CN104831292A - Heat treatment technique for steel tie rod ends - Google Patents
Heat treatment technique for steel tie rod ends Download PDFInfo
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- CN104831292A CN104831292A CN201510241462.7A CN201510241462A CN104831292A CN 104831292 A CN104831292 A CN 104831292A CN 201510241462 A CN201510241462 A CN 201510241462A CN 104831292 A CN104831292 A CN 104831292A
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Abstract
The invention provides a heat treatment technique for steel tie rod ends. The heat treatment technique comprise the steps: heating a forged steel tie rod to 980 DEG C and holding the temperature for 1-2 hours; cooling with oil the temperature is lower than or equal to 100 DEG C, then re-heating the steel tie rod to 700-720 DEG C and holding the temperature for 2 hours, and then performing water cooling; after performing a tempering process, heating the head of the steel tie rod to 330-370 DEG C, holding the temperature for 4-5 hours, performing a spraying cooling process, heating the tail of the steel tie rod to 920-1000 DEG C, holding the temperature for 6-8 hours, and then performing air cooling. According to the heat treatment technique for the steel tie rod ends, the whole structure is scientific and reasonable; in use, when different types of steel tie rods different in length are produced due to the suitability of regulating different types, a shaft head only needs to be heated to a temperature required by the technique once, the steel tie rods can be formed at one time; therefore, the problems of multiple heating and multiple forging in the traditional technique are reduced.
Description
Technical field
The present invention relates to a kind of Steel Rod termination thermal treatment process, belong to casting technology field.
Background technology
Engine steel pull bar is as important moving parts, and design requirements is high, simultaneously because of Steel Rod operating mode and severe, thus requires very strict to Steel Rod material, Steel Rod dimensional precision, surfaceness, thermal treatment and surface strengthening, transient equilibrium etc.Under the condition produced in enormous quantities, traditional technology can not meet current design and Production requirement, long-time, run up under, as easy as rolling off a log too early appearances of Steel Rod was lost efficacy or ruptured, and had a strong impact on life-span and the whole aircraft reliability of Steel Rod.
Summary of the invention
The invention provides a kind of Steel Rod termination thermal treatment process, the above defect can be overcome.
For solving above technical problem, the invention provides following technical scheme: a kind of Steel Rod termination thermal treatment process, comprises the following steps:
A, thermal treatment
Steel Rod after forging is heated to 980 DEG C and is incubated 1-2h, and oil cooling is to higher than reheating the temperature range to 700 DEG C-720 DEG C after 100 DEG C and being incubated 2h, water-cooled afterwards; After temper, again the head of Steel Rod is heated to 330-370 DEG C, insulation 4-5 hour, then spray cooling process, the afterbody of Steel Rod, at 920-1000 DEG C, is incubated 6-8 hour, then air cooling, heating to temperature in the middle part of last Steel Rod is again 160 ~ 180 DEG C, and insulation 2-3 hour, puts into iron case cooling in heap;
B, bonderizing, be 280-300 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1-2min of 8, after dripping empty 1-2min, adopt phosphorization agent process 15-20min, then after dripping empty 1-2min, adopt clean water 1-2min, after dripping empty 1-2min again, process 0.5-1min with hot water workpiece being placed in 80-90 DEG C;
C, by the workpiece Shot Blasting after bonderizing;
The head of the Steel Rod after Shot Blasting is heated to 350 DEG C, is incubated 4.5 hours, then spray cooling process, the afterbody of Steel Rod, at 990 DEG C, is incubated 7 hours, then air cooling, heating to temperature in the middle part of last Steel Rod is again 170 DEG C, is incubated 2.5 hours, puts into iron case cooling in heap.
Steel Rod termination provided by the invention thermal treatment process, one-piece construction is scientific and reasonable, during use, only need by the Steel Rod of different model, according to length, owing to having the adaptability of adjustable different model, during production, only once spindle nose need be heated to technique temperature required, just can once shaped, thus, the traditional technology trouble decreasing heating for multiple times and repeatedly forge.
Embodiment
A kind of Steel Rod termination thermal treatment process, comprises the following steps:
A, thermal treatment
Steel Rod after forging is heated to 980 DEG C and is incubated 1-2h, and oil cooling is to higher than reheating the temperature range to 700 DEG C-720 DEG C after 100 DEG C and being incubated 2h, water-cooled afterwards; After temper, again the head of Steel Rod is heated to 330-370 DEG C, insulation 4-5 hour, then spray cooling process, the afterbody of Steel Rod, at 920-1000 DEG C, is incubated 6-8 hour, then air cooling, heating to temperature in the middle part of last Steel Rod is again 160 ~ 180 DEG C, and insulation 2-3 hour, puts into iron case cooling in heap;
B, bonderizing, be 280-300 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1-2min of 8, after dripping empty 1-2min, adopt phosphorization agent process 15-20min, then after dripping empty 1-2min, adopt clean water 1-2min, after dripping empty 1-2min again, process 0.5-1min with hot water workpiece being placed in 80-90 DEG C;
C, by the workpiece Shot Blasting after bonderizing;
The head of the Steel Rod after Shot Blasting is heated to 350 DEG C, is incubated 4.5 hours, then spray cooling process, the afterbody of Steel Rod, at 990 DEG C, is incubated 7 hours, then air cooling, heating to temperature in the middle part of last Steel Rod is again 170 DEG C, is incubated 2.5 hours, puts into iron case cooling in heap.
Steel Rod termination provided by the invention thermal treatment process, one-piece construction is scientific and reasonable, during use, only need by the Steel Rod of different model, according to length, owing to having the adaptability of adjustable different model, during production, only once spindle nose need be heated to technique temperature required, just can once shaped, thus, the traditional technology trouble decreasing heating for multiple times and repeatedly forge.
Embodiment of the present invention does not form the restriction to the application's scope; within every spirit in the present invention's design and principle, any amendment that one of skill in the art can make, equivalent to replace and improvement etc. all should be included within protection scope of the present invention.
Claims (1)
1. a Steel Rod termination thermal treatment process, is characterized in that, comprises the following steps:
A, thermal treatment
Steel Rod after forging is heated to 980 DEG C and is incubated 1-2h, and oil cooling is to higher than reheating the temperature range to 700 DEG C-720 DEG C after 100 DEG C and being incubated 2h, water-cooled afterwards; After temper, again the head of Steel Rod is heated to 330-370 DEG C, insulation 4-5 hour, then spray cooling process, the afterbody of Steel Rod, at 920-1000 DEG C, is incubated 6-8 hour, then air cooling, heating to temperature in the middle part of last Steel Rod is again 160 ~ 180 DEG C, and insulation 2-3 hour, puts into iron case cooling in heap;
B, bonderizing, be 280-300 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1-2min of 8, after dripping empty 1-2min, adopt phosphorization agent process 15-20min, then after dripping empty 1-2min, adopt clean water 1-2min, after dripping empty 1-2min again, process 0.5-1min with hot water workpiece being placed in 80-90 DEG C;
C, by the workpiece Shot Blasting after bonderizing;
The head of the Steel Rod after Shot Blasting is heated to 350 DEG C, is incubated 4.5 hours, then spray cooling process, the afterbody of Steel Rod, at 990 DEG C, is incubated 7 hours, then air cooling, heating to temperature in the middle part of last Steel Rod is again 170 DEG C, is incubated 2.5 hours, puts into iron case cooling in heap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241462.7A CN104831292A (en) | 2015-05-13 | 2015-05-13 | Heat treatment technique for steel tie rod ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241462.7A CN104831292A (en) | 2015-05-13 | 2015-05-13 | Heat treatment technique for steel tie rod ends |
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| CN104831292A true CN104831292A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510241462.7A Pending CN104831292A (en) | 2015-05-13 | 2015-05-13 | Heat treatment technique for steel tie rod ends |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756438A (en) * | 2016-12-05 | 2017-05-31 | 安徽永川电气设备有限公司 | A kind of AC low-tension switch cabinet preparation |
| CN106764175A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of anti-dropout metal hose joint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886646A (en) * | 2012-09-11 | 2013-01-23 | 昌利锻造有限公司 | Process for forging end head of electric upset steel pull rod |
| EP2596902A1 (en) * | 2011-11-28 | 2013-05-29 | General Electric Company | Method for decarburization of a rotor forging |
| CN104480477A (en) * | 2014-11-20 | 2015-04-01 | 海盐汇联通用配件有限公司 | Production process of corrosion-resistant high-strength hexagon bolts |
-
2015
- 2015-05-13 CN CN201510241462.7A patent/CN104831292A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2596902A1 (en) * | 2011-11-28 | 2013-05-29 | General Electric Company | Method for decarburization of a rotor forging |
| CN102886646A (en) * | 2012-09-11 | 2013-01-23 | 昌利锻造有限公司 | Process for forging end head of electric upset steel pull rod |
| CN104480477A (en) * | 2014-11-20 | 2015-04-01 | 海盐汇联通用配件有限公司 | Production process of corrosion-resistant high-strength hexagon bolts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756438A (en) * | 2016-12-05 | 2017-05-31 | 安徽永川电气设备有限公司 | A kind of AC low-tension switch cabinet preparation |
| CN106764175A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of anti-dropout metal hose joint |
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Application publication date: 20150812 |