SU1674689A3 - Roller steel treatment method - Google Patents

Roller steel treatment method Download PDF

Info

Publication number
SU1674689A3
SU1674689A3 SU884356320A SU4356320A SU1674689A3 SU 1674689 A3 SU1674689 A3 SU 1674689A3 SU 884356320 A SU884356320 A SU 884356320A SU 4356320 A SU4356320 A SU 4356320A SU 1674689 A3 SU1674689 A3 SU 1674689A3
Authority
SU
USSR - Soviet Union
Prior art keywords
carried out
coating
cooling
water
rolled
Prior art date
Application number
SU884356320A
Other languages
Russian (ru)
Inventor
Айхер Макс
Original Assignee
Штальверк Аннахютте Макс Айхер Гмбх Унд Ко, Кг (Фирма)
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 Штальверк Аннахютте Макс Айхер Гмбх Унд Ко, Кг (Фирма) filed Critical Штальверк Аннахютте Макс Айхер Гмбх Унд Ко, Кг (Фирма)
Application granted granted Critical
Publication of SU1674689A3 publication Critical patent/SU1674689A3/en
Priority to LV930903A priority Critical patent/LV5416A3/en
Priority to LTRP1020A priority patent/LT2587B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B21B2001/383—Cladded or coated products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Laminated Bodies (AREA)

Abstract

Изобретение касаетс  обработки стального проката, в частности арматурной стали, арматурной проволоки или тому подобных изделий, с нанесением покрытий из цветного металла, преимущественно цинка, причем с проката после нагрева сначала удал ют окалину и затем при исключении образовани  новой окалины на гор чий прокат наноситс  покрытие. Цель изобретени  - повышение коррозионной стойкости. В процессе обработки стальной прокат в непрерывном продолжении процесса прокатки подвергаетс  обработке водой высокого давлени , при этом с поверхности удал етс  окалина, непосредственно после этого дл  предотвращени  образовани  новой окалины с использованием воды давлением 200 - 1000 бар поверхность проката охлаждаетс  до температуры ниже 600°С. Это позвол ет упростить процесс. 6 з.п. ф-лы.The invention relates to the processing of rolled steel, in particular reinforcing steel, reinforcing wire or the like, with the application of coatings of non-ferrous metal, mainly zinc, and scale is first removed from the rolled stock after heating and then, with the exception of the formation of new scale, hot rolled products are coated . The purpose of the invention is to improve corrosion resistance. In the course of treatment, the rolled steel is subjected to high-pressure water treatment in the continuous continuation of the rolling process, while scale is removed from the surface, immediately after that, to prevent the formation of new scale, using water at a pressure of 200-1000 bar, the surface of the rolled product is cooled to a temperature below 600 ° C. This simplifies the process. 6 w.p. f-ly.

Description

Способ осуществл ют следующим образомThe method is carried out as follows.

Со стального проката при непрерывно продолжающемс  процессе прокатки удал ют окалину. Прокат подвергают обработке водой под давлением, при этом поверхность стали непосредственно после удалени  окалины дл  предотвращени  образовани  новой окалины с помощью воды быстро охлаждают до температуры ниже 6СО°С, после чего нанос т покрытие.Scale is removed from rolled steel with a continuous rolling process. Rolled is treated with water under pressure, while the surface of the steel immediately after the removal of scale to prevent the formation of new scale with water is rapidly cooled to a temperature below 6 ° C, after which the coating is applied.

Преимущество изобретени  заключаетс  прежде всего в том, что дл  удалени  окалины, предотвращени  образовани  новой окалины и охлаждени  примен етс  одна среда, а именно вода, благодар  чему охлаждение можно вести так, что прокат ный нагрев оптимально используетс  дл  нанесени  покрыти , все операции по реализации способа или процессы обработки осуществл ютс  при непрерывно продолжающемс  процессе прокатки и их можно вести гри такой скорости прокатки, что конечный продукт сходит с производственной пинии так же. как не прошедший обработку прокат.The advantage of the invention lies primarily in the fact that a single medium, namely water, is used to remove scale, prevent the formation of new scale and cooling, so that cooling can be carried out so that rolling heating is optimally used for coating or the processes are carried out with a continuous rolling process and they can be driven with such a rolling speed that the final product leaves the production line as well. as not processed hire.

При обработке поверхности стали во- дой под очень высоким давлением образовавша с  и- прокате окалина, котора  при д .формировании в последней ю.ети, напри- . ер пои переходе от овального к круглому попаречнлму сечению, уже получила разрыхление , полностью и легко удал етс  с поверхности проката. Давление воды должно быть выше 200 бар, преим/i .естаенно бар, а при необходимости может быть повышено до 1000 бар Этого требует очень коротка  обработка, а именно проход проката через распылительное сопло, в ре- чультате чего будет очень незначительно снижена температура стального проката.When the surface of the steel was treated with water under very high pressure, the scale generated with i-hire, which, when formed, is in the last Yu network, for example. The transition from the oval to the circular cross section, which has already received loosening, is completely and easily removed from the rental surface. The water pressure should be above 200 bar, preferably / i is naturally bar, and if necessary can be increased to 1000 bar. This requires very short treatment, namely the passage of the car through the spray nozzle, as a result of which the temperature of the steel bar will be very slightly reduced. .

Удаление окалины с помощью воды под давлением осуществл етс  при 900- 1000°С, Согласно изобретению в продолжении обработки водой в непрерывном процессе с применением той же среды ведетс  охлаждение, причем так что температура образовани  окалины около 600°С - быстро снижаетс , чтобы не произошло образовани  новой окалины, и дмстигает температуры , при которой может быть нанесено покрытие С этой целью прокат можно пропускать через вод ную баню или распыл ть воду из форсунки Соответствующа  температура дл  нанесени  коррозионно-стойких покрытий составл ет, например, дл  чистого алюмини  560-570°С. а дл  чистого цинка около 415°С При легировании могут создаватьс  промежуточные ступени. Дл  легировани  можно примен ть любоеDescaling using water under pressure is carried out at 900-1000 ° C. According to the invention, the continuation of treatment with water in a continuous process using the same medium leads to cooling, and so that the formation of scale about 600 ° C decreases rapidly to avoid forming a new scale, and setting the temperature at which the coating can be applied. To this end, rental can be passed through a water bath or sprayed from a nozzle. Appropriate temperature for applying corrosion-resistant coatings. The yield is, for example, for pure aluminum at 560-570 ° C. for pure zinc, about 415 ° C. When doping, intermediate stages can be created. For doping, you can use any

покрытие, так как прокатываемый материал проходит все области температуры от прокатного нагрева до полного охлаждени . Нанесение покрыти  осуществл ют любым способом. Цветной металл, образующий покрытие, может быть нанесен в форме порошка, при этом он расплавл етс , прокат можно также пропускать через ванну с жидким цветным металлом.the coating, as the material being rolled goes through all the temperature ranges from rolling heat to full cooling. The coating is carried out by any method. The non-ferrous metal forming the coating can be applied in the form of a powder, while it melts, rolling can also be passed through a bath with a liquid non-ferrous metal.

0 Обработка водой обеспечивает защиту проката после удалени  окалины о г образовани  новой окалины а также защиту сло  нанесенного покрыти  до полною охлаждени  проката. Во многих случа х на покры5 т и е, например, из цинка нанос т добавочную защиту в виде еше одного сло  из синтетической смолы например, эпоксидной . Эти г процесс может быь интпгри- рован в предлагаемом способе с0 Water treatment ensures the protection of the rolled stock after descaling and the formation of a new scale, as well as the protection of the layer of the applied coating until the full cooling of the rolled product. In many cases, additional protection in the form of another layer of synthetic resin, for example, epoxy, is applied to the coating, for example, from zinc. These processes can be integrated in the proposed method with

0 игпользованиом остаточчогс тепла.0 by using residual heat.

Охлаждение проста согласно изобретению после удалени  окалины можно осу- ществл гь любым и, известных способов термической обработки, в котором исполь5 зуетс  вода, например способом, известным под названием Тетрсоге дл  бедных углеоог м и пригсд )ых дп° сварки арматурных сталей, при клтором cr-рзботка водой осуществл ете так. что в прокате непос0 родственно после закалки образуетс  краева  зона из мартенсита и бейнита. в то врем  как теплота, оставша с  в сердечнике стали во врем  последующего охлаждени , не позвол ет перейти при отпускеCooling is simple according to the invention after descaling can be carried out by any and known heat treatment methods in which water is used, for example, by the method known as Tetroger for poor coal and welding of reinforcing steel, with clor cr - use water as follows. that in the rolled product, immediately after quenching, the marginal zone is formed of martensite and bainite. while the heat left in the core of the steel during the subsequent cooling does not allow transition during tempering

5 краевой зоны через бейнитовую структуру. Обработку нодой высокоуглеродистых пригодных дл  использовани  в качестве нат жной арматуры сталей осуществл ют так, что от конечной температуры прокатки меж0 AV 860 и 1060°С при их охлаждении в пограничном спое образуетс  полностью мартенситова  структура и температура пограничного сло  вследствие выравнивани  температуры в промежуток времени 2-6 с5 edge zone through bainitic structure. The high carbon steel suitable for use as tension reinforcement steels are processed so that from the final rolling temperature between AV 860 and 1060 ° C while cooling in the boundary joint, a fully martensitic structure and the temperature of the boundary layer are formed due to temperature equalization in time 2- 6 s

5 после начала процесса охлаждени  составл ет 400-500иС Охлаждение, проводимое согласно изобретению, используетс  преимущественно дл  повышени  прочности стали.5 after the start of the cooling process is 400-500 ° C. The cooling carried out according to the invention is advantageously used to increase the strength of the steel.

0 Преимуществом изобретени   вл етс  то, что все рабочие процессы осуществл ютс  по непрерывно идущему, примыкающему непосредственно к процессу прокатки циклу в отдельной, расположенной за послед5 ней клетью установке по обработке стали. Процесс прокатки заготовок, который ведетс  прерывисто до момента выхода их из последней клети, может быть превращен в непрерывный за счет предварительного свл )ивани  заготовок (преимущественно путем контактной стыковой сварки) в зоне между выходом из печи или из клети трио и первым пропуском линии тонкой прокатки0 The advantage of the invention is that all work processes are carried out along a continuously running, adjacent directly to the rolling process cycle in a separate steel processing plant located behind the last stand. The process of rolling billets, which is conducted intermittently until they leave the last stand, can be turned into continuous by pre-bonding the workpieces (mainly by butt welding) in the zone between the exit from the furnace or the trio stand and the first pass of the thin rolling line.

Claims (7)

Формула изобретени  1. Способ обработки стального прока- та, преимущественно арматурной стали, проволоки, включающий удаление окалины с проката, поступающего с прокатного нагрева после деформации, нанесение покрыти  из цветного металла, предпочти- тельно цинка, о т л и чающийс  тем, что, с целью повышени  коррозионной стойкости, непосредственно после удалени  окалины осуществл ют непрерывное охлаждение поверхности проката до темпе- ратур нанесени  покрыти  ниже 600°С, при этом охлаждение провод т водой под давлением 200-1000 бар, преимущественно в пределах 300-400 бар.Claim 1. A method for treating steel rolled stock, predominantly reinforcing steel, wire, including removing scale from rolled products coming from rolling heat after deformation, applying a non-ferrous metal coating, preferably zinc, that is in order to increase the corrosion resistance, immediately after descaling, the rolling surface is continuously cooled to the coating temperatures below 600 ° C, while cooling is carried out with water under a pressure of 200-1000 bar, but in the range of 300-400 bar. 2. Способ по п. 1,отличающийс  тем, что охлаждение провод т путем транспортировани  проката через емкость с водой .2. A method according to claim 1, characterized in that the cooling is carried out by transporting the rental through a container with water. 3.Способ по п.1, отличающийс  тем, что обработку водой осуществл ют посредством форсунок.3. A method according to claim 1, characterized in that the treatment with water is carried out by means of nozzles. 4.Способ по п.1,отличающийс  тем, что нанесение покрыти  осуществл ют путем напылени  порошкового металла.4. A method according to claim 1, characterized in that the coating is carried out by spraying a powdered metal. 5.Способ по п.1, отличающийс  тем, что нанесение покрыти  осуществл ют путем пропускани  проката через ванну с расплавом.5. A method according to claim 1, characterized in that the coating is carried out by passing the car through a bath with the melt. 6.Способ по п.1,отличающийс  тем, что на покрытие нанос т дополнительный слой, например, из эпоксидной смолы.6. A method according to claim 1, characterized in that an additional layer, for example epoxy resin, is applied to the coating. 7.Способ по п.1.отличающийс  тем, что охлаждение поверхности проката осуществл ют до образовани  в ней мартенсита или бейнита.7. A method according to claim 1, characterized in that the cooling of the rolling surface is carried out before the formation of martensite or bainite therein.
SU884356320A 1987-09-01 1988-08-26 Roller steel treatment method SU1674689A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
LV930903A LV5416A3 (en) 1987-09-01 1993-06-30 Seeding of the rolling mill
LTRP1020A LT2587B (en) 1987-09-01 1993-09-21 THE ROLE OF ROLLED STEEL PROCESSING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3729177A DE3729177C1 (en) 1987-09-01 1987-09-01 Process for treating rolled steel to increase resistance to corrosion

Publications (1)

Publication Number Publication Date
SU1674689A3 true SU1674689A3 (en) 1991-08-30

Family

ID=6334972

Family Applications (1)

Application Number Title Priority Date Filing Date
SU884356320A SU1674689A3 (en) 1987-09-01 1988-08-26 Roller steel treatment method

Country Status (15)

Country Link
EP (1) EP0305914B1 (en)
JP (1) JPS6475692A (en)
CN (1) CN1031724A (en)
AT (1) ATE70568T1 (en)
CA (1) CA1306391C (en)
DD (1) DD282246A5 (en)
DE (2) DE3729177C1 (en)
DK (1) DK460688A (en)
ES (1) ES2028964T3 (en)
GR (1) GR3004067T3 (en)
HU (1) HU203586B (en)
NO (1) NO176578C (en)
PL (1) PL158408B1 (en)
PT (1) PT88371B (en)
SU (1) SU1674689A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2573304C2 (en) * 2014-03-11 2016-01-20 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования Пензенскй государственный университет архитектуры и строительства Increasing life and hardness of rod- and pipe-type reinforcements
DE202016008333U1 (en) 2016-04-08 2017-08-01 Andrey Senokosov Device for cleaning riser pipes, in particular in petroleum equipment

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005964A6 (en) * 1992-06-29 1994-04-05 Centre Rech Metallurgique Protection method of hot rolled steel product.
GB2313382A (en) * 1996-05-23 1997-11-26 Vidal Henri Brevets Metal coating
DE19828827C1 (en) * 1998-06-27 2000-07-20 Grillo Werke Ag Thermal sprayed corrosion layer for reinforced concrete and method of manufacturing the same
DE102004059008A1 (en) * 2004-12-08 2006-06-14 Volkswagen Ag Coating metal components comprises selectively applying a less noble metal than that of the component
CN102912692A (en) * 2012-10-29 2013-02-06 厦门新钢金属制品有限公司 Ballastless track slab insulating bar reinforcement with composite coating
CN202925384U (en) * 2012-10-29 2013-05-08 厦门新钢金属制品有限公司 Complex coating ballastless track board insulation reinforcing steel bar
US20150218815A1 (en) * 2014-01-31 2015-08-06 Mortar Net Usa, Ltd. Corrosion resistant structural reinforcement member
CN104878332B (en) * 2015-06-03 2017-08-01 河北钢铁股份有限公司邯郸分公司 A kind of raising production method of the hot radical galvanized sheet with product decay resistance
CN106001133B (en) * 2016-07-16 2018-02-27 太原科技大学 It is formed with the rollgang of sagging exposed electric wire cathodic protection
CN106040755B (en) * 2016-07-16 2018-02-27 太原科技大学 Cathodic protection rollgang equipped with conductive carrying roller
CN107794476A (en) * 2017-09-11 2018-03-13 常熟市双羽铜业有限公司 A kind of corrosion resisting steel structural member
CN109821923A (en) * 2019-02-26 2019-05-31 桂林理工大学 A kind of production method of anti-corrosion coating plain bar
CN115261733B (en) * 2022-08-18 2023-06-06 攀钢集团攀枝花钢铁研究院有限公司 Abrasion-resistant corrosion-resistant steel rail for subway and production method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442485A (en) * 1944-06-24 1948-06-01 Frederick C Cook Method of descaling and coating hot-rolled ferrous metal
DE1602129B1 (en) * 1967-06-21 1970-08-27 Roechlingsche Eisen & Stahl Cooling pipe for cooling rolled material
DE2108314A1 (en) * 1970-08-05 1972-02-10 VEB Schwermaschinenbau-Kombinat Ernst Thallmann Magdeburg, χ 3011 Magdeburg Rapid cooling rolled rod - of structural steel by a controlled - water quench method
DE2353034B2 (en) * 1972-10-31 1980-03-13 Centre De Recherches Metallurgiques- Centrum Voor Research In De Metallurgie, Bruessel Process for improving the mechanical strength values of rolled steel products
DE3125146A1 (en) * 1981-06-26 1983-01-13 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Device for descaling hot steel ingots

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2573304C2 (en) * 2014-03-11 2016-01-20 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования Пензенскй государственный университет архитектуры и строительства Increasing life and hardness of rod- and pipe-type reinforcements
RU2573304C9 (en) * 2014-03-11 2016-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Пензенский государственный университет архитектуры и строительства Increasing life and hardness of rod- and pipe-type reinforcements
DE202016008333U1 (en) 2016-04-08 2017-08-01 Andrey Senokosov Device for cleaning riser pipes, in particular in petroleum equipment
DE102016106421A1 (en) 2016-04-08 2017-10-12 Andrey Senokosov Cleaning process for riser pipes and equipment therefor

Also Published As

Publication number Publication date
DK460688A (en) 1989-03-02
PL274389A1 (en) 1989-04-17
DK460688D0 (en) 1988-08-17
GR3004067T3 (en) 1993-03-31
JPS6475692A (en) 1989-03-22
EP0305914A3 (en) 1989-08-09
JPH0445591B2 (en) 1992-07-27
HU203586B (en) 1991-08-28
CA1306391C (en) 1992-08-18
ES2028964T3 (en) 1992-07-16
DE3866998D1 (en) 1992-01-30
EP0305914A2 (en) 1989-03-08
DD282246A5 (en) 1990-09-05
NO883781D0 (en) 1988-08-24
HUT52178A (en) 1990-06-28
PT88371B (en) 1993-02-26
EP0305914B1 (en) 1991-12-18
NO883781L (en) 1989-03-02
CN1031724A (en) 1989-03-15
DE3729177C1 (en) 1989-01-05
PL158408B1 (en) 1992-08-31
ATE70568T1 (en) 1992-01-15
NO176578B (en) 1995-01-16
PT88371A (en) 1989-07-31
NO176578C (en) 1995-04-26

Similar Documents

Publication Publication Date Title
SU1674689A3 (en) Roller steel treatment method
US5554235A (en) Method of and process for cold-rolling of stainless-steel and titanium-alloy strip
US4168993A (en) Process and apparatus for sequentially forming and treating steel rod
US4242153A (en) Methods for hot rolling and treating rod
US4527408A (en) Method and Apparatus for cooling and handling hot rolled steel rod in direct sequence with a high speed rolling operation
AU1618983A (en) Manufacture of steel sheets for the production of large diameter pipes seam welded longitudinally
EP0582180B1 (en) Heat treatment process for wire rods
JP3175111B2 (en) Manufacturing method of tough direct patented wire rod
CN1147019A (en) Bluing and low-carbon martensite heat treatment of high strength building steel bar
CN111172368A (en) Process and circulation system combining steel wire hot rolling and sorbitizing treatment
RU2040556C1 (en) Method of making strips of low-carbon hot rolled steel
KR100985370B1 (en) Continuous Hot-dip Coating Line of Hot Rolled Steel Strip and Method for Continuous Hot-dip Coating Hot Rolled Steel Strip
SU1715882A1 (en) Method of depositing aluminum coat on moving rolled steel
SU1122718A1 (en) Method for treating welded joints of austenite corrosion resistance steels
GB2194186A (en) Method of rolling steel workpieces
JPS5518562A (en) Method and apparatus for manufacturing galvanized steel strip for deep drawing
JPS63174719A (en) Scale removing method for wire rod
RU1786115C (en) Process for producing heat treated rolled low-carbon and low-alloy steels
JPS6021318A (en) Production of tempered high tensile steel
JPS5983784A (en) Multi-purpose continuous acid-pickling apparatus
JPH0242007B2 (en)
JPH0387312A (en) Steel hardening using liquid cooling medium
JPS58120715A (en) Hardening method for steel products
JPH06264150A (en) Direct heat treatment method of wire rod
JPS619919A (en) Continuous descaling method of steel strip