CN102367581A - Multifunctional crown block breaking head - Google Patents
Multifunctional crown block breaking head Download PDFInfo
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- CN102367581A CN102367581A CN2011103243406A CN201110324340A CN102367581A CN 102367581 A CN102367581 A CN 102367581A CN 2011103243406 A CN2011103243406 A CN 2011103243406A CN 201110324340 A CN201110324340 A CN 201110324340A CN 102367581 A CN102367581 A CN 102367581A
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- attacking head
- multifunction crane
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Abstract
The invention provides a multifunctional crown block breaking head of which the material is Crl2MoV. The preparation method of the breaking head comprises the following steps of: preheating twice, quenching at 1000-1100 DEG C, tempering at 400-500 DEG C, keeping the temperature for 2-3 hours, cooling to the room temperature, tempering at 180-240 DEG C again, keeping the temperature for 3-4 hours, and cooling to the room temperature to ensure that the hardness of the product reaches HRC58-62. The multifunctional crown block breaking head has higher strength, hardness and rigidity and better heat resistance, wear resistance and fatigue resistance; and when in use, the breaking head is difficult to bend or break and the service life of the breaking head is higher.
Description
Technical field
The present invention relates to a kind of multifunction crane attacking head, belong to the multifunction crane equipment technical field.
Background technology
The multifunction crane attacking head is one of three big parts of multifunction crane crust breaker, and its crust breaking work is frequent, and environment is abominable, and failure rate is high, and work-ing life is short.Attacking head directly bears hitting power in hitting broken aluminum hull process, its collapse mode is mainly bending or fracture, and the attacking head duration of service that has is very short just to fracture; Section is macromeritic, belongs to brittle rupture, mainly is that attacking head thermal treatment intensity, hardness are too high; Crystal grain is thick to be caused, and has in use for some time, ruptures; Be not normal wear out failure, major cause is that material is selected improper or tempering heat treatment is insufficient, and tissue does not have refinement; Bending is because material hardness is too low, due to rigidity is not enough.
Summary of the invention
The present invention is in order to overcome the deficiency of prior art, a kind of multifunction crane attacking head to be provided, and when improving intensity, hardness and the rigidity of attacking head, improves its thermotolerance, wear resistance and fatigue performance, has increased substantially the work-ing life of attacking head.
Multifunction crane attacking head of the present invention, its each several part is of a size of: L is 350mm, L
1Be 180mm, L
2Be 70mm, L
3Be 75mm, L
4Be 25mm, L
5Be 56mm, φ
1Be 60mm, φ
2Be 70mm, φ
3Be 50mm.
Described multifunction crane attacking head material material is Crl2MoV.
Multifunction crane attacking head thermal treatment process step of the present invention is:
1, part that roughing is good is packed into and is carried out the secondary preheating in the heat treatment furnace, for the first time preheating temperature: 300～500 ℃, and preheating temperature for the second time: 840～860 ℃;
The part that 2, will pass through the secondary preheating carries out quenching heat treatment, and quenching temperature is 1000～1100 ℃, is incubated 20～30 minutes;
3, carry out oil quenching, heat-eliminating medium: machine oil, medium temperature: 20～60 ℃, be cooled to the oil temperature, subsequently, air cooling is to room temperature, HRC=62～65;
4, part is carried out double tempering, 400～500 ℃ of tempering once, be incubated 2～3 hours, be cooled to room temperature, and then carry out the tempering second time, 180～240 ℃ of tempering temperatures are incubated 3～4 hours, and postcooling is to room temperature, and hardness reaches HRC58-62;
5, part is carried out ground.
Beneficial effect of the present invention:
Multifunction crane attacking head intensity of the present invention, hardness and rigidity are high, and thermotolerance, wear resisting property and fatigue performance are good, in hot environment, use not yielding, long service life.
Description of drawings
Be illustrated as the structural representation of multifunction crane attacking head of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description:
Among the figure: the each several part of multifunction crane attacking head of the present invention is of a size of: L is 350mm, L
1Be 180mm, L
2Be 70mm, L
3Be 75mm, L
4Be 25mm, L
5Be 56mm, φ
1Be 60mm, φ
2Be 70mm, φ
3Be 50mm.
Described multifunction crane attacking head material material is Crl2MoV.
Multifunction crane attacking head thermal treatment process step of the present invention is:
1, part that roughing is good is packed into and is carried out the secondary preheating in the heat treatment furnace, for the first time preheating temperature: 300～500 ℃, and preheating temperature for the second time: 840～860 ℃;
The part that 2, will pass through the secondary preheating carries out quenching heat treatment, and quenching temperature is 1000～1100 ℃, is incubated 20～30 minutes;
3, carry out oil quenching, heat-eliminating medium: machine oil, medium temperature: 20～60 ℃, be cooled to the oil temperature, subsequently, air cooling is to room temperature, HRC=62～65;
4, part is carried out double tempering, 400～500 ℃ of tempering once, be incubated 2～3 hours, be cooled to room temperature, and then carry out the tempering second time, 180～240 ℃ of tempering temperatures are incubated 3～4 hours, and postcooling is to room temperature, and hardness reaches HRC58-62;
5, part is carried out ground.
Claims (3)
1. multifunction crane attacking head, it is characterized in that: it is 350mm that the each several part of said multifunction crane attacking head is of a size of L, L
1Be 180mm, L
2Be 70mm, L
3Be 75mm, L
4Be 25mm, L
5Be 56mm, φ
1Be 60mm, φ
2Be 70mm, φ
3Be 50mm.
2. multifunction crane attacking head as claimed in claim 1 is characterized in that: said multifunction crane attacking head material material is Crl2MoV.
3. the thermal treatment process step of the described multifunction crane attacking head of preparation claim 1 is:
(1), the part that roughing is good packs into and carries out the secondary preheating in the heat treatment furnace, preheating temperature for the first time: 300～500 ℃, preheating temperature for the second time: 840～860 ℃;
(2), the part that will pass through the secondary preheating carries out quenching heat treatment, quenching temperature is 1000～1100 ℃, is incubated 20～30 minutes;
(3), carry out oil quenching, heat-eliminating medium: machine oil, medium temperature: 20～60 ℃, be cooled to the oil temperature, subsequently, air cooling is to room temperature, HRC=62～65;
(4), part is carried out double tempering, 400～500 ℃ of tempering once, be incubated 2～3 hours, be cooled to room temperature, and then carry out the tempering second time, 180～240 ℃ of tempering temperatures are incubated 3～4 hours, and postcooling is to room temperature, and hardness reaches HRC58-62;
(5), part is carried out ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103243406A CN102367581A (en) | 2011-10-21 | 2011-10-21 | Multifunctional crown block breaking head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103243406A CN102367581A (en) | 2011-10-21 | 2011-10-21 | Multifunctional crown block breaking head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367581A true CN102367581A (en) | 2012-03-07 |
Family
ID=45760170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103243406A Pending CN102367581A (en) | 2011-10-21 | 2011-10-21 | Multifunctional crown block breaking head |
Country Status (1)
| Country | Link |
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| CN (1) | CN102367581A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039657A (en) * | 2015-06-29 | 2015-11-11 | 江苏金基特钢有限公司 | Method for improving wear-resisting performance of carbon steel |
| CN107739783A (en) * | 2017-11-28 | 2018-02-27 | 湖北工程职业学院 | A kind of heat treatment quenching process of high carbon and chromium tool steel |
| CN107815521A (en) * | 2017-11-28 | 2018-03-20 | 湖北工程职业学院 | A kind of heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component |
| CN114231701A (en) * | 2021-12-10 | 2022-03-25 | 吉林省齐智科技有限公司 | Non-standard hardness heat treatment method for XW-42 die steel |
-
2011
- 2011-10-21 CN CN2011103243406A patent/CN102367581A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039657A (en) * | 2015-06-29 | 2015-11-11 | 江苏金基特钢有限公司 | Method for improving wear-resisting performance of carbon steel |
| CN107739783A (en) * | 2017-11-28 | 2018-02-27 | 湖北工程职业学院 | A kind of heat treatment quenching process of high carbon and chromium tool steel |
| CN107815521A (en) * | 2017-11-28 | 2018-03-20 | 湖北工程职业学院 | A kind of heat treatment quenching process of high-carbon chrome molybdenum bubbing steel precision component |
| CN114231701A (en) * | 2021-12-10 | 2022-03-25 | 吉林省齐智科技有限公司 | Non-standard hardness heat treatment method for XW-42 die steel |
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Application publication date: 20120307 |