CN103834785A - Heat treatment method of blade of rotary cultivator - Google Patents
Heat treatment method of blade of rotary cultivator Download PDFInfo
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- CN103834785A CN103834785A CN201210491819.3A CN201210491819A CN103834785A CN 103834785 A CN103834785 A CN 103834785A CN 201210491819 A CN201210491819 A CN 201210491819A CN 103834785 A CN103834785 A CN 103834785A
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Abstract
The invention discloses a heat treatment method of a blade of a rotary cultivator and relates to the technical field of heat treatment. The heat treatment method is characterized in that a cutting edge part is subjected to heat treatment by utilizing a method combined with austenite heat treatment and ferrite chemical heat treatment, and a knife handle part is subjected to the heat treatment by utilizing boriding surface treatment and localized tempering manners. After being subjected to the heat treatment, the blade has the advantages of good quality, long anti-fatigue life, wear resistance, corrosion resistance and environmental friendliness.
Description
Technical field
The present invention relates to heat treatment technics field, specifically relate to a kind of heat treating method of For Rotary Tiller Blade.
Background technology
Rotary cultivator is to complete cultivation machinery cultivated, rake operation with tractor, and because rotary cultivator has, hack ability is strong, the smooth feature in cultivated rear earth's surface, is widely used.Blade is the vitals of rotary cultivator work, what the application at present of the blade of rotary cultivator was more is the left and right tulwar that head-bent, external arc have longer cutting edge, because For Rotary Tiller Blade directly contacts the foreign material such as soil and weeds of various differing textures, hardness and the erosion resistance of blade are had relatively high expectations, in order to ensure the quality of blade, in the work-ing life that extends rotary cultivator, need blade to heat-treat.Existing heat treating method is difficult to meet the requirement of For Rotary Tiller Blade aspect anti-fatigue life, wear resistance, erosion resistance.
Summary of the invention
In view of the defect that prior art exists, the object of the invention is to provide the blade quality after a kind of thermal treatment good, anti-fatigue life is long, wear-resisting, corrosion-resistant, the heat treating method of environmental protection.
For achieving the above object, heat treating method of the present invention is the method that adopts austenite thermal treatment and ferrite thermo-chemical treatment to combine: the method that adopts austenite thermal treatment and ferrite thermo-chemical treatment to combine is divided into row thermal treatment to blade part, adopts boronising surface treatment and localized tempering tool setting shank to heat-treat.
The technology used in the present invention solution is:
(1) by technical grade borax 550 DEG C～650 DEG C dry 5～6 hours, reheat to 850 DEG C～900 DEG C and melt; Technical grade sodium-chlor is dried to 3 hours at 350 DEG C～400 DEG C, joins in borax and mix, blending ratio is that borax is 16:4 than sodium-chlor, is warming up to 900 DEG C～950 DEG C, makes it be full of pending blade and handle of a knife surrounding, keeps 5 hours.
(2) ammonia process is purified, be heated to 550 DEG C～650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in mixing tank, and temperature is remained within 650 DEG C～850 DEG C, and applying 0.2～0.4Pa barometric point, sulphur nitrogen ion forms eddy current through rotational flow pipeline and is full of at a slow speed the blade surrounding of passing through (1) processing, after 3 hours, cooling, in the time that temperature is down to 350 DEG C～400 DEG C, stop ammonia and pass into, continue to be cooled to blade cooling.
(3) by passing through the blade of (2) processing and having passed through within the scope of the handle of a knife fast cooling to 200 DEG C of (1) processing～250 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour; Be warming up to again within the scope of 700 DEG C～750 DEG C, keep vacuum state, carry out high tempering, be incubated 6 hours, then be down to room temperature.
The method that adopts austenite thermal treatment and ferrite thermo-chemical treatment to combine due to the present invention, it is good that blade after thermal treatment has blade quality, anti-fatigue life is long, wear-resisting, corrosion-resistant, the advantage of environmental protection, extend the work-ing life of rotary cultivator, saved cost, whole heat treatment process environmental protection, is a kind of novel method with promotional value.
Owing to having adopted technique scheme, the present invention is not only convenient to produce, and cost is very cheap is suitable for extensive popularization.
Embodiment
Embodiment of the present invention is:
(1) by technical grade borax 550 DEG C～650 DEG C dry 5～6 hours, reheat to 850 DEG C～900 DEG C and melt; Technical grade sodium-chlor is dried to 3 hours at 350 DEG C～400 DEG C, joins in borax and mix, blending ratio is that borax is 16:4 than sodium-chlor, is warming up to 900 DEG C～950 DEG C, makes it be full of pending blade and handle of a knife surrounding, keeps 5 hours.
(2) ammonia process is purified, be heated to 550 DEG C～650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in mixing tank, and temperature is remained within 650 DEG C～850 DEG C, and applying 0.2～0.4Pa barometric point, sulphur nitrogen ion forms eddy current through rotational flow pipeline and is full of at a slow speed the blade surrounding of passing through (1) processing, after 3 hours, cooling, in the time that temperature is down to 350 DEG C～400 DEG C, stop ammonia and pass into, continue to be cooled to blade cooling.
(3) by passing through the blade of (2) processing and having passed through within the scope of the handle of a knife fast cooling to 200 DEG C of (1) processing～250 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour; Be warming up to again within the scope of 700 DEG C～750 DEG C, keep vacuum state, carry out high tempering, be incubated 6 hours, then be down to room temperature.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. a heat treating method for For Rotary Tiller Blade, is characterized in that: by technical grade borax 550 DEG C～650 DEG C dry 5～6 hours, reheat to 850 DEG C～900 DEG C and melt; Technical grade sodium-chlor is dried to 3 hours at 350 DEG C～400 DEG C, joins in borax and mix, blending ratio is that borax is 16:4 than sodium-chlor, is warming up to 900 DEG C～950 DEG C, makes it be full of pending blade surrounding, keeps 5 hours; Ammonia process is purified, be heated to 550 DEG C～650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in mixing tank, and temperature is remained within 650 DEG C～850 DEG C, and applying 0.2～0.4Pa barometric point, sulphur nitrogen ion forms eddy current through rotational flow pipeline and is full of at a slow speed blade surrounding, after 3 hours, cooling, in the time that temperature is down to 350 DEG C～400 DEG C, stop ammonia and pass into, continue to be cooled to blade cooling; By within the scope of blade fast cooling to 200 DEG C～250 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour; Be warming up to again within the scope of 700 DEG C～750 DEG C, keep vacuum state, carry out high tempering, be incubated 6 hours, then be down to room temperature;
By technical grade borax 550 DEG C～650 DEG C dry 5～6 hours, reheat to 850 DEG C～900 DEG C and melt; Technical grade sodium-chlor is dried to 3 hours at 350 DEG C～400 DEG C, joins in borax and mix, blending ratio is that borax is 16:4 than sodium-chlor, is warming up to 900 DEG C～950 DEG C, makes it be full of pending handle of a knife surrounding, keeps 5 hours; By within the scope of handle of a knife fast cooling to 200 DEG C～250 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour; Be warming up to again within the scope of 700 DEG C～750 DEG C, keep vacuum state, carry out high tempering, be incubated 6 hours, then be down to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491819.3A CN103834785A (en) | 2012-11-27 | 2012-11-27 | Heat treatment method of blade of rotary cultivator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491819.3A CN103834785A (en) | 2012-11-27 | 2012-11-27 | Heat treatment method of blade of rotary cultivator |
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| CN103834785A true CN103834785A (en) | 2014-06-04 |
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| CN201210491819.3A Pending CN103834785A (en) | 2012-11-27 | 2012-11-27 | Heat treatment method of blade of rotary cultivator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805396A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment technology of straw harvester blade |
| CN104805395A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Preparation method of straw harvester blade |
| CN104805454A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment process for blade of rotary cultivator |
| CN104805394A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment process for blade of rotary cultivator |
-
2012
- 2012-11-27 CN CN201210491819.3A patent/CN103834785A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805396A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment technology of straw harvester blade |
| CN104805395A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Preparation method of straw harvester blade |
| CN104805454A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment process for blade of rotary cultivator |
| CN104805394A (en) * | 2015-04-30 | 2015-07-29 | 柳州三农科技有限公司 | Heat treatment process for blade of rotary cultivator |
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Application publication date: 20140604 |