CN104108010A - Processing technology of ring gauge - Google Patents
Processing technology of ring gauge Download PDFInfo
- Publication number
- CN104108010A CN104108010A CN201410354443.0A CN201410354443A CN104108010A CN 104108010 A CN104108010 A CN 104108010A CN 201410354443 A CN201410354443 A CN 201410354443A CN 104108010 A CN104108010 A CN 104108010A
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- China
- Prior art keywords
- blank
- ring gauge
- processing technology
- phosphating
- temperature
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/34—Ring or other apertured gauges, e.g. "go/no-go" gauge
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a processing technology of a ring gauge. The processing technology comprises blank feeding, inner circle and ex-circle processing, heat treatment, end plane processing and inner circle and ex-circle finishing which are performed sequentially. A blank is made from 45# steel or 40Gr (Chromium); the heat treatment comprises high-temperature quenching and low-temperature annealing which are performed sequentially, the cooling process of the high-temperature quenching comprises two processes, including shock chilling and slowly cooling, and the slowly cooling refers to air cooling or oil cooling the blank obtained by shock chilling; the annealing temperature of the low-temperature annealing is any numerical value between 165 and 185 DEG C, and the low-temperature annealing time is not less than 1.5h; a forging step is further included between the blank feeding and the inner circle and ex-circle processing procedure. According to the technology provided by the invention, the ring gauge with longer service life and better quality can be obtained, thereby being beneficial for the detection cost of a piston ring, the detection accuracy and reliability of the piston ring.
Description
Technical field
The present invention relates to the manufacturing process for the measurer of size detection, particularly relate to a kind of processing technology of ring gauge.
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 processing technology of ring gauge.
For the problems referred to above, the processing technology of a kind of ring gauge provided by the invention reaches goal of the invention by following technical essential: a kind of processing technology of ring gauge, 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 45# steel or 40Gr, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 825 ℃ to 835 ℃, the cooling procedure of quench hot comprises quenching and two processes of Slow cooling, described quench step is for adopting saline solution that blank is cooled to any number in 190 ℃ to 200 ℃, blank employing air cooling or the oil cooling of described Slow cooling for quenching is obtained, the temperature of described lonneal is any number in 165 ℃ to 185 ℃, the lonneal time is not less than 1.5h, 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:(8-9) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, phosphating time is 13 to 17min.
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 7 to 13min.
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 on adopting the hardness basis of the finished product that 45# steel or 40Gr obtain as ring gauge material, prior art improve 5HRC even more, can be broken through 100,000 the service life of being manufactured the ring gauge forming by 45# steel or 40Gr, the twice in nearly available technology adopting 45# steel or 40Gr obtain as base material ring gauge product service life, 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, quenching and two processes of Slow cooling that the quench hot arranging adopts, quenching is conducive to the quenching degree of high temperature blank, when Slow cooling is conducive to prevent the metallographic of blank to be transformed to martensite by austenite, larger structural stress causes in blank and forms crackle, is conducive to the product quality of ring gauge.
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:
A kind of processing technology of ring gauge, 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 45# steel or 40Gr, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 825 ℃ to 835 ℃, the cooling procedure of quench hot comprises quenching and two processes of Slow cooling, described quench step is for adopting saline solution that blank is cooled to any number in 190 ℃ to 200 ℃, blank employing air cooling or the oil cooling of described Slow cooling for quenching is obtained, the temperature of described lonneal is any number in 165 ℃ to 185 ℃, the lonneal time is not less than 1.5h, between described blank blanking and inner circle and Excircle machining operation, also comprise and forge step.
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, the defect such as slag inclusion, pore even, be convenient to make form in blank complete metal streamline simultaneously, by follow-up heat treatment, can on prior art adopts the hardness basis of the finished product that 45# steel or 40Gr obtain as ring gauge material, improve 5HRC even more, can be broken through 100,000 the service life of being manufactured the ring gauge forming by 45# steel or 40Gr.
Quenching and two processes of Slow cooling that the quench hot arranging adopts, quenching is conducive to the quenching degree of high temperature blank, when Slow cooling is conducive to prevent the metallographic of blank to be transformed to martensite by austenite, larger structural stress causes and in blank, forms crackle, the product quality that is conducive to ring gauge, in the present embodiment, saline solution adopts 10% saline solution.
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:(8-9) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, phosphating time is 13 to 17min.
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 7 to 13min.
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. the processing technology of a ring gauge, 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 45# steel or 40Gr, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 825 ℃ to 835 ℃, the cooling procedure of quench hot comprises quenching and two processes of Slow cooling, described quench step is for adopting saline solution that blank is cooled to any number in 190 ℃ to 200 ℃, blank employing air cooling or the oil cooling of described Slow cooling for quenching is obtained, the temperature of described lonneal is any number in 165 ℃ to 185 ℃, the lonneal time is not less than 1.5h, between described blank blanking and inner circle and Excircle machining operation, also comprise and forge step.
2. the processing technology of a kind of ring gauge according to claim 1, is characterized in that, described inside and outside circle fine grinding step subsequent also comprises phosphatization treatment step.
3. the processing technology of a kind of ring gauge 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:(8-9) Phosphating Solution, the temperature of described Phosphating Solution is at 60 ℃ within the scope of 70 ℃, and phosphating time is 13 to 17min.
4. the processing technology of a kind of ring gauge 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 7 to 13min.
5. according to the processing technology of a kind of ring gauge described in any one in claim 3 or 4, it is characterized in that Phosphating Accelerant also in described Phosphating Solution.
6. the processing technology of a kind of ring gauge according to claim 5, is characterized in that, described Phosphating Accelerant is azanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354443.0A CN104108010A (en) | 2014-07-24 | 2014-07-24 | Processing technology of ring gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354443.0A CN104108010A (en) | 2014-07-24 | 2014-07-24 | Processing technology of ring gauge |
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| Publication Number | Publication Date |
|---|---|
| CN104108010A true CN104108010A (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410354443.0A Pending CN104108010A (en) | 2014-07-24 | 2014-07-24 | Processing technology of ring gauge |
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| CN (1) | CN104108010A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400356A (en) * | 2014-11-24 | 2015-03-11 | 苏州市福迈精密机械有限公司 | Machining process for steel gasket |
| CN105563045A (en) * | 2016-02-26 | 2016-05-11 | 苏州国量量具科技有限公司 | Machining process of ring gauge |
| CN106440987A (en) * | 2016-11-25 | 2017-02-22 | 东莞市镒凯模具科技有限公司 | Precision stainless steel needle gauge and processing technology |
| CN107282839A (en) * | 2017-08-01 | 2017-10-24 | 台州市宇鹏机械锻造有限公司 | A kind of forging technology of forging |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188532A (en) * | 1982-04-28 | 1983-11-04 | Nhk Spring Co Ltd | Manufacture of hollow stabilizer |
| 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 |
| CN102814623A (en) * | 2012-07-11 | 2012-12-12 | 贵州红林机械有限公司 | Shape supporting technology for opening of inclined-port elastic gasket |
| CN103056612A (en) * | 2012-12-21 | 2013-04-24 | 兰州飞行控制有限责任公司 | Processing method of magnetic powder clutch cup-shaped rotor |
| 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 CN201410354443.0A patent/CN104108010A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188532A (en) * | 1982-04-28 | 1983-11-04 | Nhk Spring Co Ltd | Manufacture of hollow stabilizer |
| 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 |
| CN102814623A (en) * | 2012-07-11 | 2012-12-12 | 贵州红林机械有限公司 | Shape supporting technology for opening of inclined-port elastic gasket |
| CN103056612A (en) * | 2012-12-21 | 2013-04-24 | 兰州飞行控制有限责任公司 | Processing method of magnetic powder clutch cup-shaped rotor |
| 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》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400356A (en) * | 2014-11-24 | 2015-03-11 | 苏州市福迈精密机械有限公司 | Machining process for steel gasket |
| CN105563045A (en) * | 2016-02-26 | 2016-05-11 | 苏州国量量具科技有限公司 | Machining process of ring gauge |
| CN106440987A (en) * | 2016-11-25 | 2017-02-22 | 东莞市镒凯模具科技有限公司 | Precision stainless steel needle gauge and processing technology |
| CN107282839A (en) * | 2017-08-01 | 2017-10-24 | 台州市宇鹏机械锻造有限公司 | A kind of forging technology of forging |
| CN107282839B (en) * | 2017-08-01 | 2019-08-02 | 台州市宇鹏机械锻造股份有限公司 | A kind of forging technology of forging |
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Application publication date: 20141022 |