CN104805454A - Heat treatment process for blade of rotary cultivator - Google Patents
Heat treatment process for blade of rotary cultivator Download PDFInfo
- Publication number
- CN104805454A CN104805454A CN201510215763.2A CN201510215763A CN104805454A CN 104805454 A CN104805454 A CN 104805454A CN 201510215763 A CN201510215763 A CN 201510215763A CN 104805454 A CN104805454 A CN 104805454A
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- Prior art keywords
- blade
- temperature
- hours
- cooling
- grade
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 15
- WDIHJSXYQDMJHN-UHFFFAOYSA-L Barium chloride Chemical compound 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[Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910001626 barium chloride Inorganic materials 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 12
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- 239000010959 steel Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 6
- 239000011780 sodium chloride Substances 0.000 abstract 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L Sodium thiosulphate Chemical compound 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[Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 235000019345 sodium thiosulphate Nutrition 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 4
- 238000003971 tillage Methods 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003245 working Effects 0.000 description 1
Abstract
The invention discloses a heat treatment process for a blade of a rotary cultivator. The heat treatment process comprises the following steps: heating technical-grade barium chloride to the temperature of 850-900 DEG C, and melting the heated barium chloride; drying technical-grade sodium chloride for 3 hours at the temperature of 350-400 DEG C, adding the dried sodium chloride into barium chloride to be mixed uniformly according to the condition that the mixing ratio of barium chloride to sodium chloride is 7:3, raising the temperature to be 800-850 DEG C, enabling the surroundings of the blade to be processed to be filled with the mixture, and retaining for 5 hours; heating the purified ammonia gas to the temperature of 550-650 DEG C through a spiral pipeline, enabling the ammonia gas to separate out nitrogen molecules through heating, adding sodium thiosulfate into a mixer, keeping the temperature to be within 650-850 DEG C, applying atmospheric pressure of 0.2-0.4 Pa, enabling the surroundings of the blade to be slowly filled with the vortex formed by the sulfur-nitrogen ions through a rotational flow pipeline, 3 hours later, cooling, when the temperature is reduced to be 350-400 DEG C, stopping introduction of the ammonia gas, and continuing to cool until the blade is cooled; quickly cooling the blade to be within the range of 250-320 DEG C, pumping out the air till vacuum, performing isothermal quenching treatment, preserving the heat for 1 hour, and then performing air cooling to enable the temperature to be reduced to room temperature.
Description
Technical field
The invention belongs to field of agricultural machinery, be specifically related to a kind of thermal treatment process of For Rotary Tiller Blade.
background technologyrotary cultivator be a kind of by tractor motive power output shaft drive drive be equipped with blade roll rumble has rotated cultivated, to harrow, tillage operation, vegetation blank can be mixed in whole arable layer by it, also can impose on arable layer by mixed to chemical fertilizer, agricultural chemicals etc.Rotary cultivator be mainly used in farmland plant, sow before cultivated tillage operation.Rotary cultivator use tractor export power, drive Rotary tillage blade cut and stir soil, and by the soil block cut backward throwing and mud cover clash into, make soil block broken further, then grading supporting plate earth's surface is dragged scrape smooth, once complete plough and operation of raking the soil level.The grinding of blade and more allowing blade replacement are parts that is the most easy to wear and that damage, and its state of the art has a significant impact operation quality.
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of thermal treatment process of For Rotary Tiller Blade.There is feature not easy to wear, cost-saving.
Object of the present invention carrys out specific implementation by the following technical programs:
A thermal treatment process for For Rotary Tiller Blade, comprises the following steps, and technical grade bariumchloride is heated to 850 DEG C ~ 900 DEG C and melts; By technical grade sodium-chlor 350 DEG C ~ 400 DEG C dryings 3 hours, join in bariumchloride and mix, blending ratio is bariumchloride is 7:3 than sodium-chlor, is warming up to 800 DEG C ~ 850 DEG C, makes it be full of pending blade surrounding, keeps 5 hours; By ammonia through purification, be heated to 550 DEG C ~ 650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in a mixer, and make temperature remain 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 slower speeds full of blade surrounding, after 3 hours, cooling, when temperature is down to 350 DEG C ~ 400 DEG C, stop ammonia passing into, continue to be cooled to blade cooling; By within the scope of blade fast cooling to 250 DEG C ~ 320 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour, then air cooling is down to room temperature.
Further, blade material is bearing steel or 60Si2Mn spring steel.
Further, blade cutting edge thickness≤0.5mm, hardness is HRC50 ~ 55.
Compared with prior art, the present invention has following beneficial effect:
The present invention is not easy to wear, extends the work-ing life of For Rotary Tiller Blade, has saved cost, whole heat treatment process environmental protection.Owing to have employed technique scheme, the present invention is not only convenient to produce, and cost is very cheap is suitable for extensive popularization.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
A thermal treatment process for For Rotary Tiller Blade, comprises the following steps, and technical grade bariumchloride is heated to 850 DEG C ~ 900 DEG C and melts; By technical grade sodium-chlor 350 DEG C ~ 400 DEG C dryings 3 hours, join in bariumchloride and mix, blending ratio is bariumchloride is 7:3 than sodium-chlor, is warming up to 800 DEG C ~ 850 DEG C, makes it be full of pending blade surrounding, keeps 5 hours; By ammonia through purification, be heated to 550 DEG C ~ 650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in a mixer, and make temperature remain 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 slower speeds full of blade surrounding, after 3 hours, cooling, when temperature is down to 350 DEG C ~ 400 DEG C, stop ammonia passing into, continue to be cooled to blade cooling; By within the scope of blade fast cooling to 250 DEG C ~ 320 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour, then air cooling is down to room temperature.
Further, blade material is bearing steel or 60Si2Mn spring steel.
Further, blade cutting edge thickness≤0.5mm, hardness is HRC50 ~ 55.
Last it is noted that the foregoing is only explanation embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a thermal treatment process for For Rotary Tiller Blade, comprises the following steps, and it is characterized in that, technical grade bariumchloride is heated to 850 DEG C ~ 900 DEG C and melts; By technical grade sodium-chlor 350 DEG C ~ 400 DEG C dryings 3 hours, join in bariumchloride and mix, blending ratio is bariumchloride is 7:3 than sodium-chlor, is warming up to 800 DEG C ~ 850 DEG C, makes it be full of pending blade surrounding, keeps 5 hours; By ammonia through purification, be heated to 550 DEG C ~ 650 DEG C by helical pipe, ammonia, through adding heat evolution nitrogen Gao Zi, adds Sulfothiorine in a mixer, and make temperature remain 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 slower speeds full of blade surrounding, after 3 hours, cooling, when temperature is down to 350 DEG C ~ 400 DEG C, stop ammonia passing into, continue to be cooled to blade cooling; By within the scope of blade fast cooling to 250 DEG C ~ 320 DEG C, be evacuated to vacuum, carry out means of isothermal quenching, be incubated 1 hour, then air cooling is down to room temperature.
2. the thermal treatment process of a kind of For Rotary Tiller Blade as claimed in claim 1, it is characterized in that, blade material is bearing steel or 60Si2Mn spring steel.
3. the thermal treatment process of a kind of For Rotary Tiller Blade as claimed in claim 1, it is characterized in that, blade cutting edge thickness≤0.5mm, hardness is HRC50 ~ 55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN103131838A (en) * | 2013-03-20 | 2013-06-05 | 沈阳飞机工业（集团）有限公司 | Welding thermal treatment process for welding hard alloy blade tool |
| CN103834785A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | Heat treatment method of blade of rotary cultivator |
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| CN103834785A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | Heat treatment method of blade of rotary cultivator |
| CN103131838A (en) * | 2013-03-20 | 2013-06-05 | 沈阳飞机工业（集团）有限公司 | Welding thermal treatment process for welding hard alloy blade tool |
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