CN107937830A - A kind of production technology of corrosion-resistant bolt - Google Patents

A kind of production technology of corrosion-resistant bolt Download PDF

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Publication number
CN107937830A
CN107937830A CN201711359549.XA CN201711359549A CN107937830A CN 107937830 A CN107937830 A CN 107937830A CN 201711359549 A CN201711359549 A CN 201711359549A CN 107937830 A CN107937830 A CN 107937830A
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bolt
corrosion
resistant
production technology
surplus
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Inventor
刘浩
张君
张欢芬
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Suzhou Hao Yan Precision Mold Ltd Co
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Suzhou Hao Yan Precision Mold Ltd Co
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Priority to CN201711359549.XA priority Critical patent/CN107937830A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/131—Wire arc spraying
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/222—Magnesia, i.e. magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The present invention relates to a kind of production technology of corrosion-resistant bolt, belong to fastening or fixing component technical field.The production technology of the corrosion-resistant bolt, comprises the following steps：(i) dispensing；(ii) cylindrical blank is prepared；(iii) cold-heading；(iv) threading；(v) bolt is heat-treated；(vi) pickling；(vii) spray；(viii) screw head side wrap high flame resistance cross-linking radiation polyolefine material protective layer.The production technology of corrosion-resistant bolt of the present invention uses Al in dispensing as primary raw material, by adding other metals such as a variety of rare earth metals and Fe, Zn, Ti so that quality that bolt itself had not only mitigated but also has enough intensity and heat and corrosion resistant performance.By the cross-linking radiation polyolefine material protective layer of the side wrap high flame resistance in screw head, the fire resistant flame retardant performance of bolt is improved, ensure that the stability used.

Description

A kind of production technology of corrosion-resistant bolt
Technical field
The present invention relates to a kind of production technology of corrosion-resistant bolt, belong to fastening or fixing component technical field.
Background technology
Fastener is to fasten two or more parts（Or component）It is fastenedly connected used when becoming an entirety The general name of a kind of machine components, is widely used in various machineries, equipment, vehicle, ship, railway, bridge, building, structure, work Above, its feature is that description is various, and performance purposes is different for tool, instrument, chemical industry, instrument and articles for use etc., and standardize, Seriation, unitized degree are also high.
Bolt is a kind of most common fastening part, using object inclined-plane circular rotating and frictional force physics and Mathematical principle, the instrument of incremental fastening implements parts；In the Assembling Production of automobile, bolt is also frequently used, special Be not in enging cabin, for components such as stationary engines, due in enging cabin in use often in the condition of high temperature, Bolt is often subject to high temperature and moist overcast and rainy invasion and attack wherein, tends to be corroded and gets rusty.
The content of the invention
The technical problem to be solved in the present invention is in view of the shortcomings of the prior art, proposing a kind of service life length, be not easy rotten The production technology of the corrosion-resistant bolt of erosion.
The present invention is to solve the technical solution that above-mentioned technical problem proposes to be：A kind of production technology of corrosion-resistant bolt, bag Include following steps：
(i) dispensing：The mass percent of each component is in corrosion-resistant bolt：C：0.05-0.08%, Al:1.55-1.87%,Zn: 1.12-1.34%,Mn：0.55-0.74%, Cr：0.03-0.07%, Ni：0.12-0.24%, Mo：0.06-0.13%, Ti：1.16- 1.27%, Pd：0.33-0.48%,Pt：0.05-0.12%,Nd：0.04-0.12%,Ce：0.11-0.14%,Eu：0.03-0.14%, Lu:0.01-0.02%, Sn：0.35-0.57%, Zr：0.02-0.04%, Re：0.05-0.13%, surplus Fe；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：Cylindrical blank is subjected to cold-heading molding using cold-heading equipment, is molded the screw head and spiral shell to form bolt Bar；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment；
(v) bolt is heat-treated；
(vi) pickling：Bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and soaks 10-15min, after cleaned with clear water, then put It is to soak 5-8min in 1-2% phosphate solutions in concentration, is finally cleaned with clear water；
(vii) spray：Using Ultrasonic Arc Sprayed bolt surface spraying pure aluminum coating, pure aluminum coating coating thickness for 50 ± 15μm；
(viii) screw head side wrap high flame resistance cross-linking radiation polyolefine material protective layer, be made corrosion-resistant bolt；
The mass percent of each component is in the cross-linking radiation polyolefine material protective layer of high flame resistance：Aluminium oxide 5-8%, oxygen Change magnesium 4-6%, polymeric plasticizer 15-19%, antioxidant 1-2%, sensitizer 6-8%, sensitizer 0.1-1%, fire retardant 1- 4%th, colouring agent 5-9%, surplus are crosslinkable polyolefin base-material.
The improvement of above-mentioned technical proposal is：Step (i) in corrosion-resistant bolt the mass percent of each component be：C： 0.05%, Al:1.55%,Zn:1.12%,Mn：0.55%, Cr：0.03%, Ni：0.12%, Mo：0.06%, Ti：1.16%, Pd： 0.33%,Pt：0.05%,Nd：0.04%,Ce：0.11%,Eu：0.03%,Lu:0.01%, Sn：0.35%, Zr：0.02%, Re： 0.05%, surplus Fe.
The improvement of above-mentioned technical proposal is：Step (i) in corrosion-resistant bolt the mass percent of each component be：C： 0.08%, Al:1.87%,Zn:1.34%,Mn：0.74%, Cr：0.07%, Ni：0.24%, Mo：0.13%, Ti：1.27%, Pd： 0.48%,Pt：0.12%,Nd：0.12%,Ce：0.14%,Eu：0.14%,Lu:0.02%, Sn：0.57%, Zr：0.04%, Re： 0.13%, surplus Fe.
The improvement of above-mentioned technical proposal is：Step is (viii) each in the cross-linking radiation polyolefine material protective layer of middle high flame resistance The mass percent of component is：Aluminium oxide 6%, magnesia 5%, polymeric plasticizer 16%, antioxidant 1%, sensitizer 7%, Sensitizer 0.5%, fire retardant 2%, colouring agent 6%, surplus are crosslinkable polyolefin base-material.
It is of the invention to be using the beneficial effect of above-mentioned technical proposal：
（1）The production technology of the corrosion-resistant bolt of the present invention uses Al in dispensing as primary raw material, by adding a variety of rare earths Other metals such as metal and Fe, Zn, Ti so that quality that bolt itself had not only mitigated but also have enough intensity and heat/corrosion resistance Energy；
（2）In the production technology of the corrosion-resistant bolt of the present invention, revolution can be made on the premise of proof strength by carrying out heat treatment Austenite is enriched with enough alloying element, makes few net carbide, is more uniformly distributed tissue, can holding structure stablize, into One step strengthens contact fatigue strength and impact flexibility；
（3）By spraying pure aluminum coating in the production technology of the corrosion-resistant bolt of the present invention, the corrosion resistance of bolt is improved, Extend service life；
（4）Pass through the cross-linking radiation of the side wrap high flame resistance in screw head in the production technology of the corrosion-resistant bolt of the present invention Polyolefine material protective layer, improves the fire resistant flame retardant performance of bolt, ensure that the stability used.
Embodiment
Embodiment one
The production technology of the corrosion-resistant bolt of the present embodiment, comprises the following steps：
(i) dispensing：The mass percent of each component is in corrosion-resistant bolt：C：0.05%, Al:1.55%,Zn:1.12%,Mn： 0.55%, Cr：0.03%, Ni：0.12%, Mo：0.06%, Ti：1.16%, Pd：0.33%,Pt：0.05%,Nd：0.04%,Ce： 0.11%,Eu：0.03%,Lu:0.01%, Sn：0.35%, Zr：0.02%, Re：0.05%, surplus Fe；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：Cylindrical blank is subjected to cold-heading molding using cold-heading equipment, is molded the screw head and spiral shell to form bolt Bar；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment；
(v) bolt is heat-treated；
(vi) pickling：Bolt after tempering is placed in the hydrochloric acid that concentration is 6% and soaks 13min, after cleaned with clear water, then be placed in dense Spend to soak 6min in 1% phosphate solution, finally cleaned with clear water；
(vii) spray：Using Ultrasonic Arc Sprayed bolt surface spraying pure aluminum coating, pure aluminum coating coating thickness for 50 ± 15μm；
(viii) screw head side wrap high flame resistance cross-linking radiation polyolefine material protective layer, be made corrosion-resistant bolt；
The mass percent of each component is in the cross-linking radiation polyolefine material protective layer of high flame resistance：Aluminium oxide 6%, oxidation Magnesium 5%, polymeric plasticizer 16%, antioxidant 1%, sensitizer 7%, sensitizer 0.5%, fire retardant 2%, colouring agent 6%, it is remaining Measure as crosslinkable polyolefin base-material.
Embodiment two
The production technology of the corrosion-resistant bolt of the present embodiment, comprises the following steps：
(i) dispensing：The mass percent of each component is in corrosion-resistant bolt：C：0.08%, Al:1.87%,Zn:1.34%,Mn： 0.74%, Cr：0.07%, Ni：0.24%, Mo：0.13%, Ti：1.27%, Pd：0.48%,Pt：0.12%,Nd：0.12%,Ce： 0.14%,Eu：0.14%,Lu:0.02%, Sn：0.57%, Zr：0.04%, Re：0.13%, surplus Fe；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：Cylindrical blank is subjected to cold-heading molding using cold-heading equipment, is molded the screw head and spiral shell to form bolt Bar；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment；
(v) bolt is heat-treated；
(vi) pickling：Bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and soaks 13min, after cleaned with clear water, then be placed in Concentration is to soak 8min in 2% phosphate solution, is finally cleaned with clear water；
(vii) spray：Using Ultrasonic Arc Sprayed bolt surface spraying pure aluminum coating, pure aluminum coating coating thickness for 50 ± 15μm；
(viii) screw head side wrap high flame resistance cross-linking radiation polyolefine material protective layer, be made corrosion-resistant bolt；
The mass percent of each component is in the cross-linking radiation polyolefine material protective layer of high flame resistance：Aluminium oxide 6%, oxidation Magnesium 5%, polymeric plasticizer 16%, antioxidant 1%, sensitizer 7%, sensitizer 0.5%, fire retardant 2%, colouring agent 6%, it is remaining Measure as crosslinkable polyolefin base-material.
The present invention is not limited to above-described embodiment.All technical solutions formed using equivalent substitution, all falling within the present invention will The protection domain asked.

Claims (4)

  1. A kind of 1. production technology of corrosion-resistant bolt, it is characterised in that：Comprise the following steps：
    (i) dispensing：The mass percent of each component is in the corrosion-resistant bolt：C：0.05-0.08%, Al:1.55-1.87%, Zn:1.12-1.34%,Mn：0.55-0.74%, Cr：0.03-0.07%, Ni：0.12-0.24%, Mo：0.06-0.13%, Ti： 1.16-1.27%, Pd：0.33-0.48%,Pt：0.05-0.12%,Nd：0.04-0.12%,Ce：0.11-0.14%,Eu：0.03- 0.14%,Lu:0.01-0.02%, Sn：0.35-0.57%, Zr：0.02-0.04%, Re：0.05-0.13%, surplus Fe；
    (ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor Metal wire rod is blocked in movement, and cylindrical blank is made；
    (iii) cold-heading：The cylindrical blank is subjected to cold-heading molding using cold-heading equipment, is molded the screw head to form bolt And screw rod；
    (iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment；
    (v) bolt is heat-treated；
    (vi) pickling：Bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and soaks 10-15min, after cleaned with clear water, then put It is to soak 5-8min in 1-2% phosphate solutions in concentration, is finally cleaned with clear water；
    (vii) spray：Using Ultrasonic Arc Sprayed bolt surface spraying pure aluminum coating, pure aluminum coating coating thickness for 50 ± 15μm；
    (viii) screw head side wrap high flame resistance cross-linking radiation polyolefine material protective layer, be made corrosion-resistant bolt；
    The mass percent of each component is in the cross-linking radiation polyolefine material protective layer of the high flame resistance：Aluminium oxide 5- 8%th, magnesia 4-6%, polymeric plasticizer 15-19%, antioxidant 1-2%, sensitizer 6-8%, sensitizer 0.1-1%, resistance Agent 1-4%, colouring agent 5-9% are fired, surplus is crosslinkable polyolefin base-material.
  2. 2. the production technology of corrosion-resistant bolt according to claim 1, it is characterised in that：Step (i) described in corrosion-resistant spiral shell The mass percent of each component is in bolt：C：0.05%, Al:1.55%,Zn:1.12%,Mn：0.55%, Cr：0.03%, Ni： 0.12%, Mo：0.06%, Ti：1.16%, Pd：0.33%,Pt：0.05%,Nd：0.04%,Ce：0.11%,Eu：0.03%,Lu: 0.01%, Sn：0.35%, Zr：0.02%, Re：0.05%, surplus Fe.
  3. 3. the production technology of corrosion-resistant bolt according to claim 1, it is characterised in that：Step (i) described in corrosion-resistant spiral shell The mass percent of each component is in bolt：C：0.08%, Al:1.87%,Zn:1.34%,Mn：0.74%, Cr：0.07%, Ni： 0.24%, Mo：0.13%, Ti：1.27%, Pd：0.48%,Pt：0.12%,Nd：0.12%,Ce：0.14%,Eu：0.14%,Lu: 0.02%, Sn：0.57%, Zr：0.04%, Re：0.13%, surplus Fe.
  4. 4. the production technology of corrosion-resistant bolt according to claim 1, it is characterised in that：Step (viii) described in high flame retardant The mass percent of each component is in the cross-linking radiation polyolefine material protective layer of energy：Aluminium oxide 6%, magnesia 5%, macromolecule Plasticizer 16%, antioxidant 1%, sensitizer 7%, sensitizer 0.5%, fire retardant 2%, colouring agent 6%, surplus are cross-linking poly- Alkene base-material.
CN201711359549.XA 2017-12-17 2017-12-17 A kind of production technology of corrosion-resistant bolt Pending CN107937830A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109973488A (en) * 2019-03-19 2019-07-05 鼎镁（昆山）新材料科技有限公司 A kind of high-strength aluminum alloy Self Drilling Screws and preparation method thereof
CN110625337A (en) * 2019-09-20 2019-12-31 江苏永昊高强度螺栓有限公司 Bolt machining process
CN110819930A (en) * 2019-11-25 2020-02-21 南通市腾飞金属铸造有限公司 Fire grate surface coating treatment process
CN111853026A (en) * 2020-08-22 2020-10-30 湖南海斯特材料科技有限公司 Wear-resisting bolt of high life
CN113174538A (en) * 2021-04-15 2021-07-27 靖江市新万国标准件制造有限公司 Alloy material for high-temperature-resistant bolt and bolt processing method

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CN103077783A (en) * 2013-01-28 2013-05-01 常州市新东方电缆有限公司 Production process of cable for high-speed train
CN106931018A (en) * 2017-04-07 2017-07-07 江苏固德建筑机械有限公司 A kind of countersunk head cross Self Drilling Screws and its processing technology
CN107023555A (en) * 2017-04-07 2017-08-08 江苏固德建筑机械有限公司 A kind of hexagonal washer Self Drilling Screws and its production technology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103077783A (en) * 2013-01-28 2013-05-01 常州市新东方电缆有限公司 Production process of cable for high-speed train
CN106931018A (en) * 2017-04-07 2017-07-07 江苏固德建筑机械有限公司 A kind of countersunk head cross Self Drilling Screws and its processing technology
CN107023555A (en) * 2017-04-07 2017-08-08 江苏固德建筑机械有限公司 A kind of hexagonal washer Self Drilling Screws and its production technology

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109973488A (en) * 2019-03-19 2019-07-05 鼎镁（昆山）新材料科技有限公司 A kind of high-strength aluminum alloy Self Drilling Screws and preparation method thereof
CN110625337A (en) * 2019-09-20 2019-12-31 江苏永昊高强度螺栓有限公司 Bolt machining process
CN110819930A (en) * 2019-11-25 2020-02-21 南通市腾飞金属铸造有限公司 Fire grate surface coating treatment process
CN111853026A (en) * 2020-08-22 2020-10-30 湖南海斯特材料科技有限公司 Wear-resisting bolt of high life
CN113174538A (en) * 2021-04-15 2021-07-27 靖江市新万国标准件制造有限公司 Alloy material for high-temperature-resistant bolt and bolt processing method

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