CN102071395A - Lightweight rapid granular boriding medium - Google Patents
Lightweight rapid granular boriding medium Download PDFInfo
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- CN102071395A CN102071395A CN2009102239406A CN200910223940A CN102071395A CN 102071395 A CN102071395 A CN 102071395A CN 2009102239406 A CN2009102239406 A CN 2009102239406A CN 200910223940 A CN200910223940 A CN 200910223940A CN 102071395 A CN102071395 A CN 102071395A
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- borided
- boriding
- boriding medium
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Abstract
The invention discloses a lightweight rapid granular boriding medium, which adopts ferroboron (Fe-B) as a source of boron, potassium fluoborate (KBF4) and ammonia bicarbonate (NH4HCO3) as energizers, and industrial pure aluminum oxide (Al2O3) as a filler. The boriding medium has the characteristics of high boriding speed, the borided layer structure of substantially single-phase Fe2B or (Fe/M)2B, the hardness of the borided layer of HV1,600 to 2,100, clean borided part surface, no need of washing and boriding medium sterilization, reusability and the like. The boriding medium can reach an advanced level both at home and abroad. For example, a borided knife clip of a splitting machine has the service life which is seven times that of a nitrided knife clip and twice that of a knife clip sprayed with a hard alloy; a baking-free brick mould, a sand brick mould and a refractory brick mould are borided to achieve the service life which is over fourth times that of a carburized mould; fittings, such as oil well pump pipes, couplings, centering devices and the like, of petroleum machinery use the boriding medium so as to achieve resistance to wear and corrosion and greatly prolonged service life; and after being borided, Q235 steel base plates required to be disassembled and replaced after 15 days under the abrasion of a grinding material can be used for more than half a year so as to achieve remarkable economic benefits.
Description
Technical field
The present invention relates to a kind of boronizing agent.
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 purpose of this invention is to provide the quick granular boronizing agent of a kind of lightweight, solve 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:
The quick granular boronizing agent of a kind of lightweight, 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.The proportioning of described boron supplying agent, energizer, weighting agent is 1: 1: 1.The proportioning of potassium fluoborate and ammonium hydrogencarbonate is 1: 1.
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.
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 quick granular boronizing agent of the described a kind of lightweight of the embodiment of the invention, 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.The proportioning of described boron supplying agent, energizer, weighting agent is 1: 1: 1.The proportioning of potassium fluoborate and ammonium hydrogencarbonate is 1: 1.
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.
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 compared with boronizing agent in the past for light 0.5 kilogram/liter, 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 quick granular boronizing agent of lightweight is characterized in that, 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.
2. the quick granular boronizing agent of lightweight according to claim 1 is characterized in that the proportioning of described boron supplying agent, energizer, weighting agent is 1: 1: 1.
3. the quick granular boronizing agent of lightweight according to claim 2 is characterized in that the proportioning of potassium fluoborate and ammonium hydrogencarbonate is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102239406A CN102071395A (en) | 2009-11-20 | 2009-11-20 | Lightweight rapid granular boriding medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102239406A CN102071395A (en) | 2009-11-20 | 2009-11-20 | Lightweight rapid granular boriding medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102071395A true CN102071395A (en) | 2011-05-25 |
Family
ID=44030148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102239406A Pending CN102071395A (en) | 2009-11-20 | 2009-11-20 | Lightweight rapid granular boriding medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071395A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343314A (en) * | 2013-07-06 | 2013-10-09 | 许斌 | Novel low-temperature rare earth-chromium-boronizing agent |
| 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 |
| CN113025949A (en) * | 2021-02-26 | 2021-06-25 | 海信视像科技股份有限公司 | Boron-sulfur co-permeation reagent, boron-sulfur chemical permeation method, boron-sulfur co-permeation metal workpiece and application |
-
2009
- 2009-11-20 CN CN2009102239406A patent/CN102071395A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343314A (en) * | 2013-07-06 | 2013-10-09 | 许斌 | Novel low-temperature rare earth-chromium-boronizing agent |
| CN103343314B (en) * | 2013-07-06 | 2015-04-15 | 山东建筑大学 | Novel low-temperature rare earth-chromium-boronizing agent |
| 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 |
| CN113025949A (en) * | 2021-02-26 | 2021-06-25 | 海信视像科技股份有限公司 | Boron-sulfur co-permeation reagent, boron-sulfur chemical permeation method, boron-sulfur co-permeation metal workpiece and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |