CN101598172A - A kind of eccentric shaft and manufacture method thereof - Google Patents
A kind of eccentric shaft and manufacture method thereof Download PDFInfo
- Publication number
- CN101598172A CN101598172A CNA2009100554069A CN200910055406A CN101598172A CN 101598172 A CN101598172 A CN 101598172A CN A2009100554069 A CNA2009100554069 A CN A2009100554069A CN 200910055406 A CN200910055406 A CN 200910055406A CN 101598172 A CN101598172 A CN 101598172A
- Authority
- CN
- China
- Prior art keywords
- eccentric shaft
- hardened
- forge
- tempered steel
- heating
- 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
Images
Abstract
The invention discloses a kind of eccentric shaft, the material of described eccentric shaft is ferrite-pearlite type non-hardened and tempered steel, particularly 38MnVS6 non-hardened and tempered steel.Its manufacture method comprises: heating, and heating-up temperature is 1150～1200 ℃; Forge, forging process adopts a fire to forge, and the eccentric shaft two ends adopt the low final forging temperature of multi-pass to forge, and final forging temperature is controlled between 850～800 ℃; Cooling is forged the back single-piece and is hung air cooling.The non-hardened and tempered steel eccentric shaft that adopts the present invention to make has been removed modified heat treatment step from, has produced tangible utmost point effect thus, such as having shortened the manufacture cycle; Product distortion and cracking phenomena reduce, and yield rate improves; Energy consumption and environmental pollution have been reduced.As calculated, adopt non-hardened and tempered steel to make eccentric shaft than technology saving power 39%.
Description
Technical field
The present invention relates to a kind of mechanical device, relate in particular to a kind of eccentric shaft.
The invention still further relates to a kind of manufacturing process of mechanical device, relate in particular to a kind of manufacturing process of eccentric shaft.
Background technique
Departments such as jaw crusher is mine, Shi Chang, build the road, bridge works and metallurgy, chemical industry, building materials carry out the broken indispensable equipment of material.And eccentric shaft is the main shaft on the jaw crusher, be the main stressed member of disintegrator, disintegrator moves up and down by the moving jaw in rotation drive both sides of eccentric shaft, angle becomes big between bracket and moving jaw when moving jaw rises, it is approaching to fixed jaw to promote moving jaw plate, thereby with material crushing or split brokenly, reach broken purpose.Therefore; eccentric shaft all has higher requirement to intensity and impact property; usually adopt medium carbon alloy steel after forging, to make through modified heat treatment again; because in conventional art to intensity, toughness reguirements high can obtain the tempered sorbite tissue by modified heat treatment usually, it is good fit that intensity and plasticity, toughness are had.
But quenching with Subsequent tempering is easy to generate heat treating faults such as distortion, cracking in the heat tracing and the extremely cold process of quenching, the reject rate height, and also energy consumption is big, befouling environment, and more and more the incompatibility modern production is to energy-conservation and environmental protection requirement; In addition, for the bigger part in cross section, can't through hardening, cause the performance gap on part heart portion and surface big, influence the comprehensive mechanical property of part.
Summary of the invention
Technical problem to be solved by this invention provides a kind of eccentric shaft and manufacturing process thereof of new material, thus improve product yield rate, cut down the consumption of energy, environmental protection and energy saving more.
As follows for solving the problems of the technologies described above the technical solution adopted in the present invention:
A kind of eccentric shaft, the material of described eccentric shaft are ferrite-pearlite type non-hardened and tempered steels.
The material of described eccentric shaft is the 38MnVS6 non-hardened and tempered steel.
A kind of manufacture method of above-mentioned eccentric shaft, its step comprises:
A. heating, heating-up temperature is 1150～1200 ℃;
B. forge, forging process adopts a fire to forge, and the eccentric shaft two ends adopt the low final forging temperature of multi-pass to forge, and final forging temperature is controlled between 850～800 ℃;
C. cooling is forged the back single-piece and is hung air cooling.
The present invention adopts non-hardened and tempered steel and forges cooling control technology in conjunction with control and make eccentric shaft, contrast through wide variety of materials, performance test has been selected ferrite-pearlite type non-hardened and tempered steel, particularly 38MnVS6 is as the eccentric shaft material, and in conjunction with specific rational control forging cooling control technology, the two ends of eccentric shaft particularly, because this locates the main force part into eccentric shaft, intensity, shock resistance requires very high, the technology that more need adopt the low final forging temperature of multi-pass to forge, forge by control like this and the process means control product microalloying compound of cooling procedure subsequently separate out and produce the grain refinement effect, thereby steel is strengthened.
All reach even surpassed the eccentric shaft of former modified heat treatment manufacturing with the every performance index of eccentric shaft of material of the present invention, technology acquisition, and because the sectional dimension effect of non-hardened and tempered steel is little, each region performance of cross section is even, therefore adopts non-hardened and tempered steel to forge the eccentric shaft combination property that makes behind the air cooling through control and is better than former hardening and tempering process.
The non-hardened and tempered steel eccentric shaft that adopts the present invention to make has been removed modified heat treatment step from, has produced tangible utmost point effect thus, such as having shortened the manufacture cycle; Product distortion and cracking phenomena reduce, and yield rate improves; Energy consumption and environmental pollution have been reduced.As calculated, adopt non-hardened and tempered steel to make eccentric shaft than technology saving power 39%.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the cross section hardness profile curve of the embodiment of the invention 1 non-hardened and tempered steel eccentric shaft,
Wherein abscissa is from (mm) apart from distance of shaft centers; Y coordinate is hardness number (HV)
Fig. 2 is the eccentric shaft schematic representation of embodiment of the invention forging molding.
Wherein:
1. the position of materialsing of eccentric shaft Mechanics Performance Testing in the embodiment of the invention.
Embodiment
Eccentric shaft material of the present invention is: the 38MnVS6 non-hardened and tempered steel.Forge and the directly worth eccentric shaft of cooling procedure by control.
Adopting the 38MnVS6 non-hardened and tempered steel is the raw-material rod that rolls, diameter phi 180mm.Be heated to 1150～1200 ℃.
Forging molding behind the heat tracing (the eccentric shaft schematic representation is seen shown in Figure 2), forging process adopt a fire to forge, and the eccentric shaft two ends adopt the low final forging temperature of multi-pass to forge, 800～850 ℃ of final forging temperatures,
Forge the back single-piece and hang air cooling, adopt the air cooling way cooling.
The performance of each embodiment's variable process parameter and Mechanics Performance Testing result and former hardening and tempering process eccentric shaft such as table 1,2, the cross section hardness profile curve of non-hardened and tempered steel eccentric shaft is seen shown in Figure 1.
Each embodiment's of table 1 variable process parameter
| Embodiment | Heating initial forging temperature ℃ | Final forging temperature ℃ |
| 1 | 1150 | 800 |
| 2 | 1180 | 850 |
| 3 | 1200 | 830 |
Table 238MnVS6 non-hardened and tempered steel and 45 steel eccentric shaft mechanical properties
| Embodiment | Material trademark | Yield strength N/mm 2 | Tensile strength N/mm 2 | Elongation percentage % | Impact absorbing energy J |
| 1 | 38MnVS6 (technology of the present invention) | 555 | 810 | 23 | 66 |
| 2 | 38MnVS6 (technology of the present invention) | 560 | 820 | 22 | 60.0 |
| 3 | 38MnVS6 (technology of the present invention) | 550 | 800 | 21 | 62 |
| Prior art comparative example | 45 steel (former technology) | 475 | 780 | 21 | 60.0 |
Show that by above-mentioned test data the 38MnVS6 non-hardened and tempered steel is applicable to the manufacturing of disintegrator with eccentric shaft.Reduce power consumption about 39% simultaneously.
Claims (3)
1. eccentric shaft, it is characterized in that: the material of described eccentric shaft is a ferrite-pearlite type non-hardened and tempered steel.
2. eccentric shaft according to claim 1 is characterized in that: the material of described eccentric shaft is the 38MnVS6 non-hardened and tempered steel.
3. the manufacture method of an eccentric shaft as claimed in claim 2 is characterized in that step comprises:
A. heating, heating-up temperature is 1150～1200 ℃;
B. forge, forging process adopts a fire to forge, and the eccentric shaft two ends adopt the low final forging temperature of multi-pass to forge, and final forging temperature is controlled between 850～800 ℃;
C. cooling is forged the back single-piece and is hung air cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100554069A CN101598172A (en) | 2009-07-27 | 2009-07-27 | A kind of eccentric shaft and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100554069A CN101598172A (en) | 2009-07-27 | 2009-07-27 | A kind of eccentric shaft and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101598172A true CN101598172A (en) | 2009-12-09 |
Family
ID=41419721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100554069A Pending CN101598172A (en) | 2009-07-27 | 2009-07-27 | A kind of eccentric shaft and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101598172A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039364A (en) * | 2010-11-12 | 2011-05-04 | 无锡宏达重型锻压有限公司 | Shaping process of fan shaft |
| CN104696379A (en) * | 2015-02-10 | 2015-06-10 | 山东金马工业集团股份有限公司 | Yoke product and preparation method thereof |
| CN107475501A (en) * | 2016-06-07 | 2017-12-15 | 江苏恒力制动器制造有限公司 | A kind of Micro Alloying brake camshaft and its manufacture method |
| CN112501505A (en) * | 2020-11-13 | 2021-03-16 | 江苏联峰能源装备有限公司 | Preparation method of non-modulated steel 38MnVS6 |
-
2009
- 2009-07-27 CN CNA2009100554069A patent/CN101598172A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039364A (en) * | 2010-11-12 | 2011-05-04 | 无锡宏达重型锻压有限公司 | Shaping process of fan shaft |
| CN102039364B (en) * | 2010-11-12 | 2015-07-22 | 无锡宏达重型锻压有限公司 | Shaping process of fan shaft |
| CN104696379A (en) * | 2015-02-10 | 2015-06-10 | 山东金马工业集团股份有限公司 | Yoke product and preparation method thereof |
| CN107475501A (en) * | 2016-06-07 | 2017-12-15 | 江苏恒力制动器制造有限公司 | A kind of Micro Alloying brake camshaft and its manufacture method |
| CN107475501B (en) * | 2016-06-07 | 2019-02-12 | 江苏恒力制动器制造有限公司 | A kind of Micro Alloying brake camshaft and its manufacturing method |
| CN112501505A (en) * | 2020-11-13 | 2021-03-16 | 江苏联峰能源装备有限公司 | Preparation method of non-modulated steel 38MnVS6 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5712302B2 (en) | Manufacturing method of foreign parts | |
| CN104017965B (en) | A kind of process technique improving Cr12MoV steel obdurability | |
| CN101787419A (en) | Heat treatment process of AISI4340 steel forgings | |
| CN104532154A (en) | High-hardness high-polishing pre-hardening plastic die steel and manufacture technology thereof | |
| CN104294168B (en) | A kind of high anti-contact fatigue cold-rolling intermediate roll and manufacture method thereof | |
| CN104928594B (en) | The manufacture method of aluminium Casting Roller set with thermal fatigue resistance | |
| CN103205551A (en) | Thermal treatment processing method of thrust wheel | |
| JP2015188927A (en) | Production method of forged member | |
| CN101598172A (en) | A kind of eccentric shaft and manufacture method thereof | |
| CN101717892B (en) | Hot die steel and tempering process thereof | |
| CN101942550B (en) | Heat treatment process for hollow drill collar | |
| CN101818236B (en) | Method for manufacturing high carbon steel wheel | |
| CN105714027A (en) | Heat treatment process for hardening and tempering of 45 steel | |
| CN107058704A (en) | A kind of process of elimination 4Cr13 stainless steel rings rolled piece annealed state net carbon | |
| CN103464977B (en) | A kind of manufacture method of irregular arm | |
| CN107794348A (en) | A kind of Technology for Heating Processing of raising Cr12MoV steel combination properties | |
| WO2009064234A1 (en) | A process for forming steel | |
| CN103658931B (en) | The method of the double-deck built-up welding of a kind of axletree swage block | |
| CN103667615A (en) | Thermal treatment method of 42CrMo workpiece | |
| JP2010172947A (en) | Method of super-high temperature hot forging | |
| CN110295331A (en) | Quenching and tempering type 5Cr2NiMoVSi hot die steel | |
| CN102676939B (en) | Thermal treatment process for 18Cr17Ni2 modified stainless steel material | |
| CN109055683B (en) | Vacuum grading gas quenching method for D6AC ultrahigh-strength steel thin-wall shell | |
| CN103993153B (en) | A kind of Medium frequency induction Tempering and Quenching method of axle | |
| CN103014253A (en) | Thermal treatment method of 60Si2Mn steel subjected to friction welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20091209 |