CN108788022A - A kind of roller surface heat treatment process - Google Patents

A kind of roller surface heat treatment process Download PDF

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Publication number
CN108788022A
CN108788022A CN201810556271.3A CN201810556271A CN108788022A CN 108788022 A CN108788022 A CN 108788022A CN 201810556271 A CN201810556271 A CN 201810556271A CN 108788022 A CN108788022 A CN 108788022A
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CN
China
Prior art keywords
roller
roll
heat treatment
cooling
temperature
Prior art date
Application number
CN201810556271.3A
Other languages
Chinese (zh)
Inventor
王文其
Original Assignee
太仓市钧胜轧辊有限公司
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.)
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Application filed by 太仓市钧胜轧辊有限公司 filed Critical 太仓市钧胜轧辊有限公司
Priority to CN201810556271.3A priority Critical patent/CN108788022A/en
Publication of CN108788022A publication Critical patent/CN108788022A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe

Abstract

The invention discloses a kind of roller surface process of thermal treatment, the roll body and the high temperature resistant iron alloy layer for being plated on roll body surface, the roller surface, which is heat-treated, includes successively：Preheating, fusion, cooling, quenching treatment, drying forming, specially：By in stove by temperature modulation at 45-55 DEG C, heat treatment 10-15min is carried out to roller surface, then takes out cooling；Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil again, 900-960 DEG C is heated in high temperature furnace, is smelted into molten metal；Pouring metal melt is taken out in die box, is cooled and shaped；The roll of cooling and shaping is carried out again to melt down quenching, quenched roll taking-up spreads last layer nutrient solution, is placed in drying oven and dried, until molding.By the above-mentioned means, the hardness after the Surface heat-treatent of the invention that can enhance roll, not easy to break, the quality of roll can be greatly improved.

Description

A kind of roller surface heat treatment process

Technical field

The present invention relates to a kind for the treatment of process, more particularly to a kind of roller surface heat treatment process.

Background technology

The kind and manufacturing process of roll are continued to develop with the progress of metallurgical technology and the differentiation of steel rolling equipment.Middle Ages Use intensity low gray cast iron roll when rolling soft non-ferrous metal.The mid-eighteenth century Britain has grasped the chill of rolled plate The production technology of grain roll.The steel ingot of the advances calls rolling more large-tonnage of the second half in 19th century Europe steel-smelting technology, no matter It is that the intensity of gray cast iron or chilled cast iron roll has been unable to meet requirement.Early in the twentieth century alloying element using and is heat-treated Cast steel roll, being added in the grain roll of hot rolled strip after molybdenum improves the surface quality of stocking.But obdurability is low, wear-resisting Property is poor, still cannot be satisfied work roll cooling demand.

Invention content

The invention mainly solves the technical problem of providing a kind of roller surface heat treatment process, can enhance the table of roll Hardness after the heat treatment of face, it is not easy to break, the quality of roll can be greatly improved.

In order to solve the above technical problems, one aspect of the present invention is：A kind of roller surface heat treatment is provided Technique, the roll body and the high temperature resistant iron alloy layer for being plated on roll body surface, roller surface heat treatment packet Include following steps：

（1）, preheating：By in stove by temperature modulation at 45-55 DEG C, heat treatment 10-15min is carried out to roller surface, is then taken Go out cooling.

（2）, fusion：Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil, 900-960 DEG C is heated in high temperature furnace, is melted It is smelt molten metal.

（3）, it is cooling：Pouring metal melt is taken out in die box, is cooled and shaped.

（4）, quenching treatment：The roll of cooling and shaping is carried out again to melt down quenching, hardening heat is 350-400 DEG C, the time It is maintained at 40-60min.

（5）, drying forming：Last layer nutrient solution is spread in quenched roll taking-up, is placed in drying oven and is dried, until Molding obtains roller surface heat treatment.

In a preferred embodiment of the present invention, in the ferroalloy, it is 75-85%, the matter of titanium that the quality of iron, which accounts for percentage, It is 15-25% that amount, which accounts for percentage,.

In a preferred embodiment of the present invention, it is 60-70% that the roller surface, which sprays one layer of molybdenum powder to account for mass percent, yellow Wax oil accounts for mass percent 30-40%.

In a preferred embodiment of the present invention, the temperature that the molten metal is cooled and shaped is at 15-18 DEG C.

In a preferred embodiment of the present invention, the content main component of the nutrient solution and its mass percent packet is accounted for It includes：Magnesium sulfate 20%, zinc carbonate 25%, sodium sulphate 13%, calcium nitrate 10%, remaining is water.

The beneficial effects of the invention are as follows：A kind of roller surface heat treatment process of the present invention adds in quenching

Heating, drying is carried out again plus nutrient solution on surface after heat, can effectively handle the thermal effectiveness of roller surface, The hardness after the Surface heat-treatent of roll can be enhanced, it is not easy to break, the quality of roll can be greatly improved.

Specific implementation mode

The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.

The embodiment of the present invention includes：

Embodiment 1：

A kind of roller surface heat treatment process, the roll body and the high temperature resistant iron alloy layer for being plated on roll body surface, The roller surface heat treatment includes the following steps：

（1）, preheating：By in stove by temperature modulation at 45 DEG C, heat treatment 10min is carried out to roller surface, then takes out cooling；

（2）, fusion：Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil, 900 DEG C are heated in high temperature furnace, molybdenum powder accounts for quality Percentage is 60%, and yellow wax oil accounts for mass percent 30%.It is smelted into molten metal；

（3）, it is cooling：Pouring metal melt is taken out in die box, the temperature that the molten metal is cooled and shaped is at 15 DEG C.It is cooled to Type；

（4）, quenching treatment：The roll of cooling and shaping is carried out again to melt down quenching, hardening heat is 350 DEG C, and the time is maintained at 40min；

（5）, drying forming：Last layer nutrient solution is spread in the taking-up of quenched roll, the content main component of the nutrient solution and its Accounting for mass percent includes：Magnesium sulfate 20%, zinc carbonate 25%, sodium sulphate 13%, calcium nitrate 10%, remaining is water, is placed on drying oven It is inside dried, until molding, obtains roller surface heat treatment.

Wherein, in the ferroalloy, it is 75% that the quality of iron, which accounts for percentage, and it is 15% that the quality of titanium, which accounts for percentage,.

Embodiment 2：

A kind of roller surface heat treatment process, the roll body and the high temperature resistant iron alloy layer for being plated on roll body surface, The roller surface heat treatment includes the following steps：

（1）, preheating：By in stove by temperature modulation at 55 DEG C, heat treatment 15min is carried out to roller surface, then takes out cooling；

（2）, fusion：Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil, 900 DEG C are heated in high temperature furnace, molybdenum powder accounts for quality Percentage is 7%, and yellow wax oil accounts for mass percent 40%.It is smelted into molten metal；

（3）, it is cooling：Pouring metal melt is taken out in die box, the temperature that the molten metal is cooled and shaped is at 18 DEG C.It is cooled to Type；

（4）, quenching treatment：The roll of cooling and shaping is carried out again to melt down quenching, hardening heat is 400 DEG C, and the time is maintained at 60min；

（5）, drying forming：Last layer nutrient solution is spread in the taking-up of quenched roll, the content main component of the nutrient solution and its Accounting for mass percent includes：Magnesium sulfate 20%, zinc carbonate 25%, sodium sulphate 13%, calcium nitrate 10%, remaining is water, is placed on drying oven It is inside dried, until molding, obtains roller surface heat treatment；

Wherein, in the ferroalloy, it is 85% that the quality of iron, which accounts for percentage, and it is 25% that the quality of titanium, which accounts for percentage,.

Embodiment 3：

A kind of roller surface heat treatment process, the roll body and the high temperature resistant iron alloy layer for being plated on roll body surface, The roller surface heat treatment includes the following steps：

（1）, preheating：By in stove by temperature modulation at 50 DEG C, heat treatment 12min is carried out to roller surface, then takes out cooling；

（2）, fusion：Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil, 900 DEG C are heated in high temperature furnace, molybdenum powder accounts for quality Percentage is 65%, and yellow wax oil accounts for mass percent 35%.It is smelted into molten metal；

（3）, it is cooling：Pouring metal melt is taken out in die box, the temperature that the molten metal is cooled and shaped is at 16 DEG C.It is cooled to Type；

（4）, quenching treatment：The roll of cooling and shaping is carried out again to melt down quenching, hardening heat is 370 DEG C, and the time is maintained at 50min；

（5）, drying forming：Last layer nutrient solution is spread in the taking-up of quenched roll, the content main component of the nutrient solution and its Accounting for mass percent includes：Magnesium sulfate 20%, zinc carbonate 25%, sodium sulphate 13%, calcium nitrate 10%, remaining is water, is placed on drying oven It is inside dried, until molding, obtains roller surface heat treatment.

Wherein, in the ferroalloy, it is 80% that the quality of iron, which accounts for percentage, and it is 20% that the quality of titanium, which accounts for percentage,.

It is different from the prior art, a kind of roller surface heat treatment process of the present invention, on surface plus battalion after Quench heating Nutrient solution carries out heating, drying again, can effectively handle the thermal effectiveness of roller surface, can enhance the surface heat of roll Hardness that treated, it is not easy to break, the quality of roll can be greatly improved.

Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks Domain is included within the scope of the present invention.

Claims (5)

1. a kind of roller surface heat treatment process, which is characterized in that the roll body and be plated on the resistance to of roll body surface High temperature iron alloy layer, roller surface heat treatment include the following steps：
（1）, preheating：By in stove by temperature modulation at 45-55 DEG C, heat treatment 10-15min is carried out to roller surface, is then taken Go out cooling；
（2）, fusion：Roller surface is sprayed into one layer of molybdenum powder and yellow wax oil, 900-960 DEG C is heated in high temperature furnace, is smelted into Molten metal；
（3）, it is cooling：Pouring metal melt is taken out in die box, is cooled and shaped；
（4）, quenching treatment：The roll of cooling and shaping is carried out again to melt down quenching, hardening heat is 350-400 DEG C, and the time keeps In 40-60min；
（5）, drying forming：Last layer nutrient solution is spread in quenched roll taking-up, is placed in drying oven and is dried, Zhi Daocheng Type obtains roller surface heat treatment.
2. roller surface heat treatment process according to claim 1, which is characterized in that in the ferroalloy, the quality of iron It is 75-85% to account for percentage, and it is 15-25% that the quality of titanium, which accounts for percentage,.
3. roller surface heat treatment process according to claim 1, which is characterized in that the roller surface sprays one layer of molybdenum It is 60-70% that powder, which accounts for mass percent, and yellow wax oil accounts for mass percent 30-40%.
4. roller surface heat treatment process according to claim 1, which is characterized in that the temperature that the molten metal is cooled and shaped Degree is at 15-18 DEG C.
5. roller surface heat treatment process according to claim 1, which is characterized in that the content of the nutrient solution mainly at Divide and its account for mass percent and includes：Magnesium sulfate 20%, zinc carbonate 25%, sodium sulphate 13%, calcium nitrate 10%, remaining is water.
CN201810556271.3A 2018-06-01 2018-06-01 A kind of roller surface heat treatment process CN108788022A (en)

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Application Number Priority Date Filing Date Title
CN201810556271.3A CN108788022A (en) 2018-06-01 2018-06-01 A kind of roller surface heat treatment process

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110172548A (en) * 2019-05-28 2019-08-27 鑫光热处理工业(昆山)有限公司 A kind of automatic steel parts surface heat treatment process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1106466A (en) * 1994-02-01 1995-08-09 北京科技大学 Prodn. technique of compound wear resistant double-rolle roller rim
CN1803325A (en) * 2005-09-13 2006-07-19 安泰科技股份有限公司 High speed steel composite roll and its preparing method
CN101240402A (en) * 2008-02-04 2008-08-13 向勇 Cast high-boron high-speed steel for composite ring roller and heat treatment method thereof
CN107164694A (en) * 2017-06-19 2017-09-15 太仓市钧胜轧辊有限公司 A kind of processing technology of high abrasion roll
CN107354284A (en) * 2017-06-29 2017-11-17 太仓市钧胜轧辊有限公司 A kind of Technology for Heating Processing for roll

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1106466A (en) * 1994-02-01 1995-08-09 北京科技大学 Prodn. technique of compound wear resistant double-rolle roller rim
CN1803325A (en) * 2005-09-13 2006-07-19 安泰科技股份有限公司 High speed steel composite roll and its preparing method
CN101240402A (en) * 2008-02-04 2008-08-13 向勇 Cast high-boron high-speed steel for composite ring roller and heat treatment method thereof
CN107164694A (en) * 2017-06-19 2017-09-15 太仓市钧胜轧辊有限公司 A kind of processing technology of high abrasion roll
CN107354284A (en) * 2017-06-29 2017-11-17 太仓市钧胜轧辊有限公司 A kind of Technology for Heating Processing for roll

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110172548A (en) * 2019-05-28 2019-08-27 鑫光热处理工业(昆山)有限公司 A kind of automatic steel parts surface heat treatment process

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Application publication date: 20181113