CN106862864A - A kind of technique for producing ocean engineering fastener - Google Patents

A kind of technique for producing ocean engineering fastener Download PDF

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Publication number
CN106862864A
CN106862864A CN201710086465.7A CN201710086465A CN106862864A CN 106862864 A CN106862864 A CN 106862864A CN 201710086465 A CN201710086465 A CN 201710086465A CN 106862864 A CN106862864 A CN 106862864A
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CN
China
Prior art keywords
wire
rod roll
rod
technique
ocean engineering
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Pending
Application number
CN201710086465.7A
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Chinese (zh)
Inventor
王长玉
张卫华
张冬萍
范军平
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Jiangsu Jiajie Special Screw Co Ltd
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Jiangsu Jiajie Special Screw Co Ltd
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.)
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Publication date
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Priority to CN201710086465.7A priority Critical patent/CN106862864A/en
Publication of CN106862864A publication Critical patent/CN106862864A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process

Abstract

The invention discloses a kind of technique for producing ocean engineering fastener, comprise the following steps:It is in round steel billet using pouring molten steel, heats round steel billet and round steel billet is carried out into rolling steel bar;The steel bar that will be obtained again carries out pre- finish rolling, finish rolling and obtains wire rod, and is changed into the wire-rod roll of ring shape using Laying head;Wire-rod roll to obtaining carries out reinforcing cooling, carries out a pickling, a phosphatization, a saponification and dries naturally;By annealing, line, forging rolling system or tapping are then taken out after white picking, secondary phosphatization, secondary saponification and forms products formed, finally carry out being packed after heat treatment is processed with surface coating.The fastener that production technology of the invention is obtained can be widely applied to the special industries such as nuclear power industry, high ferro carrier, Automobile Transportation industry, Aero-Space industry, petroleum chemical industry, with high rigidity, high intensity, the performance such as corrosion resistance is strong, inoxidizability is strong, reduce production cost, operating efficiency is improve, can be produced in batches.

Description

A kind of technique for producing ocean engineering fastener
Technical field
The present invention relates to fastener production, more particularly to a kind of technique for producing ocean engineering fastener.
Background technology
Fastener is typically used in every field as a kind of common part, but when fastener application to special industry When, such as nuclear power industry, high ferro carrier, automobile high to performance requirements such as its hardness, intensity, corrosion resistance, inoxidizability Carrier, Aero-Space industry, petroleum chemical industry etc..In the prior art, fastener is usually batch production, existing life The fastener that production. art will produce the high performance requirements of foregoing special industry is extremely difficult, while production cost is high, work Inefficiency.
The content of the invention
In view of the shortcomings of the prior art, the purpose of the present invention is that there is provided a kind of production ocean engineering fastening The technique of part, can be widely applied to nuclear power industry, high ferro carrier, Automobile Transportation industry, Aero-Space industry, oil The special industries such as industrial and commercial bank's industry, with high rigidity, high intensity, the performance such as corrosion resistance is strong, inoxidizability is strong, reduce and are produced into This, improves operating efficiency, can produce in batches.
To achieve these goals, the technical solution adopted by the present invention is such:One kind production ocean engineering fastening The technique of part, comprises the following steps:
(1)It is in round steel billet using pouring molten steel, and round steel billet is heated to 800 ~ 1000 DEG C, and round steel billet is carried out rolling Steel bar;
(2)To step(1)In the steel bar that obtains carry out pre- finish rolling, finish rolling and obtain wire rod and ring shape is changed into using Laying head Wire-rod roll;
(3)To step(2)The wire-rod roll for obtaining carries out reinforcing cooling, and 2 ~ 2.5L water/Kg steel is reached using specific water during cooling Technique;
(4)Wire-rod roll after cooling is put into pickling in hydrochloric acid pond of the density more than or equal to 130, washing is high after swinging 3 ~ 5 times Pressure water rinses residual acid well;
(5)By step(4)The middle wire-rod roll for having processed be put into total acidity for 150 ~ 200 points, free acid 15 ~ 25 point, total zinc amount In the phosphating pond of 50 ~ 80g/L, 80 ~ 100 DEG C are maintained the temperature at, phosphating time is 10 ~ 15min;Put after being rinsed again with water under high pressure Enter temperature more than or equal to saponification in 90 DEG C, saponification pond of the pH value more than or equal to 8, then dry naturally;
(6)The wire-rod roll that will be dried naturally is put into heating furnace and is heated slowly to 800 ~ 1000 DEG C, and keeps 3 ~ 5h, then by line Material wire rod in the heating furnace slow cooling to after less than 500 DEG C, from heating furnace taking out wire-rod roll naturally cools to normal temperature;
(7)By step(6)In wire-rod roll be put into normal temperature, concentration be 30 ~ 50% hydrochloric acid solution in 5 ~ 10min, cleaned with clear water Corrosion product in hydrochloric acid water, the wire-rod roll that then will have been processed successively is put into after forming epithelium in oxalic acid liquid, phosphoric acid saline solution It is secondary to be cleaned with clear water, and the wire-rod roll that will have been cleaned and metallic soap react to form metallic soap layer;
(8)By step(7)The wire-rod roll that middle treatment is completed first passes through continous way wire drawing machine and is slightly taken out and annealed, then by taking out Line machine is cold drawn to required line footpath;
(9)By the forged shape for reaching semi-finished product of wire-rod roll, length and thickness, then semi-finished product are rolled over system or tapping to reach To required screw thread, products formed is formed;
(10)By step(9)In products formed be heated to 800 ~ 900 DEG C after carry out Quenching Treatment, carry out height at 200 ~ 500 DEG C Temperature tempering is simultaneously rapidly cooled to 30 ~ 40 DEG C;
(11)Surface treatment:A protective layer is covered with the surface of products formed, and carries out packing treatment.
As a kind of preferred scheme, the step(1)Middle molten steel by round billet continuous casting machine pour into a mould, poring rate be 3.5 ~ 4m/min。
As a kind of preferred scheme, the step(7)In metallic soap be soda soap.
As a kind of preferred scheme, the step(9)In be forged to cold forging or heat between forge.
As a kind of preferred scheme, the step(10)Middle Quenching Treatment is using water, oil or air hardening.
As a kind of preferred scheme, the step(11)Middle surface treatment is using plating, galvanizing by dipping or mechanical plating.
Compared with prior art, beneficial effects of the present invention:The fastener that production technology of the invention is obtained can be extensive The special industries such as nuclear power industry, high ferro carrier, Automobile Transportation industry, Aero-Space industry, petroleum chemical industry are applied to, With high rigidity, high intensity, the performance such as corrosion resistance is strong, inoxidizability is strong, production cost is reduced, improves operating efficiency, Can produce in batches.
Specific embodiment
With reference to specific embodiment, the invention will be further described.Following examples are only used for clearly illustrating Technical scheme, and can not be limited the scope of the invention with this.
Embodiment 1:
A kind of technique for producing ocean engineering fastener, comprises the following steps:
(1)It is in round steel billet using pouring molten steel, and round steel billet is heated to 800 DEG C, and round steel billet is carried out into rolling steel bar;
(2)To step(1)In the steel bar that obtains carry out pre- finish rolling, finish rolling and obtain wire rod and ring shape is changed into using Laying head Wire-rod roll;
(3)To step(2)The wire-rod roll for obtaining carries out reinforcing cooling, reaches the work of 2L water/Kg steel during cooling using specific water Skill;
(4)By the wire-rod roll after cooling be put into density more than or equal to 130 hydrochloric acid pond in pickling, washing swing 3 times after high pressure Water rinses residual acid well;
(5)By step(4)It is 150 ~ point, 15 points of free acid, total zinc amount 50g/L that the middle wire-rod roll for having processed is put into total acidity In phosphating pond, 80 DEG C are maintained the temperature at, phosphating time is 10min;Temperature is put into after being rinsed again with water under high pressure more than or equal to 90 DEG C, pH value more than or equal to 8 saponification pond in saponification, then dry naturally;
(6)The wire-rod roll that will be dried naturally is put into heating furnace and is heated slowly to 800 DEG C, and keeps 3h, then by wire-rod roll Slow cooling is to after less than 500 DEG C in the heating furnace, and taking out wire-rod roll from heating furnace naturally cools to normal temperature;
(7)By step(6)In wire-rod roll be put into 5min in the hydrochloric acid solution that normal temperature, concentration are 30%, clean hydrochloric acid water with clear water In corrosion product, the wire-rod roll that then will have been processed successively is put into and secondary use after epithelium formed in oxalic acid liquid, phosphoric acid saline solution Clear water is cleaned, and the wire-rod roll that will have been cleaned reacts to form metallic soap layer with metallic soap;
(8)By step(7)The wire-rod roll that middle treatment is completed first passes through continous way wire drawing machine and is slightly taken out and annealed, then by taking out Line machine is cold drawn to required line footpath;
(9)By the forged shape for reaching semi-finished product of wire-rod roll, length and thickness, then semi-finished product are rolled over system or tapping to reach To required screw thread, products formed is formed;
(10)By step(9)In products formed be heated to 800 DEG C after carry out Quenching Treatment, carry out high tempering simultaneously at 200 DEG C It is rapidly cooled to 30 DEG C;
(11)Surface treatment:A protective layer is covered with the surface of products formed, and carries out packing treatment.
Embodiment 2:
A kind of technique for producing ocean engineering fastener, comprises the following steps:
(1)It is in round steel billet using pouring molten steel, and round steel billet is heated to 900 DEG C, and round steel billet is carried out into rolling steel bar;
(2)To step(1)In the steel bar that obtains carry out pre- finish rolling, finish rolling and obtain wire rod and ring shape is changed into using Laying head Wire-rod roll;
(3)To step(2)The wire-rod roll for obtaining carries out reinforcing cooling, and 2.25L water/Kg steel is reached using specific water during cooling Technique;
(4)By the wire-rod roll after cooling be put into density more than or equal to 130 hydrochloric acid pond in pickling, washing swing 4 times after high pressure Water rinses residual acid well;
(5)By step(4)The middle wire-rod roll for having processed be put into total acidity be 175 points, 20 points of free acid, total zinc amount 65g/L In phosphating pond, 90 DEG C are maintained the temperature at, phosphating time is 13min;Temperature is put into after being rinsed again with water under high pressure more than or equal to 90 DEG C, pH value more than or equal to 8 saponification pond in saponification, then dry naturally;
(6)The wire-rod roll that will be dried naturally is put into heating furnace and is heated slowly to 900 DEG C, and keeps 4h, then by wire-rod roll Slow cooling is to after less than 500 DEG C in the heating furnace, and taking out wire-rod roll from heating furnace naturally cools to normal temperature;
(7)By step(6)In wire-rod roll be put into 7.5min in the hydrochloric acid solution that normal temperature, concentration are 40%, clean hydrochloric acid with clear water Corrosion product in water, the wire-rod roll that then will have been processed successively is put into oxalic acid liquid, phosphoric acid saline solution and forms secondary after epithelium Cleaned with clear water, and the wire-rod roll that will have been cleaned reacts to form metallic soap layer with metallic soap;
(8)By step(7)The wire-rod roll that middle treatment is completed first passes through continous way wire drawing machine and is slightly taken out and annealed, then by taking out Line machine is cold drawn to required line footpath;
(9)By the forged shape for reaching semi-finished product of wire-rod roll, length and thickness, then semi-finished product are rolled over system or tapping to reach To required screw thread, products formed is formed;
(10)By step(9)In products formed be heated to 850 DEG C after carry out Quenching Treatment, carry out high tempering simultaneously at 350 DEG C It is rapidly cooled to 35 DEG C;
(11)Surface treatment:A protective layer is covered with the surface of products formed, and carries out packing treatment.
Embodiment 3:
A kind of technique for producing ocean engineering fastener, comprises the following steps:
(1)It is in round steel billet using pouring molten steel, and round steel billet is heated to 1000 DEG C, and round steel billet is carried out into rolling steel Bar;
(2)To step(1)In the steel bar that obtains carry out pre- finish rolling, finish rolling and obtain wire rod and ring shape is changed into using Laying head Wire-rod roll;
(3)To step(2)The wire-rod roll for obtaining carries out reinforcing cooling, and 2.5L water/Kg steel is reached using specific water during cooling Technique;
(4)By the wire-rod roll after cooling be put into density more than or equal to 130 hydrochloric acid pond in pickling, washing swing 5 times after high pressure Water rinses residual acid well;
(5)By step(4)The middle wire-rod roll for having processed be put into total acidity be 200 points, 25 points of free acid, total zinc amount 80g/L In phosphating pond, 100 DEG C are maintained the temperature at, phosphating time is 15min;Temperature is put into after being rinsed again with water under high pressure more than or equal to 90 DEG C, pH value more than or equal to 8 saponification pond in saponification, then dry naturally;
(6)The wire-rod roll that will be dried naturally is put into heating furnace and is heated slowly to 1000 DEG C, and keeps 5h, then by wire-rod roll Slow cooling is to after less than 500 DEG C in the heating furnace, and taking out wire-rod roll from heating furnace naturally cools to normal temperature;
(7)By step(6)In wire-rod roll be put into 10min in the hydrochloric acid solution that normal temperature, concentration are 50%, clean hydrochloric acid with clear water Corrosion product in water, the wire-rod roll that then will have been processed successively is put into oxalic acid liquid, phosphoric acid saline solution and forms secondary after epithelium Cleaned with clear water, and the wire-rod roll that will have been cleaned reacts to form metallic soap layer with metallic soap;
(8)By step(7)The wire-rod roll that middle treatment is completed first passes through continous way wire drawing machine and is slightly taken out and annealed, then by taking out Line machine is cold drawn to required line footpath;
(9)By the forged shape for reaching semi-finished product of wire-rod roll, length and thickness, then semi-finished product are rolled over system or tapping to reach To required screw thread, products formed is formed;
(10)By step(9)In products formed be heated to 900 DEG C after carry out Quenching Treatment, carry out high tempering simultaneously at 500 DEG C It is rapidly cooled to 40 DEG C;
(11)Surface treatment:A protective layer is covered with the surface of products formed, and carries out packing treatment.
The preferably step of the invention(1)Middle molten steel is poured into a mould by round billet continuous casting machine, and poring rate is 3.5 ~ 4m/min, is increased Operating efficiency is added.
The preferably step of the invention(7)In metallic soap be soda soap, increased lubricity.
The preferably step of the invention(9)In be forged to cold forging or heat between forge.
The preferably step of the invention(10)Middle Quenching Treatment is using water, oil or air hardening.
The preferably step of the invention(11)Middle surface treatment plays anti-corrosion using plating, galvanizing by dipping or mechanical plating Erosion is acted on, attractive in appearance.
In sum, the fastener for being obtained using production technology of the invention can be widely applied to nuclear power industry, high ferro The special industries such as carrier, Automobile Transportation industry, Aero-Space industry, petroleum chemical industry, with high rigidity, high intensity, The performance such as corrosion resistance is strong, inoxidizability is strong, reduces production cost, improves operating efficiency, can produce in batches.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, on the premise of the technology of the present invention principle is not departed from, some improvement and deformation can also be made, these improve and deform Also should be regarded as protection scope of the present invention.

Claims (6)

1. a kind of technique for producing ocean engineering fastener, it is characterised in that comprise the following steps:
(1)It is in round steel billet using pouring molten steel, and round steel billet is heated to 800 ~ 1000 DEG C, and round steel billet is carried out rolling Steel bar;
(2)To step(1)In the steel bar that obtains carry out pre- finish rolling, finish rolling and obtain wire rod and ring shape is changed into using Laying head Wire-rod roll;
(3)To step(2)The wire-rod roll for obtaining carries out reinforcing cooling, and 2 ~ 2.5L water/Kg steel is reached using specific water during cooling Technique;
(4)Wire-rod roll after cooling is put into pickling in hydrochloric acid pond of the density more than or equal to 130, washing is high after swinging 3 ~ 5 times Pressure water rinses residual acid well;
(5)By step(4)The middle wire-rod roll for having processed be put into total acidity for 150 ~ 200 points, free acid 15 ~ 25 point, total zinc amount In the phosphating pond of 50 ~ 80g/L, 80 ~ 100 DEG C are maintained the temperature at, phosphating time is 10 ~ 15min;Put after being rinsed again with water under high pressure Enter temperature more than or equal to saponification in 90 DEG C, saponification pond of the pH value more than or equal to 8, then dry naturally;
(6)The wire-rod roll that will be dried naturally is put into heating furnace and is heated slowly to 800 ~ 1000 DEG C, and keeps 3 ~ 5h, then by line Material wire rod in the heating furnace slow cooling to after less than 500 DEG C, from heating furnace taking out wire-rod roll naturally cools to normal temperature;
(7)By step(6)In wire-rod roll be put into normal temperature, concentration be 30 ~ 50% hydrochloric acid solution in 5 ~ 10min, cleaned with clear water Corrosion product in hydrochloric acid water, the wire-rod roll that then will have been processed successively is put into after forming epithelium in oxalic acid liquid, phosphoric acid saline solution It is secondary to be cleaned with clear water, and the wire-rod roll that will have been cleaned and metallic soap react to form metallic soap layer;
(8)By step(7)The wire-rod roll that middle treatment is completed first passes through continous way wire drawing machine and is slightly taken out and annealed, then by taking out Line machine is cold drawn to required line footpath;
(9)By the forged shape for reaching semi-finished product of wire-rod roll, length and thickness, then semi-finished product are rolled over system or tapping to reach To required screw thread, products formed is formed;
(10)By step(9)In products formed be heated to 800 ~ 900 DEG C after carry out Quenching Treatment, carry out height at 200 ~ 500 DEG C Temperature tempering is simultaneously rapidly cooled to 30 ~ 40 DEG C;
(11)Surface treatment:A protective layer is covered with the surface of products formed, and carries out packing treatment.
2. a kind of technique for producing ocean engineering fastener according to claim 1, it is characterised in that:The step (1)Middle molten steel is poured into a mould by round billet continuous casting machine, and poring rate is 3.5 ~ 4m/min.
3. a kind of technique for producing ocean engineering fastener according to claim 1, it is characterised in that:The step (7)In metallic soap be soda soap.
4. a kind of technique for producing ocean engineering fastener according to claim 1, it is characterised in that:The step (9)In be forged to cold forging or heat between forge.
5. a kind of technique for producing ocean engineering fastener according to claim 1, it is characterised in that:The step (10)Middle Quenching Treatment is using water, oil or air hardening.
6. a kind of technique for producing ocean engineering fastener according to claim 1, it is characterised in that:The step (11)Middle surface treatment is using plating, galvanizing by dipping or mechanical plating.
CN201710086465.7A 2017-02-17 2017-02-17 A kind of technique for producing ocean engineering fastener Pending CN106862864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN201710086465.7A CN106862864A (en) 2017-02-17 2017-02-17 A kind of technique for producing ocean engineering fastener

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1443946A (en) * 2003-04-17 2003-09-24 南京汽车集团有限公司 Production process of high strength bolt with above 1300MPa
CN101514423A (en) * 2009-03-27 2009-08-26 武汉钢铁(集团)公司 Aluminiferous low-carbon cold heading wire rod steel and production method thereof
CN102861782A (en) * 2012-10-31 2013-01-09 东莞市科力钢铁线材有限公司 Manufacturing process of screw wires
CN104213033A (en) * 2014-09-03 2014-12-17 马钢(集团)控股有限公司 60-steel hot rolling coil rod with high strength and high plasticity and production method thereof
CN104439984A (en) * 2014-12-17 2015-03-25 常熟市华星精密铸件有限公司 Machining process of aviation screw
CN105798546A (en) * 2016-03-25 2016-07-27 大连新锋钢管厂 Production process of fastening hoop

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1443946A (en) * 2003-04-17 2003-09-24 南京汽车集团有限公司 Production process of high strength bolt with above 1300MPa
CN101514423A (en) * 2009-03-27 2009-08-26 武汉钢铁(集团)公司 Aluminiferous low-carbon cold heading wire rod steel and production method thereof
CN102861782A (en) * 2012-10-31 2013-01-09 东莞市科力钢铁线材有限公司 Manufacturing process of screw wires
CN104213033A (en) * 2014-09-03 2014-12-17 马钢(集团)控股有限公司 60-steel hot rolling coil rod with high strength and high plasticity and production method thereof
CN104439984A (en) * 2014-12-17 2015-03-25 常熟市华星精密铸件有限公司 Machining process of aviation screw
CN105798546A (en) * 2016-03-25 2016-07-27 大连新锋钢管厂 Production process of fastening hoop

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