CN104805454A - Heat treatment process for blade of rotary cultivator - Google Patents

Heat treatment process for blade of rotary cultivator Download PDF

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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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CN
China
Prior art keywords
blade
temperature
hours
cooling
grade
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
Application number
CN201510215763.2A
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Chinese (zh)
Inventor
潘承民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd
Original Assignee
Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd filed Critical Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd
Priority to CN201510215763.2A priority Critical patent/CN104805454A/en
Publication of CN104805454A publication Critical patent/CN104805454A/en
Pending legal-status Critical Current

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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

A kind of thermal treatment process of For Rotary Tiller Blade
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.
CN201510215763.2A 2015-04-30 2015-04-30 Heat treatment process for blade of rotary cultivator Pending CN104805454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510215763.2A CN104805454A (en) 2015-04-30 2015-04-30 Heat treatment process for blade of rotary cultivator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510215763.2A CN104805454A (en) 2015-04-30 2015-04-30 Heat treatment process for blade of rotary cultivator

Publications (1)

Publication Number Publication Date
CN104805454A true CN104805454A (en) 2015-07-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510215763.2A Pending CN104805454A (en) 2015-04-30 2015-04-30 Heat treatment process for blade of rotary cultivator

Country Status (1)

Country Link
CN (1) CN104805454A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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Application publication date: 20150729