CN110592335A - Calender roller heat treatment process - Google Patents
Calender roller heat treatment process Download PDFInfo
- Publication number
- CN110592335A CN110592335A CN201911005536.1A CN201911005536A CN110592335A CN 110592335 A CN110592335 A CN 110592335A CN 201911005536 A CN201911005536 A CN 201911005536A CN 110592335 A CN110592335 A CN 110592335A
- Authority
- CN
- China
- Prior art keywords
- quenching agent
- steel billet
- parts
- quenching
- protection
- 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.)
- Withdrawn
Links
Classifications
-
- 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, e.g. BY DECARBURISATION OR TEMPERING
- 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, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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, e.g. BY DECARBURISATION OR TEMPERING
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A calender roller heat treatment process adopts the following technical scheme: step 1: putting the steel billet in a box type furnace, and filling nitrogen for protection; step 2: heating to 840-880 ℃, and preserving heat for 1-2 hours; and step 3: soaking the heated steel billet into a quenching agent for quenching; and 4, step 4: putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to the temperature of 720-750 ℃, and then immersing in a quenching agent for secondary quenching; and 5: and (3) placing the secondarily quenched steel billet in a 500-530 ℃ box furnace, filling nitrogen for protection, preserving the heat for 5-8 hours, and removing the stress. The method has the beneficial effects of solving the problems of small and uneven hardness of the calender roller and crack generation on the surface of the calender roller.
Description
Technical Field
The invention belongs to the field of metal heat treatment, and particularly relates to a calender roller heat treatment process.
Background
Calender is an important equipment in the production of plastic film, and is a plastic mechanical part with wide application. The roller is used as a core component of the calender and has direct influence on the quality of the film, and the roller of the calender has uneven hardness and can not reach the standard to cause the quality problem of the film because the surface of the roller is pressed, rotated and internally filled with water for a long time. Therefore, it is necessary to provide a roller heat treatment process which improves the roller quality.
Disclosure of Invention
The invention mainly aims to provide a calender roller heat treatment process, which solves the problems of small and uneven hardness and surface cracks of the prior calender roller.
In order to achieve the technical effects, the invention adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 840-880 ℃, and preserving heat for 1-2 hours.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to the temperature of 720-750 ℃, and then soaking in a quenching agent for secondary quenching.
And 5: and (3) placing the secondarily quenched steel billet in a 500-530 ℃ box furnace, filling nitrogen for protection, preserving the heat for 5-8 hours, and removing the stress.
The quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 30-40 ℃, and the stirring speed is 0.7-0.8 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 25-31 parts of sodium silicate, 6-12 parts of sodium hydroxide, 7-12 parts of polyethylene glycol and 45-62 parts of water.
The invention has the beneficial effects that:
(1) the invention adopts multiple segmented heat treatment, can improve the surface hardness and uniformity of the roller, has less surface cracks, reduces the influence on the film quality in the use process of the roller, and adopts the calcium sulfate whisker to modify the expandable polystyrene, and in the foaming process, the calcium sulfate whisker is oriented along the wall of the cavity, thereby improving the heat-conducting property along the direction of the calcium sulfate whisker, and being beneficial to improving the efficiency of the phase-change energy-storage material.
Detailed Description
For further understanding of the present invention, the following embodiments are provided to illustrate the technical solutions of the present invention in detail, and the scope of the present invention is not limited by the following embodiments.
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection to avoid metal oxidation.
Step 2: heating to 840-880 ℃, and preserving heat for 1-2 hours.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to the temperature of 720-750 ℃, then immersing in a quenching agent for secondary quenching, and eliminating the defect of uneven hardness existing after the primary quenching.
And 5: and (3) placing the secondarily quenched steel billet in a 500-plus-530 ℃ box furnace, filling nitrogen for protection, preserving heat for 5-8 hours, removing stress, and avoiding cracks in the subsequent use process from generating so as to influence the quality of the film.
The quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 30-40 ℃, the stirring speed is 0.7-0.8m/s, and the uniformity of the temperature of the quenching agent is controlled.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 25-31 parts of sodium silicate, 6-12 parts of sodium hydroxide, 7-12 parts of polyethylene glycol and 45-62 parts of water.
Example 1
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 840 deg.C, and holding for 2 hr.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to 720 ℃, and then immersing in a quenching agent for secondary quenching.
And 5: and (3) placing the secondarily quenched steel billet in a 500 ℃ box furnace, filling nitrogen for protection, preserving heat for 8 hours, removing stress, wherein the quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 30 ℃, and the stirring speed is 0.7 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 25 parts of sodium silicate, 6 parts of sodium hydroxide, 7 parts of polyethylene glycol and 62 parts of water.
Example 2
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 880 deg.C, and maintaining the temperature for 1 hr.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to 750 ℃, and then immersing in a quenching agent for secondary quenching.
And 5: and (3) placing the secondarily quenched steel billet in a 530 ℃ box furnace, filling nitrogen for protection, and keeping the temperature for 5 hours, wherein the quenching agent is a water glass/polymer composite quenching agent for removing stress, the temperature of the quenching agent is 40 ℃, and the stirring speed is 0.8 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 31 parts of sodium silicate, 12 parts of sodium hydroxide, 12 parts of polyethylene glycol and 45 parts of water.
Example 3
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 860 deg.C, and keeping the temperature 1. For 5 hours.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to 740 ℃, and then immersing in a quenching agent for secondary quenching.
And 5: and (3) placing the secondarily quenched steel billet in a 520 ℃ box type furnace, filling nitrogen for protection, preserving heat for 7 hours, removing stress, wherein the quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 35 ℃, and the stirring speed is 0.75 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 30 parts of sodium silicate, 10 parts of sodium hydroxide, 8 parts of polyethylene glycol and 52 parts of water.
Comparative example 1
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 860 deg.C, and keeping the temperature 1. For 5 hours.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
The quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 35 ℃, and the stirring speed is 0.75 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 30 parts of sodium silicate, 10 parts of sodium hydroxide, 8 parts of polyethylene glycol and 52 parts of water.
Comparative example 2
A calender roller heat treatment process adopts the following technical scheme:
step 1: and (3) placing the steel billet in a box type furnace, and filling nitrogen for protection.
Step 2: heating to 860 deg.C, and keeping the temperature 1. For 5 hours.
And step 3: and immersing the heated steel billet into a quenching agent for quenching.
And 4, step 4: and putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to 740 ℃, and then immersing in a quenching agent for secondary quenching.
The quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 35 ℃, and the stirring speed is 0.75 m/s.
The water glass/polymer composite quenching agent comprises the following components in parts by weight: 30 parts of sodium silicate, 10 parts of sodium hydroxide, 8 parts of polyethylene glycol and 52 parts of water.
The materials obtained in examples and comparative examples were subjected to a performance test, and the results are shown in table 1.
TABLE 1
As can be seen from table 1, the example hardness is higher than the comparative example; when comparative example 1 was not subjected to the secondary quenching and stress relief, the uniformity of surface hardness was inferior to that of the examples;
the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution methods fall within the scope of the present invention.
Claims (3)
1. A calender roller heat treatment process is characterized in that: the following technical scheme is adopted:
step 1: putting the steel billet in a box type furnace, and filling nitrogen for protection;
step 2: heating to 840-880 ℃, and preserving heat for 1-2 hours;
and step 3: soaking the heated steel billet into a quenching agent for quenching;
and 4, step 4: putting the quenched steel billet in a box furnace again, introducing nitrogen for protection, heating to the temperature of 720-750 ℃, and then immersing in a quenching agent for secondary quenching;
and 5: and (3) placing the secondarily quenched steel billet in a 500-530 ℃ box furnace, filling nitrogen for protection, preserving the heat for 5-8 hours, and removing the stress.
2. A calender roll heat treatment process as claimed in claim 1, wherein: the quenching agent is a water glass/polymer composite quenching agent, the temperature of the quenching agent is 30-40 ℃, and the stirring speed is 0.7-0.8 m/s.
3. A calender roll heat treatment process as claimed in claim 2, wherein: the water glass/polymer composite quenching agent comprises the following components in parts by weight: 25-31 parts of sodium silicate, 6-12 parts of sodium hydroxide, 7-12 parts of polyethylene glycol and 45-62 parts of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005536.1A CN110592335A (en) | 2019-10-22 | 2019-10-22 | Calender roller heat treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005536.1A CN110592335A (en) | 2019-10-22 | 2019-10-22 | Calender roller heat treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110592335A true CN110592335A (en) | 2019-12-20 |
Family
ID=68850034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911005536.1A Withdrawn CN110592335A (en) | 2019-10-22 | 2019-10-22 | Calender roller heat treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110592335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088416A (en) * | 2020-02-20 | 2020-05-01 | 常州艾柯轧辊有限公司 | Manufacturing process of high-strength roller and heat treatment device adopted in manufacturing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031234A1 (en) * | 2005-09-15 | 2007-03-22 | Andritz Küsters Gmbh | Heatable calender roller |
| CN102560064A (en) * | 2011-12-30 | 2012-07-11 | 中信重工机械股份有限公司 | Integral thermal treatment process for roller shell of high-pressure roller mill |
| CN103343474A (en) * | 2013-06-25 | 2013-10-09 | 宝钢轧辊科技有限责任公司 | Calendaring roller shell and manufacturing method thereof |
| CN105568135A (en) * | 2016-01-15 | 2016-05-11 | 中钢集团邢台机械轧辊有限公司 | Forged steel rubber and plastic calendar roller and heat treatment method thereof |
| CN107916324A (en) * | 2017-11-14 | 2018-04-17 | 张剑 | A kind of valve spool of valve processing technology |
-
2019
- 2019-10-22 CN CN201911005536.1A patent/CN110592335A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031234A1 (en) * | 2005-09-15 | 2007-03-22 | Andritz Küsters Gmbh | Heatable calender roller |
| CN102560064A (en) * | 2011-12-30 | 2012-07-11 | 中信重工机械股份有限公司 | Integral thermal treatment process for roller shell of high-pressure roller mill |
| CN103343474A (en) * | 2013-06-25 | 2013-10-09 | 宝钢轧辊科技有限责任公司 | Calendaring roller shell and manufacturing method thereof |
| CN105568135A (en) * | 2016-01-15 | 2016-05-11 | 中钢集团邢台机械轧辊有限公司 | Forged steel rubber and plastic calendar roller and heat treatment method thereof |
| CN107916324A (en) * | 2017-11-14 | 2018-04-17 | 张剑 | A kind of valve spool of valve processing technology |
Non-Patent Citations (2)
| Title |
|---|
| 姚一帆等: "《热处理问答》", 31 August 1981 * |
| 汪德涛: "《润滑技术手册》", 30 April 1999 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088416A (en) * | 2020-02-20 | 2020-05-01 | 常州艾柯轧辊有限公司 | Manufacturing process of high-strength roller and heat treatment device adopted in manufacturing process |
| CN111088416B (en) * | 2020-02-20 | 2021-10-01 | 常州艾柯轧辊有限公司 | Manufacturing process of high-strength roller and heat treatment device adopted in manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104446646B (en) | A kind of dipping method of preparing isostatic pressing formed graphite goods | |
| CN104874604A (en) | Wide thick titanium alloy plate rolling method | |
| CN110592335A (en) | Calender roller heat treatment process | |
| CN109354389A (en) | A kind of spherical glass processing technology | |
| CN112410697A (en) | High-strength and high-toughness titanium alloy heat treatment method based on nano domain | |
| CN105252793B (en) | A kind of atactic copolymerized polypropene (PP R) tubing annealing process | |
| CN103484609B (en) | A kind of 45# steel quenching method | |
| CN103233113A (en) | Heat treatment process of welded type weighted drill rod joint | |
| CN103101275A (en) | Scratch-resistant aluminum alloy plate and preparation method thereof | |
| CN110791763A (en) | Titanium plate leveling method | |
| CN103769454A (en) | High-temperature forming method of fine-grain TC21 titanium alloy plate | |
| CN110564940A (en) | Quenching processing technology of water pump impeller | |
| CN102925854A (en) | Method for preparing aluminum alloy plate resistant to scratch | |
| CN104512038A (en) | Notebook computer case forming method | |
| CN104531969A (en) | Heat treatment method for reducing automobile insert deformation | |
| CN110129699B (en) | High-uniform-elongation GPa-grade titanium and preparation method thereof | |
| CN113684511A (en) | Electrochemical preparation method of high-temperature self-repairing coating and product thereof | |
| CN107829059A (en) | A kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, Al-alloy products and preparation method thereof | |
| CN111676352A (en) | Steel wire sorbitizing quenching liquid and preparation method and application thereof | |
| CN110423961A (en) | A kind of production method of metal spinning part | |
| CN107954594B (en) | Method for inhibiting stress relaxation of chemically strengthened glass | |
| CN106756773A (en) | A kind of Scratch-resistant aluminum alloy plate preparation method | |
| CN106637206A (en) | Scratch-resistant aluminium alloy plate and preparation method | |
| CN110802218B (en) | Rapid creep aging forming method for large-curvature corrugated plate | |
| CN107746912A (en) | Metalwork anti-deformation Technology for Heating Processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191220 |