CN101597684A - A kind of heat treating method of guide plate - Google Patents
A kind of heat treating method of guide plate Download PDFInfo
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- CN101597684A CN101597684A CNA2009100997813A CN200910099781A CN101597684A CN 101597684 A CN101597684 A CN 101597684A CN A2009100997813 A CNA2009100997813 A CN A2009100997813A CN 200910099781 A CN200910099781 A CN 200910099781A CN 101597684 A CN101597684 A CN 101597684A
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Abstract
The present invention relates to a kind of heat treating method of guide plate, the technical problem to be solved in the present invention is, a kind of heat treating method of guide plate is provided, guarantee the guide plate snappiness, crooked 45 ° of normal bounce-backs are indeformable in the 500mm, planeness is less than 0.2mm in the distance of 1000mm, and integral hardness reaches HRC50 ° ± 2 °.The technical scheme that addresses this problem is: guide plate adopts the 30GrMo alloy steel plate of thick 6mm to process, and heat treating method comprises: A) the monolithic guide plate is put into the 75kW salt bath furnace, heats 150 ± 10 seconds to 850C ° ± 5C °; B) guide plate is put on the press press table, falls top board and compress guide plate; C) press table in the sinking, making guide plate be immersed in temperature is in the 15-20 ℃ of hardening liquid, cools off 3 minutes, guide plate is cleaned with 3% sodium nitrite solution in the back; D) per 20 of guide plate is clipped together and carried out finishing shape, it is interior less than 0.2mm to make planeness reach the 1000mm distance, at last guide plate is put into 70kW well formula tempering stove, 200C ° of tempering 1 hour.The present invention is mainly used in relatively large forest lumbering machineries such as gasoline saw.
Description
Technical field
The present invention relates to a kind of heat treating method of guide plate.Be applicable to relatively large forest lumbering machineries such as gasoline saw.
Background technology
At present, in industries such as forest lumbering, sawmilling, particularly in the lumbering operation of some virgin forests, the lumbering of big machinery has been widely used, and for the big machinery lumbering, guide plate is a very important part.Be used for the harvest guide plate (material 30GrMo, thick 6mm, wide 80-120mm, long 1000-1500mm) of virgin forest big machinery operation now, cutting speed in feet per minute is fast, 12000 rev/mins, requires high.Owing to be mechanical work, the all general guide plate of harvest guide plate requires higher, length surpasses 1000mm, require hardness to reach HRC50 °, and the interior planeness of crooked can normally rebound not modification and 1000mm distance at 45 could satisfy the operation of big machinery less than the requirement of 0.2mm in 500mm.The thermal treatment of current main-stream can reach the hardness requirement, but can not reach the planeness requirement of the interior planeness of every 1000mm distance less than 0.2mm, reaches planeness and requires not reach again the hardness requirement.
Summary of the invention
The technical problem to be solved in the present invention is: the heat treating method that a kind of guide plate is provided, this heat treating method should be simply effective, can guarantee the guide plate snappiness, crooked 45 ° of normal bounce-backs are indeformable in 500mm, planeness is less than 0.2mm in the distance of 1000mm, integral hardness reaches HRC50 ° ± 2 °, to satisfy the requirement of big machinery operation.
The technical solution adopted in the present invention is: a kind of heat treating method of guide plate, it is characterized in that this guide plate adopts the 30GrMo alloy steel plate of thick 6mm to process, and its heat treating method may further comprise the steps:
A), the monolithic guide plate is put into the 75kw salt bath furnace, heat 150 ± 10 seconds to 850C ° ± 5C °;
B), with steps A) guide plate that obtains is put on the press table of press, falls top board and compresses guide plate, makes flat appearance, laminate material is a spheroidal graphite cast iron;
C), sink to going up press table fast, guide plate integral body is immersed in the hardening liquid, cooled off 3 minutes, hardening liquid is a water, and use the frozen water machine to make temperature remain on 15-20 ℃, take out guide plate then, put into rinse bath and clean with 3% sodium nitrite solution, clean surface oxide compound and impurity and short-term are antirust;
D), with step C) per 20 of guide plate obtaining clips together, then the guide plate that clips is placed on and carries out finishing shape on the press, planeness is reached in the distance of 1000mm less than 0.2mm, at last guide plate is put into 70kw well formula tempering stove, be controlled at 200C ° of tempering 1 hour, strengthen the guide plate snappiness, make the crooked 45 ° of not modification that can rebound of guide plate.
Evenly offer one group of through hole on described top board and the press table, make hardening liquid can touch guide plate, and evenly offer one group of V-shaped groove that is parallel to each other, hardening liquid can be flowed fast at a side surface that contacts with guide plate.
The invention has the beneficial effects as follows: guide plate adopts the 30GrMo materials processing of thick 6mm to form, and integral hardness can reach HRC50 ° ± 2 °, in the distance of 1000mm planeness less than 0.2mm, and the crooked not modification that can normally rebound at 45 in the 500mm.
Description of drawings
Fig. 1 is the front view of guide plate.
Fig. 2 is the synoptic diagram of guide plate when carrying out shaping just.
Fig. 3 is the synoptic diagram of guide plate of the present invention when carrying out finishing shape.
Fig. 4 is the front view of upper and lower pressing plate among the present invention.
Fig. 5 is the upward view of Fig. 4.
Embodiment
Embodiment 1,
Present embodiment adopts the 30GrMo alloy steel plate of thick 6mm to process, and its heat treating method may further comprise the steps:
A), monolithic guide plate 1 is put into the 75kw salt bath furnace, heated 140 seconds to 845C °;
B), with steps A) guide plate that obtains is put on the press table 3 of press, falls top board 2 and compresses guide plate 1, carries out shaping just, makes flat appearance, laminate material is a spheroidal graphite cast iron;
C), sink to going up press table fast, guide plate 1 integral body is immersed in the hardening liquid 5, cooled off 3 minutes, hardening liquid 5 is a water in this example, and use the frozen water machine to make temperature remain on 15 ℃, take out guide plate 1 then, put into rinse bath and clean with 3% sodium nitrite solution, clean surface oxide compound and impurity and short-term are antirust;
D), with step C) per 20 of guide plate obtaining clips together, then the guide plate that clips is placed on and carries out finishing shape on the press, planeness is reached in the distance of 1000mm less than 0.2mm, at last guide plate 1 is put into 70kw well formula tempering stove (outsourcing), be controlled at 200C ° of tempering 1 hour, strengthen the guide plate snappiness, make the crooked 45 ° of not modification that can rebound of guide plate.
Present embodiment adopts the 30GrMo alloy steel plate of thick 6mm to process, and its heat treating method may further comprise the steps:
A), monolithic guide plate 1 is put into the 75kw salt bath furnace, heated 160 seconds to 855C °;
B), with steps A) guide plate that obtains is put on the press table 3 of press, falls top board 2 and compresses guide plate 1, carries out shaping just, makes flat appearance, laminate material is a spheroidal graphite cast iron;
C), sink to going up press table fast, guide plate 1 integral body is immersed in the hardening liquid 5, cooled off 3 minutes, hardening liquid 5 is a water in this example, and use the frozen water machine to make temperature remain on 20 ℃, take out guide plate 1 then, put into rinse bath and clean with 3% sodium nitrite solution, clean surface oxide compound and impurity and short-term are antirust;
D), with step C) per 20 of guide plate obtaining clips together, then the guide plate that clips is placed on and carries out finishing shape on the press, planeness is reached in the distance of 1000mm less than 0.2mm, at last guide plate 1 is put into 70kw well formula tempering stove (outsourcing), be controlled at 200C ° of tempering 1 hour, strengthen the guide plate snappiness, make the crooked 45 ° of not modification that can rebound of guide plate.
Embodiment 3,
Present embodiment adopts the 30GrMo alloy steel plate of thick 6mm to process, and its heat treating method may further comprise the steps:
A), monolithic guide plate 1 is put into the 75kw salt bath furnace, heated 150 seconds to 850C °;
B), with steps A) guide plate that obtains is put on the press table 3 of press, falls top board 2 and compresses guide plate 1, carries out shaping just, makes flat appearance, laminate material is a spheroidal graphite cast iron;
C), sink to going up press table fast, guide plate 1 integral body is immersed in the hardening liquid 5, cooled off 3 minutes, hardening liquid 5 is a water in this example, and use the frozen water machine to make temperature remain on 18 ℃, take out guide plate 1 then, put into rinse bath and clean with 3% sodium nitrite solution, clean surface oxide compound and impurity and short-term are antirust;
D), with step C) per 20 of guide plate obtaining clips together, then the guide plate that clips is placed on and carries out finishing shape on the press, planeness is reached in the distance of 1000mm less than 0.2mm, at last guide plate 1 is put into 70kw well formula tempering stove (outsourcing), be controlled at 200C ° of tempering 1 hour, strengthen the guide plate snappiness, make the crooked 45 ° of not modification that can rebound of guide plate.
In the foregoing description, evenly offer one group of through hole 7 on top board 2 and the press table 3, make hardening liquid 5 can touch guide plate 1, and evenly offer one group of V-shaped groove that is parallel to each other 8, hardening liquid 5 can be flowed fast at a side surface that contacts with guide plate 1.Employed press can be made by oneself among the embodiment, also can transform existing common press, a container that hardening liquid 5 is housed is structurally arranged, be provided with at least two vertical guide rails 4 in it, be with top board 2 moving up and down and press table 3 on the guide rail, described upper and lower pressing plate also can be a two clamping plates 6, is added with controllable pressure P on top board 2.
Claims (2)
1, a kind of heat treating method of guide plate is characterized in that this guide plate adopts the 30GrMo alloy steel plate of thick 6mm to process, and its heat treating method may further comprise the steps:
A), monolithic guide plate (1) is put into the 75kw salt bath furnace, heat 150 ± 10 seconds to 850C ° ± 5C °;
B), with steps A) guide plate that obtains is put on the press table (3) of press, falls top board (2) and compresses guide plate (1), makes flat appearance, laminate material is a spheroidal graphite cast iron;
C), sink to going up press table fast, guide plate (1) integral body is immersed in the hardening liquid (5), cooled off 3 minutes, hardening liquid (5) is a water, and use the frozen water machine to make temperature remain on 15-20 ℃, take out guide plate (1) then, put into rinse bath and clean with 3% sodium nitrite solution, clean surface oxide compound and impurity and short-term are antirust;
D), with step C) per 20 of guide plate obtaining clips together, then the guide plate that clips is placed on and carries out finishing shape on the press, planeness is reached in the distance of 1000mm less than 0.2mm, at last guide plate (1) is put into 70kw well formula tempering stove, be controlled at 200C ° of tempering 1 hour, strengthen the guide plate snappiness, make the crooked 45 ° of not modification that can rebound of guide plate.
2, the heat treating method of guide plate according to claim 1, it is characterized in that: evenly offer one group of through hole (7) on described top board (2) and the press table (3), and evenly offer one group of V-shaped groove that is parallel to each other (8) at a side surface that contacts with guide plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100997813A CN101597684B (en) | 2009-06-12 | 2009-06-12 | Heat treatment method of guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100997813A CN101597684B (en) | 2009-06-12 | 2009-06-12 | Heat treatment method of guide plate |
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| Publication Number | Publication Date |
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| CN101597684A true CN101597684A (en) | 2009-12-09 |
| CN101597684B CN101597684B (en) | 2011-10-26 |
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| CN2009100997813A Active CN101597684B (en) | 2009-06-12 | 2009-06-12 | Heat treatment method of guide plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425350A (en) * | 2016-12-23 | 2017-02-22 | 诺鑫（南通）医疗技术有限公司 | Preparation method of medical power reciprocating saw blade |
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2009
- 2009-06-12 CN CN2009100997813A patent/CN101597684B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425350A (en) * | 2016-12-23 | 2017-02-22 | 诺鑫（南通）医疗技术有限公司 | Preparation method of medical power reciprocating saw blade |
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| CN101597684B (en) | 2011-10-26 |
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