CN104439964A - Piston rod machining process - Google Patents

Piston rod machining process Download PDF

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Publication number
CN104439964A
CN104439964A CN201410666436.4A CN201410666436A CN104439964A CN 104439964 A CN104439964 A CN 104439964A CN 201410666436 A CN201410666436 A CN 201410666436A CN 104439964 A CN104439964 A CN 104439964A
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CN
China
Prior art keywords
piston rod
heat treatment
processing technology
machining process
tempering
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410666436.4A
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Chinese (zh)
Inventor
黄建芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUZHONG DISTRICT GUANGFU JINYI HARDWARE FITTINGS FACTORY
Original Assignee
WUZHONG DISTRICT GUANGFU JINYI HARDWARE FITTINGS FACTORY
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 WUZHONG DISTRICT GUANGFU JINYI HARDWARE FITTINGS FACTORY filed Critical WUZHONG DISTRICT GUANGFU JINYI HARDWARE FITTINGS FACTORY
Priority to CN201410666436.4A priority Critical patent/CN104439964A/en
Publication of CN104439964A publication Critical patent/CN104439964A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J7/00—Piston-rods

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

The invention discloses a piston rod machining process. The piston rod machining process comprises the working procedures of blank forging, annealing, rough turning, heat treatment quenching and tempering, semi-finish turning, ultrasonic flaw detection, central oil hole boring, key groove milling, pin hole drilling, stable tempering heat treatment, ceramic coating spraying, external grinding, nitriding heat treatment and Sic grinding wheel precision grinding. According to the piston rod machining process, physical characteristics of the surface of a piston rod are changed, and the piston is good in pressure loss resistance and corrosion resistance due to the ceramic coating spraying process added to the piston rod; through the follow-up nitriding heat treatment process, the surface hardness, fatigue resistance and abrasive resistance of the piston rod are improved, and therefore product quality is greatly improved, and production cost is lowered.

Description

A kind of piston rod processing technology
Technical field
The present invention relates to a kind of processing technology, particularly a kind of piston rod processing technology.
Background technology
The piston rod that current most of hydraulic jack uses general all milling or clamp shaping after, carry out grinding, Direct Electroplating after grinding, carry out abrasive band polishing after plating, then directly use; Because abrasive band particle is larger, plating bits between coating surface micro-line can not be removed, thus its surface shows coating surface under the microscope wedge angle, uneven, piston rod long-term reciprocating motion under hyperbaric environment can cause cut to seal, seal is fragile, piston rod surface also draws trace, the life cycle of oil cylinder entirety, the lost of life simultaneously.
Summary of the invention
For the technical problem of above-mentioned existence, the object of the invention is: propose a kind of piston rod processing technology, this processing technology can improve hardness and the surface roughness of piston rod surface, and enhance the wearability of the body of rod, corrosion resistance and fatigue resistance, thus substantially increase the quality of product, reduce production cost.
Technical solution of the present invention is achieved in that a kind of piston rod processing technology, and described processing technology comprises following operation: rough forging-annealing-rough turn-heat treatment quenching and tempering-half finish turning-ultrasonic examination-boring center oilhole-keyseat-draw-bore-stable tempering heat treatment-spraying ceramic coat-cylindrical grinding-nitrogenize heat treatment-Sic emery wheel fine grinding.
Preferably, described nitriding temperature controls as 500-520 DEG C, insulation 18-20h.
Preferably, described stable tempering heat treatment temperature controls at 480-500 DEG C, and temperature retention time is at more than 4h.
Preferably, the coating layer thickness of described spraying ceramic coat is 300 μm.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Piston rod processing technology of the present invention, changes the physical characteristic of piston rod surface, by increase to the spraying ceramic coat technique of piston rod make the resistance to crushing of piston rod and corrosion resistance good; Again through follow-up nitrogenize Technology for Heating Processing, improve the case hardness of piston rod and fatigue resistance and wearability, thus substantially increase the quality of product, reduce production cost.
Detailed description of the invention
A kind of piston rod processing technology of the present invention, described processing technology comprises following operation: rough forging-annealing-rough turn-heat treatment quenching and tempering-half finish turning-ultrasonic examination-boring center oilhole-keyseat-draw-bore-stable tempering heat treatment-spraying ceramic coat-cylindrical grinding-nitrogenize heat treatment-Sic emery wheel fine grinding; It is 520 DEG C that described nitriding temperature controls, insulation 18h; Described stable tempering heat treatment temperature controls at 500 DEG C, and temperature retention time is at more than 4h; The coating layer thickness of described spraying ceramic coat is 300 μm; Its principle of spraying ceramic coat sends in plasma spray gun by gas, more than 1000 DEG C High temperature ion gases are ionized into by high-frequency ignition, again through anode nozzle ejection at a high speed, powder carrier gas passage is sent in flame and is melted and accelerate to spray on the surface of the body of rod, change the physical characteristic of piston rod surface, make the resistance to crushing of piston rod and corrosion resistance good; Again through follow-up nitrogenize Technology for Heating Processing, improve the case hardness of piston rod and fatigue resistance and wearability, thus substantially increase the quality of product, reduce production cost.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims (4)

1. a piston rod processing technology, is characterized in that: described processing technology comprises following operation: rough forging-annealing-rough turn-heat treatment quenching and tempering-half finish turning-ultrasonic examination-boring center oilhole-keyseat-draw-bore-stable tempering heat treatment-spraying ceramic coat-cylindrical grinding-nitrogenize heat treatment-Sic emery wheel fine grinding.
2. a kind of piston rod processing technology according to claim 1, is characterized in that: described nitriding temperature controls as 500-520 DEG C, insulation 18-20h.
3. a kind of piston rod processing technology according to claim 1, is characterized in that:
Described stable tempering heat treatment temperature controls at 480-500 DEG C, and temperature retention time is at more than 4h.
4. a kind of piston rod processing technology according to claim 1, is characterized in that: the coating layer thickness of described spraying ceramic coat is 300 μm.
CN201410666436.4A 2014-11-20 2014-11-20 Piston rod machining process Pending CN104439964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410666436.4A CN104439964A (en) 2014-11-20 2014-11-20 Piston rod machining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410666436.4A CN104439964A (en) 2014-11-20 2014-11-20 Piston rod machining process

Publications (1)

Publication Number Publication Date
CN104439964A true CN104439964A (en) 2015-03-25

Family

ID=52887130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410666436.4A Pending CN104439964A (en) 2014-11-20 2014-11-20 Piston rod machining process

Country Status (1)

Country Link
CN (1) CN104439964A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959500A (en) * 2015-06-23 2015-10-07 柳州科尔特锻造机械有限公司 Piston rod forging production method
CN105666049A (en) * 2015-11-10 2016-06-15 苏州敏喆机械有限公司 Manufacturing process of connector for chinlon spinning engineering
CN106112418A (en) * 2016-08-30 2016-11-16 沈阳三科水力机械制造有限公司 The processing technique of PH stainless steel pump shaft
CN106736326A (en) * 2016-12-13 2017-05-31 柳州通为机械有限公司 Automobile die method for surface hardening
CN107498272A (en) * 2017-10-18 2017-12-22 博尔德南通汽车零部件有限公司 Piston rod processing technology
CN107570975A (en) * 2017-10-18 2018-01-12 博尔德南通汽车零部件有限公司 A kind of piston rod processing technology
CN108515312A (en) * 2018-03-06 2018-09-11 哈尔滨汽轮机厂有限责任公司 A kind of processing method of regulating valve valve disc
CN109955034A (en) * 2017-12-25 2019-07-02 丹阳市延陵镇度越五金厂 A kind of production technology being mechanically connected bar
CN110303302A (en) * 2019-07-13 2019-10-08 海宁超艺精密五金有限公司 A kind of production and processing technology of industrial nonstandard handware
CN112658625A (en) * 2020-12-29 2021-04-16 苏州浩耀辰智能科技有限公司 Manufacturing process of oil cylinder piston rod

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160605A (en) * 1982-02-23 1983-09-24 フエスト−マシ−ネン・フアブリ−ク・ゴツトリ−プ・シユト−ル Pneumatic or hydraulic type working cylinder with piston rod and its manufacture
KR20000061120A (en) * 1999-03-23 2000-10-16 구본호 manufacturing method for hydraulic cylinder of sea water and method detecting of absolute position
CN1403710A (en) * 2002-10-17 2003-03-19 任希文 Hardening ceramic processing method for surface of piston rod
CN2859104Y (en) * 2005-05-12 2007-01-17 钱兵 Hot spraying ceramic coating cylinder rod
CN1986886A (en) * 2005-12-20 2007-06-27 任希文 High speed fuel gas spraying process for treating piston rod surface
CN101580926A (en) * 2009-07-06 2009-11-18 青岛张氏机械有限公司 Salt-bath heat treatment technology of piston rod
CN101994116A (en) * 2010-12-10 2011-03-30 云南昆钢联合激光技术有限公司 Compounding process of surface strengthening layer of piston rod
CN102719784A (en) * 2012-07-03 2012-10-10 株洲联诚集团有限责任公司 Preparation method for improving abrasion resistance of piston rod of oil damper of motor vehicle
CN103174624A (en) * 2013-03-11 2013-06-26 戴亚洲 Nano-metal ceramic coating piston rod and manufacturing method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160605A (en) * 1982-02-23 1983-09-24 フエスト−マシ−ネン・フアブリ−ク・ゴツトリ−プ・シユト−ル Pneumatic or hydraulic type working cylinder with piston rod and its manufacture
KR20000061120A (en) * 1999-03-23 2000-10-16 구본호 manufacturing method for hydraulic cylinder of sea water and method detecting of absolute position
CN1403710A (en) * 2002-10-17 2003-03-19 任希文 Hardening ceramic processing method for surface of piston rod
CN2859104Y (en) * 2005-05-12 2007-01-17 钱兵 Hot spraying ceramic coating cylinder rod
CN1986886A (en) * 2005-12-20 2007-06-27 任希文 High speed fuel gas spraying process for treating piston rod surface
CN101580926A (en) * 2009-07-06 2009-11-18 青岛张氏机械有限公司 Salt-bath heat treatment technology of piston rod
CN101994116A (en) * 2010-12-10 2011-03-30 云南昆钢联合激光技术有限公司 Compounding process of surface strengthening layer of piston rod
CN102719784A (en) * 2012-07-03 2012-10-10 株洲联诚集团有限责任公司 Preparation method for improving abrasion resistance of piston rod of oil damper of motor vehicle
CN103174624A (en) * 2013-03-11 2013-06-26 戴亚洲 Nano-metal ceramic coating piston rod and manufacturing method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959500A (en) * 2015-06-23 2015-10-07 柳州科尔特锻造机械有限公司 Piston rod forging production method
CN105666049A (en) * 2015-11-10 2016-06-15 苏州敏喆机械有限公司 Manufacturing process of connector for chinlon spinning engineering
CN105666049B (en) * 2015-11-10 2019-07-02 苏州敏喆机械有限公司 A kind of manufacturing process of extrusion spinning engineering connector
CN106112418A (en) * 2016-08-30 2016-11-16 沈阳三科水力机械制造有限公司 The processing technique of PH stainless steel pump shaft
CN106112418B (en) * 2016-08-30 2019-03-29 沈阳三科核电设备制造股份有限公司 The processing technology of PH stainless steel pump shaft
CN106736326A (en) * 2016-12-13 2017-05-31 柳州通为机械有限公司 Automobile die method for surface hardening
CN107498272A (en) * 2017-10-18 2017-12-22 博尔德南通汽车零部件有限公司 Piston rod processing technology
CN107570975A (en) * 2017-10-18 2018-01-12 博尔德南通汽车零部件有限公司 A kind of piston rod processing technology
CN109955034A (en) * 2017-12-25 2019-07-02 丹阳市延陵镇度越五金厂 A kind of production technology being mechanically connected bar
CN108515312A (en) * 2018-03-06 2018-09-11 哈尔滨汽轮机厂有限责任公司 A kind of processing method of regulating valve valve disc
CN110303302A (en) * 2019-07-13 2019-10-08 海宁超艺精密五金有限公司 A kind of production and processing technology of industrial nonstandard handware
CN112658625A (en) * 2020-12-29 2021-04-16 苏州浩耀辰智能科技有限公司 Manufacturing process of oil cylinder piston rod

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SE01 Entry into force of request for substantive examination
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Application publication date: 20150325