CN102071394A - Process method for metal surface boronisation - Google Patents
Process method for metal surface boronisation Download PDFInfo
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- CN102071394A CN102071394A CN200910223943XA CN200910223943A CN102071394A CN 102071394 A CN102071394 A CN 102071394A CN 200910223943X A CN200910223943X A CN 200910223943XA CN 200910223943 A CN200910223943 A CN 200910223943A CN 102071394 A CN102071394 A CN 102071394A
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- boronisation
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Abstract
The invention discloses a process method for metal surface boronisation. The process conditions of the process method include: (1) the boronisation temperature is 800 to 950 DEG C; (2) the temperature preservation time is 3 to 5 hours; and (3) usually, the preferred dosage of penetrating agent is designed to fully fill a penetration tank. The process flow of the process method comprises: removing oil from workpieces with gasoline or alcohol, drying the workpieces in the air, spreading 5-millimeter-thick penetrating agent at the bottom of the penetration tank, placing the workpieces vertically to reduce bending deflection, filling the penetrating agent till the penetration tank is full, and sealing the penetrating tank with sodium silicate-blended clay; discharging from a furnace, or cooling with the furnace till room temperature, opening the tank, and directly quenching. The process method is advanced across the world. For example, the service life of the boronized cutter pressing plate of a splitting machine is 6 times higher than that of a nitrogenized cutter pressing plate and 1 time higher than that of hard alloy-coated cutter pressing plate. After boronisation, the service life of baking-free brick molds, river sand brick molds and refractory brick molds is 3 times higher than that of carburized molds. When the process method is used for parts such as pump pipes of oil pumps of oil machines, connectors and centralizers, the wear resistance, corrosion resistance and service life of the parts are improved greatly.
Description
Technical field
The present invention relates to the processing method of a kind of metallic surface boronising.
Background technology
The ordinary steel iron material is because surface hardness is low, and in use very quick-wearing lost efficacy, the waste great deal of steel, and need often change frock, during charge for loss of working time.Boronising can increase substantially steel surface hardness, and considerably beyond the hardness of upper layers such as carburizing, nitrogenize, chromium plating, boride layer also has very high erosion resistance, can make workpiece improve several times even tens times work-ing life, has very high economic benefit.Boronising equipment is simple, easy to operate, is easy to grasp, and is with low cost.
Summary of the invention
The processing method that the purpose of this invention is to provide the boronising of a kind of metallic surface solves the low problem of steel surface hardness after the common boronizing agent boronising.
The objective of the invention is to be achieved through the following technical solutions:
Adopting ferro-boron (Fe-B) is boron supplying agent; Potassium fluoborate (KBF4) and ammonium hydrogencarbonate (NH4HCO3) are energizer, and technical pure aluminum oxide (AI2O3) is a weighting agent.It is fast that this penetration enhancer has boronising speed, and the borided layer tissue is monophasic Fe2B or (Fe, M) 2B substantially, and borided layer hardness can reach HV1600-2100, and boronising part cleaning surfaces need not clean with penetration enhancer characteristics such as nontoxic, reusable.Its processing method is:
(1) boronising temperature: 800 ℃-950 ℃ (Heating temperature is decided by processing requirement).
(2) soaking time: 3-5 hour, be generally 850 ℃ of insulations hour (soaking time does not comprise the ginseng diathermanous time of case).The diathermanous time of oozing case and workpiece should be looked its volume size and be decided.
(3) penetration enhancer consumption: generally ooze case and be advisable to fill up.
(4) operating process: workpiece dries after deoiling with gasoline or alcohol.Oozing the penetration enhancer that 5 mm thick are spread in case bottom, vertical place work piece to reduce flexural deformation, fills up penetration enhancer (non-working surface can be filled with old penetration enhancer, to reduce the penetration enhancer consumption), then with water glass accent clay joint sealing.Come out of the stove or be chilled to room temperature with stove and unpack, the direct quenching of unpacking after the boronising also can.
(5) penetration enhancer is reusable, generally uses the new penetration enhancer 50% of old penetration enhancer 50%+.
(6) quality inspection: after tripotassium reagent and the corrosion of nitric acid alcohol liquation, check borided layer thickness and hardness.
Can reach domestic and international advanced level.As the boronising knife clip of sheeting machine, improve 6 times than nitrogenize knife clip work-ing life, improves 1 times than coated with hard alloy.Non-burning brick mould, river sanded brick mould, refractory brick mould boronising, improve three times or more than carburizing mould work-ing life.Be used for accessories such as petroleum machinery oil well pump pump line, box cupling, centralizer, wear-resistant, corrosion-resistant, significantly improve work-ing life.The Q235 billet just must change, and can use more than half a year after the boronising under abrasive wear in 15 days.Remarkable in economical benefits.
1. nitrided layer hardness height: HV1500-2000 is equivalent to HRC85.2. boronising speed is fast: 45 steel can reach the 120-130 micron at 4 hours alloying layer thicknesses of 900 ℃ of insulations.3. loose density is light: 0.5 kilogram/liter, compare with boronizing agent in the past, and can save the about 50-80% of boronizing agent.4. boronizing agent is a particulate state, and is loose non-caked after oozing, and easily takes out workpiece.5. adding the new boronizing agent of part can use repeatedly.6. cheap.
Embodiment
The processing method of the embodiment of the invention described metallic surface boronising, adopting ferro-boron (Fe-B) is boron supplying agent; Potassium fluoborate (KBF
4) and ammonium hydrogencarbonate (NH
4HCO
3) be energizer, technical pure aluminum oxide (AI
2O
3) be weighting agent.
It is fast that this penetration enhancer has boronising speed, and the borided layer tissue is monophasic Fe substantially
2B or (Fe, M)
2B, borided layer hardness can reach HV1600-2100, and boronising part cleaning surfaces need not clean with penetration enhancer characteristics such as nontoxic, reusable.Concrete processing step is as follows:
(1) boronising temperature: 800 ℃-950 ℃ (Heating temperature is decided by processing requirement).
(2) soaking time: 3-5 hour, be generally 850 ℃ of insulations hour (soaking time does not comprise the ginseng diathermanous time of case).The diathermanous time of oozing case and workpiece should be looked its volume size and be decided.
(3) penetration enhancer consumption: generally ooze case and be advisable to fill up.
(4) operating process: workpiece dries after deoiling with gasoline or alcohol.Oozing the penetration enhancer that 5 mm thick are spread in case bottom, vertical place work piece to reduce flexural deformation, fills up penetration enhancer (non-working surface can be filled with old penetration enhancer, to reduce the penetration enhancer consumption), then with water glass accent clay joint sealing.Come out of the stove or be chilled to room temperature with stove and unpack, the direct quenching of unpacking after the boronising also can.
(5) penetration enhancer is reusable, generally uses the new penetration enhancer 50% of old penetration enhancer 50%+.
(6) quality inspection: after tripotassium reagent and the corrosion of nitric acid alcohol liquation, check borided layer thickness and hardness.
Can reach domestic and international advanced level.As the boronising knife clip of sheeting machine, improve 6 times than nitrogenize knife clip work-ing life, improves 1 times than coated with hard alloy.Non-burning brick mould, river sanded brick mould, refractory brick mould boronising, improve three times or more than carburizing mould work-ing life.Be used for accessories such as petroleum machinery oil well pump pump line, box cupling, centralizer, wear-resistant, corrosion-resistant, significantly improve work-ing life.The Q235 billet just must change, and can use more than half a year after the boronising under abrasive wear in 15 days.Remarkable in economical benefits.
1. nitrided layer hardness height: HV1500-2000 is equivalent to HRC85.2. boronising speed is fast: 45 steel can reach the 120-130 micron at 4 hours alloying layer thicknesses of 900 ℃ of insulations.3. loose density is light: 0.5 kilogram/liter, compare with boronizing agent in the past, and can save the about 50-80% of boronizing agent.4. boronizing agent is a particulate state, and is loose non-caked after oozing, and easily takes out workpiece.5. adding the new boronizing agent of part can use repeatedly.6. cheap.
Claims (3)
1. the processing method of a boronizing agent comprises processing condition:
(1) boronising temperature: 800 ℃-950 ℃;
(2) soaking time: 3-5 hour;
(3) penetration enhancer consumption: generally ooze case and be advisable to fill up;
Its technical process is: workpiece dries after deoiling with gasoline or alcohol, is oozing the penetration enhancer that 5 mm thick are spread in case bottom, and vertical place work piece to reduce flexural deformation, fills up penetration enhancer then, transfers the clay joint sealing with water glass.
2. the processing method of boronizing agent according to claim 1 is characterized in that, processing condition are the boronising temperature: 850 ℃, soaking time: 4 hours.
3. the processing method of boronizing agent according to claim 1 is characterized in that, comes out of the stove or is chilled to room temperature with stove and unpack the direct quenching of unpacking after the boronising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223943XA CN102071394A (en) | 2009-11-20 | 2009-11-20 | Process method for metal surface boronisation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223943XA CN102071394A (en) | 2009-11-20 | 2009-11-20 | Process method for metal surface boronisation |
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| Publication Number | Publication Date |
|---|---|
| CN102071394A true CN102071394A (en) | 2011-05-25 |
Family
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|---|---|---|---|
| CN200910223943XA Pending CN102071394A (en) | 2009-11-20 | 2009-11-20 | Process method for metal surface boronisation |
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| CN (1) | CN102071394A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861677A (en) * | 2012-09-21 | 2013-01-09 | 江苏亿鑫离心机制造有限公司 | High-intensity wear-resistant and corrosion-resistant spiral discharging sedimentation centrifuge and manufacturing process therefore |
| CN103668039A (en) * | 2013-12-31 | 2014-03-26 | 山东万达重工股份有限公司 | Heat treatment process for manufacturing baking-free brick molding box |
| CN105088132A (en) * | 2015-09-25 | 2015-11-25 | 辽宁工业大学 | Surface treatment method for solid carbon-boron complex penetration of low-carbon alloy steel part |
| CN107723654A (en) * | 2017-08-18 | 2018-02-23 | 中北大学 | The renovation process and its device of a kind of granular boronizing agent |
| CN112538602A (en) * | 2020-11-19 | 2021-03-23 | 武汉力盾新材料科技有限公司 | Surface treatment process for high-nickel cast iron workpiece |
| CN114086110A (en) * | 2022-01-07 | 2022-02-25 | 矿冶科技集团有限公司 | Method for solidifying and permeating alloy workpiece dynamically sealed in atmospheric atmosphere and alloy workpiece |
| CN114774841A (en) * | 2022-06-22 | 2022-07-22 | 山东一立动力科技股份有限公司 | Hard alloy surface boronizing treatment method |
| CN114836711A (en) * | 2022-05-10 | 2022-08-02 | 长沙特耐金属材料科技有限公司 | Metal surface hardening method |
-
2009
- 2009-11-20 CN CN200910223943XA patent/CN102071394A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861677A (en) * | 2012-09-21 | 2013-01-09 | 江苏亿鑫离心机制造有限公司 | High-intensity wear-resistant and corrosion-resistant spiral discharging sedimentation centrifuge and manufacturing process therefore |
| CN103668039A (en) * | 2013-12-31 | 2014-03-26 | 山东万达重工股份有限公司 | Heat treatment process for manufacturing baking-free brick molding box |
| CN103668039B (en) * | 2013-12-31 | 2015-09-16 | 山东万达重工股份有限公司 | A kind of thermal treatment process for making non-burning brick moulding box |
| CN105088132A (en) * | 2015-09-25 | 2015-11-25 | 辽宁工业大学 | Surface treatment method for solid carbon-boron complex penetration of low-carbon alloy steel part |
| CN107723654A (en) * | 2017-08-18 | 2018-02-23 | 中北大学 | The renovation process and its device of a kind of granular boronizing agent |
| CN112538602A (en) * | 2020-11-19 | 2021-03-23 | 武汉力盾新材料科技有限公司 | Surface treatment process for high-nickel cast iron workpiece |
| CN114086110A (en) * | 2022-01-07 | 2022-02-25 | 矿冶科技集团有限公司 | Method for solidifying and permeating alloy workpiece dynamically sealed in atmospheric atmosphere and alloy workpiece |
| CN114086110B (en) * | 2022-01-07 | 2022-04-08 | 矿冶科技集团有限公司 | Method for solidifying and permeating alloy workpiece dynamically sealed in atmospheric atmosphere and alloy workpiece |
| CN114836711A (en) * | 2022-05-10 | 2022-08-02 | 长沙特耐金属材料科技有限公司 | Metal surface hardening method |
| CN114774841A (en) * | 2022-06-22 | 2022-07-22 | 山东一立动力科技股份有限公司 | Hard alloy surface boronizing treatment method |
| CN114774841B (en) * | 2022-06-22 | 2022-08-30 | 山东一立动力科技股份有限公司 | Hard alloy surface boronizing treatment method |
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Application publication date: 20110525 |