CN104128758A - Ring gauge manufacturing method with GCR15 as base materials for facilitating machining - Google Patents
Ring gauge manufacturing method with GCR15 as base materials for facilitating machining Download PDFInfo
- Publication number
- CN104128758A CN104128758A CN201410355031.9A CN201410355031A CN104128758A CN 104128758 A CN104128758 A CN 104128758A CN 201410355031 A CN201410355031 A CN 201410355031A CN 104128758 A CN104128758 A CN 104128758A
- Authority
- CN
- China
- Prior art keywords
- gcr15
- machining
- ring gauge
- temperature
- phosphating
- 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
Links
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
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
Abstract
The invention discloses a ring gauge manufacturing method with GCR15 as base materials for facilitating machining. The ring gauge manufacturing method comprises the sequential steps of workblank blanking, inner and outer circle machining, heat treatment, end face machining and accurate inner and outer circle grinding, wherein a workblank is made of GCr15, and the step of spheroidizing annealing is involved between the step of workblank blanking and the step of inner and outer circle machining. According to the step of spheroidizing annealing, the workblank is heated to be at the temperature ranging from 785 DEG C to 800 DEG C, the temperature is kept for not less than 3 h, and a furnace is cooled to be at the temperature ranging from 600 DEG C to 700 DEG C. According to the step of heat treatment, high-temperature quenching and low-temperature tempering are carried out in sequence, the duration time of the high-temperature quenching is not less than 2 h, the tempering temperature of the low-temperature tempering can be any numerical value between 165 DEG C to 175 DEG C, the duration time of the low-temperature tempering is not less than 3 h, and the step of forging is further involved between the step of workblank blanking and the step of inner and outer circle machining. According to the ring gauge manufacturing method, a ring gauge with the longer service life can be conveniently obtained, the detection cost of piston ring is reduced, and detection precision and reliability of the piston ring are improved.
Description
Technical field
The present invention relates to the manufacturing process for the measurer of size detection, particularly relate to a kind of ring gauge manufacture method that GCr15 is base material of take of being convenient to machining.
Background technology
Piston ring is as one of vital part in engine, and the quality of performance and quality directly affects the every technical-economic index of engine, and wherein the end-gaps of piston ring is one of important technological parameters affecting engine sealing property.Because the engine of the dissimilar and structure air leakage by piston ring end gap clearance is about 0.3% to 1.8% of air inflow, in order to reduce air leakage, just must reduce the end-gaps of piston ring, in existing standard, general provision end-gaps greatest limit tolerance is 0.3mm as far as possible.Along with improving constantly of engine performance, as at the continuous ripe supercharger h type engine h of technology in recent years, requirement to piston ring is more and more higher, if the end-gaps tolerance of some high-power Piston Ring for Auto Diesel Engine is only 0.1mm, this just makes piston ring in production and use procedure, and the quality of piston ring and size Control are seemed to particularly important.Critical piece for piston ring size detection in prior art is ring gauge, from piston ring copying, start to the whole process of product inspection, the kind of the operation that ring gauge uses and the specification of required ring gauge, do not have his measurer can be by comparison, good ring gauge quality be the solid foundation that piston ring end gap clearance deviation guarantees.
Summary of the invention
For above-mentioned, for guaranteeing piston ring end gap clearance deviation, the problem that good ring gauge quality is its solid foundation, the invention provides a kind of ring gauge manufacture method that GCr15 is base material of take of being convenient to machining.
For the problems referred to above, the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining provided by the invention reaches goal of the invention by following technical essential: the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining, comprise blank blanking in sequence, inner circle and Excircle machining, heat treatment, end face processing and inside and outside circle fine grinding, the material of described blank is GCr15, between blank blanking and inner circle and Excircle machining operation, also comprise spheroidizing step, described spheroidizing is not less than 3h for blank is heated to 785 ℃ of-800 ℃ of insulations, stove is chilled to 600 ℃ to 700 ℃, described heat treatment comprises quench hot and lonneal in sequence, described quench hot is for to be heated to any number in 845 ℃ to 865 ℃ by the cold blank obtaining of above-mentioned stove, the quench hot time is not less than 2h, the temperature of described lonneal is any number in 165 ℃ to 175 ℃, the lonneal time is not less than 3h, between described blank blanking and inner circle and Excircle machining operation, also comprise and forge step.
Further technical scheme is:
Described inside and outside circle fine grinding step subsequent also comprises phosphatization treatment step.
The ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(9-10) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, phosphating time is 13 to 20min.
The ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(10-12) Phosphating Solution, the temperature of described Phosphating Solution is at 50 ℃ within the scope of 60 ℃, phosphating time is 8 to 15min.
In described Phosphating Solution, go back Phosphating Accelerant.
Described Phosphating Accelerant is azanol.
The present invention has following beneficial effect:
1, ring gauge manufacturing approach craft provided by the invention is simple, by choosing specific quench hot, low tempering temperatures and time, and arranged and forge step before heat treatment, first loose by the as cast condition forging in step elimination blank, slag inclusion even, the defects such as pore, be convenient to make form in blank complete metal streamline simultaneously, by follow-up heat treatment, can make the case hardness of product higher than 65HRC, be at least 4 times of ring gauge life-span that existing employing 45# steel or 40Gr obtain as base material the service life that makes to manufacture by GCr15 the ring gauge form, and material and manufacturing cost are only 2.5 times of prior art, more than be arranged so that the present invention is not only beneficial to the testing cost of piston ring, also help accuracy of detection and the reliability of piston ring.
2, by the spheroidizing step arranging, can make the distribution of carbides in blank even, the metallographic structure of blank is granular pearlite, and hardness range is within the scope of 170-220HRB, be convenient to follow-up machine cut processing, also help the surperficial mechanical processing quality of blank simultaneously.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
Be convenient to the ring gauge manufacture method that GCr15 is base material of take of machining, comprise blank blanking in sequence, inner circle and Excircle machining, heat treatment, end face processing and inside and outside circle fine grinding, the material of described blank is GCr15, between blank blanking and inner circle and Excircle machining operation, also comprise spheroidizing step, described spheroidizing is not less than 3h for blank is heated to 785 ℃ of-800 ℃ of insulations, stove is chilled to 600 ℃ to 700 ℃, described heat treatment comprises quench hot and lonneal in sequence, described quench hot is for to be heated to any number in 845 ℃ to 865 ℃ by the cold blank obtaining of above-mentioned stove, the quench hot time is not less than 2h, the temperature of described lonneal is any number in 165 ℃ to 175 ℃, the lonneal time is not less than 3h, between described blank blanking and inner circle and Excircle machining operation, also comprise and forge step.
Ring gauge manufacturing approach craft provided by the invention is simple, by choosing specific quench hot, low tempering temperatures and time, and arranged and forge step before heat treatment, first loose by the as cast condition forging in step elimination blank, slag inclusion even, the defects such as pore, be convenient to make form in blank complete metal streamline simultaneously, by follow-up heat treatment, can make the case hardness of product higher than 65HRC, be at least 4 times of ring gauge life-span that existing employing 45# steel or 40Gr obtain as base material the service life that makes to manufacture by GCr15 the ring gauge form, and material and manufacturing cost are only 2.5 times of prior art, more than be arranged so that the present invention is not only beneficial to the testing cost of piston ring, also help accuracy of detection and the reliability of piston ring.
By the spheroidizing step arranging, can make the distribution of carbides in blank even, the metallographic structure of blank is granular pearlite, and hardness range is within the scope of 170-220HRB, be convenient to follow-up machine cut processing, also help the surperficial mechanical processing quality of blank simultaneously.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, for making to form anti-attrition layer and the anticorrosive coat with self-lubricating property in the outside of ring gauge, further to guarantee the service life of the ring gauge that the present invention obtains, described inside and outside circle fine grinding step subsequent also comprises phosphatization treatment step.
The ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(9-10) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, phosphating time is 13 to 20min.
The ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(10-12) Phosphating Solution, the temperature of described Phosphating Solution is at 50 ℃ within the scope of 60 ℃, phosphating time is 8 to 15min.
For strengthening the effect of phosphatization step, be convenient to obtain darker phosphate coating, in described Phosphating Solution, go back Phosphating Accelerant.
For simplifying the technology controlling and process of phosphatization step and avoiding promoter to environment, described Phosphating Accelerant is azanol.
Above content is the further description of the present invention being done in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments that draw under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (6)
1. be convenient to the ring gauge manufacture method that GCr15 is base material of take of machining, comprise blank blanking in sequence, inner circle and Excircle machining, heat treatment, end face processing and inside and outside circle fine grinding, it is characterized in that, the material of described blank is GCr15, between blank blanking and inner circle and Excircle machining operation, also comprise spheroidizing step, described spheroidizing is not less than 3h for blank is heated to 785 ℃ of-800 ℃ of insulations, stove is chilled to 600 ℃ to 700 ℃, described heat treatment comprises quench hot and lonneal in sequence, described quench hot is for to be heated to any number in 845 ℃ to 865 ℃ by the cold blank obtaining of above-mentioned stove, the quench hot time is not less than 2h, the temperature of described lonneal is any number in 165 ℃ to 175 ℃, the lonneal time is not less than 3h, between described blank blanking and inner circle and Excircle machining operation, also comprise and forge step.
2. the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining according to claim 1, is characterized in that, described inside and outside circle fine grinding step subsequent also comprises phosphatization treatment step.
3. the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining according to claim 2, it is characterized in that, the ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(9-10) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, and phosphating time is 13 to 20min.
4. the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining according to claim 2, it is characterized in that, the ratio that the product that described phosphatization treatment step obtains in step for inside and outside circle is polished is placed in solution free acidity and total acidity is 1:(10-12) Phosphating Solution, the temperature of described Phosphating Solution is at 50 ℃ within the scope of 60 ℃, and phosphating time is 8 to 15min.
5. according to the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining described in any one in claim 3 or 4, it is characterized in that Phosphating Accelerant also in described Phosphating Solution.
6. the ring gauge manufacture method that GCr15 is base material of take of being convenient to machining according to claim 5, is characterized in that, described Phosphating Accelerant is azanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355031.9A CN104128758A (en) | 2014-07-24 | 2014-07-24 | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355031.9A CN104128758A (en) | 2014-07-24 | 2014-07-24 | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104128758A true CN104128758A (en) | 2014-11-05 |
Family
ID=51801752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410355031.9A Pending CN104128758A (en) | 2014-07-24 | 2014-07-24 | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104128758A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077812A (en) * | 1975-03-25 | 1978-03-07 | Ntn Toyo Bearing Co. Ltd. | Method of working steel machine parts including machining during quench cooling |
| CN101597682A (en) * | 2009-07-09 | 2009-12-09 | 贵州大学 | Process for ultrafining heat-treatment on crystal grains of axle steel |
| CN102328187A (en) * | 2011-08-31 | 2012-01-25 | 慈溪市汇丽机电有限公司 | Machining method of inner ring gauge |
| CN102443744A (en) * | 2011-12-05 | 2012-05-09 | 无锡市东方抗磨工程有限公司 | Interrupted quenching heat treatment process for high-medium carbon alloy steel |
| CN102886916A (en) * | 2012-09-17 | 2013-01-23 | 北京奥科瑞丰新能源股份有限公司 | Pressure roller for biomass briquetting machine and machining method for pressure roller |
| CN103350204A (en) * | 2013-06-07 | 2013-10-16 | 马鞍山市恒毅机械制造有限公司 | Composite centrifugal casting method of sealing ring |
-
2014
- 2014-07-24 CN CN201410355031.9A patent/CN104128758A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077812A (en) * | 1975-03-25 | 1978-03-07 | Ntn Toyo Bearing Co. Ltd. | Method of working steel machine parts including machining during quench cooling |
| CN101597682A (en) * | 2009-07-09 | 2009-12-09 | 贵州大学 | Process for ultrafining heat-treatment on crystal grains of axle steel |
| CN102328187A (en) * | 2011-08-31 | 2012-01-25 | 慈溪市汇丽机电有限公司 | Machining method of inner ring gauge |
| CN102443744A (en) * | 2011-12-05 | 2012-05-09 | 无锡市东方抗磨工程有限公司 | Interrupted quenching heat treatment process for high-medium carbon alloy steel |
| CN102886916A (en) * | 2012-09-17 | 2013-01-23 | 北京奥科瑞丰新能源股份有限公司 | Pressure roller for biomass briquetting machine and machining method for pressure roller |
| CN103350204A (en) * | 2013-06-07 | 2013-10-16 | 马鞍山市恒毅机械制造有限公司 | Composite centrifugal casting method of sealing ring |
Non-Patent Citations (1)
| Title |
|---|
| 南晖: "特殊螺纹环规的设计与制造", 《高压电器》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104087742A (en) | Differential temperature heat treatment method for centrifugal compound high-chromium steel roller | |
| CN105855299B (en) | A kind of milling method of steel and the steel obtained using this method | |
| CN104108010A (en) | Processing technology of ring gauge | |
| CN104561504A (en) | Heat treatment method for one-piece casting hot-rolled strip supporting roller | |
| CN104498680A (en) | Application of vegetable oil to lowering workpiece deformation in quenching process | |
| CN105238912A (en) | Heating treatment technology for piston pin | |
| CN105886739A (en) | Processing technology for hinge shaft for low temperature environment | |
| CN109439861B (en) | Heat treatment method of martensite precipitation hardening stainless steel part | |
| CN104128755A (en) | GCr15 ring gauge machining technology facilitating machining | |
| CN104942537B (en) | The manufacture method of circular orbit | |
| CN101775571A (en) | Process for producing large-scale diesel engine cam workpiece with high hardness and abrasive resistance | |
| CN110457834A (en) | A method of characterization carburizing steel infiltration layer concentration of carbon | |
| CN104128756A (en) | Machining technology of ring gauges convenient to use | |
| CN103161825A (en) | Air-cooled local-hardened miniature guide rail and manufacturing method thereof | |
| CN104227340A (en) | GCr15 ring gauge processing process capable of being conveniently processed mechanically and conveniently used | |
| CN105983818A (en) | Technology for machining positioning rings | |
| CN104128758A (en) | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining | |
| CN104108011A (en) | Ring gauge production method | |
| CN104801563A (en) | Preparation method of medium carbon non-quenched and tempered steel for crankshafts | |
| CN106342098B (en) | 16Cr3NiWMoVNbE material deep layer cyaniding heat treatment method | |
| CN103572018A (en) | Quenching method of steel member | |
| CN104117828A (en) | Machining technology for GCr15 ring gauge | |
| CN104117825A (en) | Method for manufacturing ring gauge with GCr15 as base material | |
| CN104128761A (en) | GCr15 ring gauge manufacturing method beneficial to reducing weight of ring gauge | |
| CN105088116A (en) | Silver-coated copper wire annealing liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |
|
| RJ01 | Rejection of invention patent application after publication |