4Weight ratio is 1:1 to 4:Oxidation is controlled and controlled between 1 It whether there is crackle inside iron sheet.
  2. 2. the flexible control method of cord steel iron scale quality according to claim 1, it is characterised in that：It is described to roll In process processed, finish rolling rear water box cooling water water nozzle pressure is controlled in≤5.0Bar.
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CN107695095A (en) * 2017-11-12 2018-02-16 湖南华菱湘潭钢铁有限公司 The production method of environment-friendly type high-carbon wire rod iron scale
CN109794515B (en) * 2019-01-28 2020-08-18 东北大学 Method for improving mechanical stripping performance of high-carbon steel wire rod iron scale
CN110328229B (en) * 2019-04-26 2020-12-01 武汉钢铁有限公司 Method for controlling thickness of scale of 70-grade cord steel wire rod suitable for mechanical descaling
CN111500934B (en) * 2020-06-09 2021-09-21 首钢集团有限公司 Fe in high-carbon steel scale3O4Content control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11172332A (en) * 1997-12-15 1999-06-29 Sumitomo Metal Ind Ltd High carbon steel wire rod
KR100711404B1 (en) * 2005-12-26 2007-04-30 주식회사 포스코 Method for manufacturing high carbon steel wire rod with excellent mechanical descalability
CN103320604A (en) * 2013-07-05 2013-09-25 武汉科技大学 Rolling preheating process for controlling sizes of titanium inclusions in hypereutectoid tire cord steel wire rod
CN103817148A (en) * 2013-12-19 2014-05-28 江苏省沙钢钢铁研究院有限公司 Control method for reducing network cementite of steel wire rod for cord thread

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11172332A (en) * 1997-12-15 1999-06-29 Sumitomo Metal Ind Ltd High carbon steel wire rod
KR100711404B1 (en) * 2005-12-26 2007-04-30 주식회사 포스코 Method for manufacturing high carbon steel wire rod with excellent mechanical descalability
CN103320604A (en) * 2013-07-05 2013-09-25 武汉科技大学 Rolling preheating process for controlling sizes of titanium inclusions in hypereutectoid tire cord steel wire rod
CN103817148A (en) * 2013-12-19 2014-05-28 江苏省沙钢钢铁研究院有限公司 Control method for reducing network cementite of steel wire rod for cord thread

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"帘线钢表面氧化优化工艺及控制机理研究";王丽萍等;《材料科学与工艺》;20140228;第94-98页 *

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