CN103045816A - Quenching and bluing solution and using method thereof - Google Patents
Quenching and bluing solution and using method thereof Download PDFInfo
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- CN103045816A CN103045816A CN2012105327792A CN201210532779A CN103045816A CN 103045816 A CN103045816 A CN 103045816A CN 2012105327792 A CN2012105327792 A CN 2012105327792A CN 201210532779 A CN201210532779 A CN 201210532779A CN 103045816 A CN103045816 A CN 103045816A
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Abstract
The invention relates to a quenching and bluing solution and a using method thereof. The quenching and bluing solution is characterized by being prepared from the following raw materials in percentage by weight: 5% of sodium hydroxide, 20% of sodium nitrate, 15% of sodium nitrite, 15% of potassium nitrate and 45% of water. The quenching and bluing solution disclosed by the invention can combine processes of quenching and bluing into one process in one step, thereby increasing the production efficiency, saving labor and material resources and reducing the cost; and the quenching and bluing solution disclosed by the invention is very economical and practical, achieves greatly high popularization and application value and can be widely applied to the quenching and bluing of workpieces, such as carbon steel and low-carbon low-alloy steel product parts which need the quenching and the bluing.
Description
Technical field
The present invention relates to two kinds of different technical fields of thermal treatment and surface treatment, particularly a kind of quenching bluing liquid and using method thereof.
Background technology
Quenching is a kind of important thermal treatment process, it is that steel part is heated to the austenite warm area, make it all or part of austenitizing, then be as cold as martensite fast with the cooling rate greater than critical cooling velocity or bainite transformation taps, thereby obtain the high martensite of hardness or a kind of heat-treatment technology method of bainite.For some plain carbon stools and low-carbon low-alloy steel; be anti-oxidation decarburizing; general salt bath furnace, special atmosphere oven or the vacuum oven of adopting of the heating of quenching heats, and cooling generally is the workpiece of heating to be put into salt, alkali aqueous solution or oil and other organic quenchant aqueous solution cools off.Quenching can significantly improve matrix strength, hardness and the wear resistance of steel part.Turn blue and claim oxide treatment, it is that steel part is heated to proper temperature, makes its surface form one deck take Z 250 as main blueness or the technique of black oxide film in air-steam or chemical liquid.What generally adopt in the production is the alkali electroless oxidation style, and the technical process of the method is: and Solvent degreasing → electrochemical deoiling → hot water wash → flowing cool water washes → pickling (technical hydrochloric acid) → flowing cool water washes → turn blue → embathe → and flowing cool water washes → saponification liquor passivation → hot water cleaning → drying → check → immersion oil.Turn blue and to improve the solidity to corrosion of steel piece surface, make it be difficult for getting rusty.
Some techniques that not only needed the product parts that quenches but also need to turn blue, technology in the past all to adopt to quench first two steps of turning blue afterwards to walk are finished.Obviously, adopt the technique of turning blue again after this quenching, exist the shortcoming that operation is many, the complete processing time is long, cost is high.
Summary of the invention
The objective of the invention is to quench and the above-mentioned shortcoming of technology of turning blue for overcoming to have now, and provide a kind of processing that to finish with the twice technique of turning blue that needs to quench to be merged into quenching bluing liquid and the using method thereof of technique with regard to finishing.
For achieving the above object, the present invention takes following technical proposals:
Quenching bluing liquid of the present invention and using method thereof is characterized in that: the quenching bluing liquid is formulated according to following weight per-cent by feed hydrogen sodium oxide, SODIUMNITRATE, Sodium Nitrite, saltpetre and water:
Sodium hydroxide: 5%; SODIUMNITRATE: 20%; Sodium Nitrite: 15%; Saltpetre: 15%; Water: 45%.
Put into quenching tank after above-mentioned raw materials beyond will dewatering first takes by weighing by its weight percent, pour into the water that takes by weighing by weight percentage again, then constantly stirring is fully dissolved solid material, thereby makes operable quenching bluing liquid.
The concrete using method of this quenching bluing liquid is: the workpiece that will not only need first to quench but also need to turn blue enters non-oxidation light heating in salt bath furnace, special atmosphere oven or the vacuum oven; then taking-up is put into rapidly the quenching bluing liquid and is quenched; namely obtain required quenching hardness and finish immediately the workpiece that turns blue, making quenches merges into the twice technique of turning blue that technique is disposable to be finished.
Be the protection stability of the layer of guaranteeing to turn blue, also to through after workpiece takes out from the quenching bluing liquid embathing → flowing cool water washes → technical process of saponification liquor passivation → hot water cleaning → drying → check → immersion oil.Obviously, this technical process saved Solvent degreasing → electrochemical deoiling → hot water wash → flowing cool water than the technical process of turning blue separately again after quenching and washed → and pickling (technical hydrochloric acid) → flowing cool water washes → turns blue seven procedures, not only improved production efficiency, manpower and materials have also been saved, saved cost, economical and practical, have high application value.This quenching bluing liquid also has the advantage that relaxes the speed of cooling that both can keep higher, quenching stress that unlikely formation is too large in the supercooled austenite cooling power of decomposing warm area (being equivalent to CCT curve nose place) thereby cooling power is strong near martensite point the time, the quenching that can be widely used in carbon steel and low-carbon low-alloy steel product parts with turn blue.
Claims (1)
1. a quenching bluing liquid and using method thereof, it is characterized in that: the quenching bluing liquid is formulated according to following weight per-cent by feed hydrogen sodium oxide, SODIUMNITRATE, Sodium Nitrite, saltpetre and water:
Sodium hydroxide: 5%; SODIUMNITRATE: 20%; Sodium Nitrite: 15%; Saltpetre: 15%; Water: 45%.
The workpiece that quenches not only needing but also need to turn blue enters non-oxidation light heating in salt bath furnace, special atmosphere oven or the vacuum oven; putting into rapidly the quenching bluing liquid after the taking-up quenches; namely obtain required quenching hardness and finish immediately the workpiece that turns blue, making quenches merges into the twice technique of turning blue that technique is disposable to be finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105327792A CN103045816A (en) | 2012-12-12 | 2012-12-12 | Quenching and bluing solution and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105327792A CN103045816A (en) | 2012-12-12 | 2012-12-12 | Quenching and bluing solution and using method thereof |
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| CN103045816A true CN103045816A (en) | 2013-04-17 |
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| CN2012105327792A Pending CN103045816A (en) | 2012-12-12 | 2012-12-12 | Quenching and bluing solution and using method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946217A (en) * | 2015-06-04 | 2015-09-30 | 苏州市宝玛数控设备有限公司 | Nucleating agent for low temperature fuzzy ball working solution |
| CN105648432A (en) * | 2016-03-03 | 2016-06-08 | 上海大学 | Preparation method of blue oxide film on surface of spring steel |
| CN108165882A (en) * | 2018-01-16 | 2018-06-15 | 马鞍山市新桥工业设计有限公司 | A kind of Wear-resistant, high-temperature resistant alloy and preparation method thereof |
| CN110295362A (en) * | 2019-07-10 | 2019-10-01 | 湖南三泰新材料股份有限公司 | A kind of online alkalinity of hot-rolled reinforced bar is given a protective coating to metal objects method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147019A (en) * | 1996-06-20 | 1997-04-09 | 汤铁琴 | Bluing and low-carbon martensite heat treatment of high strength building steel bar |
| CN1508282A (en) * | 2002-09-04 | 2004-06-30 | ͬ�Ϳ�ҵ��ʽ���� | Method for producing metal member with intensified corrosion-resisting property by salt-bath nitrizing |
| CN101029389A (en) * | 2007-04-12 | 2007-09-05 | 北京中科三环高技术股份有限公司 | Surface protection of neodymium iron boron permanent-magnet material |
-
2012
- 2012-12-12 CN CN2012105327792A patent/CN103045816A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147019A (en) * | 1996-06-20 | 1997-04-09 | 汤铁琴 | Bluing and low-carbon martensite heat treatment of high strength building steel bar |
| CN1508282A (en) * | 2002-09-04 | 2004-06-30 | ͬ�Ϳ�ҵ��ʽ���� | Method for producing metal member with intensified corrosion-resisting property by salt-bath nitrizing |
| CN101029389A (en) * | 2007-04-12 | 2007-09-05 | 北京中科三环高技术股份有限公司 | Surface protection of neodymium iron boron permanent-magnet material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946217A (en) * | 2015-06-04 | 2015-09-30 | 苏州市宝玛数控设备有限公司 | Nucleating agent for low temperature fuzzy ball working solution |
| CN105648432A (en) * | 2016-03-03 | 2016-06-08 | 上海大学 | Preparation method of blue oxide film on surface of spring steel |
| CN108165882A (en) * | 2018-01-16 | 2018-06-15 | 马鞍山市新桥工业设计有限公司 | A kind of Wear-resistant, high-temperature resistant alloy and preparation method thereof |
| CN108165882B (en) * | 2018-01-16 | 2019-07-26 | 马鞍山市新桥工业设计有限公司 | A kind of Wear-resistant, high-temperature resistant alloy and preparation method thereof |
| CN110295362A (en) * | 2019-07-10 | 2019-10-01 | 湖南三泰新材料股份有限公司 | A kind of online alkalinity of hot-rolled reinforced bar is given a protective coating to metal objects method |
| CN110295362B (en) * | 2019-07-10 | 2021-05-18 | 湖南三泰新材料股份有限公司 | Online alkaline bluing method for hot-rolled steel bars |
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Application publication date: 20130417 |