CN104212958A - Technology process of lateral gear steam-sealing vacuum heat treatment - Google Patents
Technology process of lateral gear steam-sealing vacuum heat treatment Download PDFInfo
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- CN104212958A CN104212958A CN201310240186.3A CN201310240186A CN104212958A CN 104212958 A CN104212958 A CN 104212958A CN 201310240186 A CN201310240186 A CN 201310240186A CN 104212958 A CN104212958 A CN 104212958A
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Abstract
The invention relates to a technology process of a lateral gear steam-sealing vacuum heat treatment. The technology process comprises the following steps: before the mechanical cutting on a steam sealed part, placing the steamed sealed part in a sealed heating furnace, heating to a temperature of 900 to 1000 DEG C, carrying out a vacuum treatment under a pressure of 10<-3> to 10<-4> Pa, cooling the furnace to a temperature of 650 to 720 DEG C within 2 to 3 hours, maintaining the temperature for 9 to 11 hours, then cooling to a temperature of 500 to 650 DEG C within 1 to 3 hours, maintaining the temperature for 10 to 14 hours, cooling the furnace in vacuum under a pressure of 10<-3> to 10<-4> Pa to a temperature of 45 to 55 DEG C, and finally taking out the part from the furnace. The provided technology process has the advantages of simple technology, low production cost, and good heat treatment effect, can prevent steam seal part from being deformed after mechanical processing, and satisfies the requirements on processing precision.
Description
Technical field the present invention relates to a kind of heat-treatment technology method, in particular for the side tooth packing vacuum heat treatment process method of the axial labyrinth seal of turning axle.
The labyrinth seal of background technology rotating shaft side tooth is the resistance producing while utilizing fluid to pass through chamber, labyrinth, and convection cell kinetic energy consumes gradually its flow is reduced thereupon, realizes sealing effectiveness.According to the thermomechanical effect of sealing principle, sealed chamber is larger, and sealing effectiveness is better.It is large that Dan Ru sealed chamber becomes, and will cause the reduction of packing solid strength, after mechanical workout packing part occur radially, axial deformation, the actual sealing effectiveness using of impact.
Summary of the invention the object of this invention is to provide a kind of side tooth packing vacuum heat treatment process method that can guarantee packing solid strength, prevent packing part machining deformation.
For achieving the above object, side tooth packing vacuum heat treatment process method of the present invention is before packing part machinery cutting, be placed in heated sealed stove and be heated to 900-1000 ℃, and to carry out pressure is 10
-3-10
-4pa vacuum-treat, was cooled to 650-720 ℃ through 2-3 hour, constant temperature 9-11 hour, then be cooled to 500-650 ℃ through 1-3 hour, and constant temperature 10-14 hour, then to be placed in pressure be 10
-3-10
-4in Pa vacuum, be cooled to 45-55 ℃, come out of the stove.
After adopting above-mentioned processing method, can eliminate the internal stress between metallic molecule, detecting stress curve is zero, after cutting without any radially, axial deformation.Adopt high vacuum heat treating method, piece surface non-oxidation layer, effectively guarantees smooth finish and the precision of piece surface simultaneously.
The present invention has that technique is simple, production cost is low, thermal effectiveness is good, prevents that packing part from deforming after mechanical workout, meets working accuracy needs.
Description of drawings 1 is side tooth packing vacuum heat treatment process method flow diagram of the present invention.
Embodiment side tooth of the present invention packing vacuum heat treatment process method is before the cutting of packing part machinery, is placed in heated sealed stove and is heated to 950 ℃, and carry out 10
-3pa vacuum-treat, was cooled to 700 ℃ through 2.5 hours, constant temperature 10 hours, then be cooled to 600 ℃ through 2 hours, and constant temperature 12 hours, then to be placed in pressure be 10
-4in Pa vacuum, be cooled to 50 ℃, come out of the stove.
Feature of the present invention is that technique is simple, production cost is low, thermal effectiveness is good, prevents that distortion from appearring in packing part after mechanical workout, meets working accuracy.
Claims (2)
1. a side tooth packing vacuum heat treatment process method, is characterized in that, this processing method comprises the following steps: before packing part machinery cutting, be placed in heated sealed stove and be heated to 900-1000 ℃, and to carry out pressure be 10
-3-10
-4pa vacuum-treat, was cooled to 650-720 ℃ through 2-3 hour, constant temperature 9-11 hour, then be cooled to 500-650 ℃ through 1-3 hour, and constant temperature 10-14 hour, then to be placed in pressure be 10
-3-10
-4in Pa vacuum, be cooled to 45-55 ℃, come out of the stove.
2. side tooth packing vacuum heat treatment process method according to claim 1, is characterized in that: this processing method comprises the following steps: before the cutting of packing part machinery, be placed in heated sealed stove and be heated to 950 ℃, and carry out 10
-3pa vacuum-treat, was cooled to 700 ℃ through 2.5 hours, constant temperature 10 hours, then be cooled to 600 ℃ through 2 hours, and constant temperature 12 hours, then to be placed in pressure be 10
-4in Pa vacuum, be cooled to 50 ℃, come out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240186.3A CN104212958A (en) | 2013-06-02 | 2013-06-02 | Technology process of lateral gear steam-sealing vacuum heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240186.3A CN104212958A (en) | 2013-06-02 | 2013-06-02 | Technology process of lateral gear steam-sealing vacuum heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104212958A true CN104212958A (en) | 2014-12-17 |
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ID=52094860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310240186.3A Pending CN104212958A (en) | 2013-06-02 | 2013-06-02 | Technology process of lateral gear steam-sealing vacuum heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104212958A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069523A (en) * | 1991-08-13 | 1993-03-03 | 包头钢铁学院 | Annealing technology for relieving stress from alloyed steel ingot |
| JPH07103337A (en) * | 1993-10-04 | 1995-04-18 | High Frequency Heattreat Co Ltd | Seal ring manufacturing method for floating seal |
| CN101092015A (en) * | 2007-08-09 | 2007-12-26 | 航天材料及工艺研究所 | Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision |
| CN102676781A (en) * | 2012-06-03 | 2012-09-19 | 新疆乌苏市北方新科有限公司 | Heat treatment method for mechanical seal wave plate material of corrugated pipe for high-temperature pump |
-
2013
- 2013-06-02 CN CN201310240186.3A patent/CN104212958A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069523A (en) * | 1991-08-13 | 1993-03-03 | 包头钢铁学院 | Annealing technology for relieving stress from alloyed steel ingot |
| JPH07103337A (en) * | 1993-10-04 | 1995-04-18 | High Frequency Heattreat Co Ltd | Seal ring manufacturing method for floating seal |
| CN101092015A (en) * | 2007-08-09 | 2007-12-26 | 航天材料及工艺研究所 | Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision |
| CN102676781A (en) * | 2012-06-03 | 2012-09-19 | 新疆乌苏市北方新科有限公司 | Heat treatment method for mechanical seal wave plate material of corrugated pipe for high-temperature pump |
Non-Patent Citations (1)
| Title |
|---|
| 魏双胜: "00Cr12汽封圈材料热处理工艺研究", 《机械工程师》, 31 July 2012 (2012-07-31) * |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |