CN111893800B - Preparation method of stainless steel packing paper beneficial to flattening elongation percentage rolling - Google Patents
Preparation method of stainless steel packing paper beneficial to flattening elongation percentage rolling Download PDFInfo
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- CN111893800B CN111893800B CN202010552730.8A CN202010552730A CN111893800B CN 111893800 B CN111893800 B CN 111893800B CN 202010552730 A CN202010552730 A CN 202010552730A CN 111893800 B CN111893800 B CN 111893800B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
A method for preparing stainless steel packing paper beneficial to flattening elongation percentage rolling comprises the following steps: preparing oil-containing secondary fiber by taking recycled waste packing paper of a steel mill as a raw material; proportioning the slurry: northern bleached sulfate needle pulp: 49-63%, southern bleached sulfate broad leaf pulp: 21-27%, oil-containing secondary fiber: 10-30% by mass; and uniformly mixing the pulp in a pulp mixing pool to prepare the packing paper. The preparation process is simple and easy to operate, the formula of the packing paper is scientific and reasonable, the prepared packing paper has better tissue uniformity, surface strength and tensile strength, the elongation rate of the strip steel during flattening can be improved, the product quality is effectively improved, and the method can be used for producing stainless steel products of an acid pickling cold-annealing unit and a flattening unit.
Description
Technical Field
The invention belongs to the technical field of stainless steel production, relates to stainless steel packing paper, and particularly relates to a preparation method of stainless steel packing paper beneficial to flattening elongation rolling, which is specially used for producing stainless steel products of an acid pickling cold-annealing unit and a flattening unit.
Background
Ferritic stainless steel represents steel grade 430 and is annealed after rolling in a mill train, the annealing resulting in a yield plateau. The yield plateau has a great influence on the quality of the product for deep drawing, causing rough slip lines or cracks on the surface of the product. It is therefore necessary to produce a certain elongation through the levelling unit to eliminate the yield plateau. At present, stainless steel leveling has two modes of dry leveling and wet leveling, and the dry leveling is a mode commonly used by stainless steel factories. Compared with wet leveling, the dry leveling has the effect of leveling liquid, the elongation rate is not easy to roll out, the purpose of eliminating a yield platform can be achieved only by leveling for many times, the production cost is increased, and the quality risk is also increased. Therefore, it is necessary to prepare a stainless steel packing paper which is beneficial to flattening the rolled-out elongation.
At present, domestic stainless steel packing paper has few patents, only a few of which have related patents on high temperature resistance and hydrophilicity, and the packing paper which is beneficial to flattening the elongation rate is not reported. Because the leveling unit has the characteristics of high running speed, large uncoiling and coiling tension and more times of repeated use of the packing paper, the packing paper is required to have better physical properties such as tissue uniformity, surface strength, tensile strength and the like so as to prevent the defects of press-in of the surface of a steel plate caused by hair and powder falling of the paper in the leveling process. Meanwhile, the padding paper is required to have trace grease substances uniformly transferred to the surface of the strip steel under the action of tension in the contact process of the padding paper and the strip steel, and the padding paper is beneficial to obtaining a controllable lubricating effect similar to a leveling liquid on the surface of the strip steel in the leveling process, so that the elongation rate of the strip steel in the leveling process is improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of stainless steel packing paper beneficial to flattening elongation rate rolling, wherein the prepared packing paper has better tissue uniformity, surface strength and tensile strength, and can improve the elongation rate of strip steel in flattening.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of stainless steel packing paper beneficial to flattening elongation percentage rolling is characterized by comprising the following steps:
1) preparing oil-containing secondary fibers by taking recycled waste packing paper of a steel mill as a raw material;
2) proportioning the slurry: northern bleached sulfate needle pulp: 49-63%, southern bleached sulfate broad leaf pulp: 21-27%, oil-containing secondary fiber: 10-30% by mass;
3) and uniformly mixing the pulp in a pulp mixing pool to prepare the packing paper.
The technological parameters are as follows: pulping concentration: 5.0-6.0%, pulping temperature: at 70-80 ℃, pulping time: 30-50 min, defibering concentration of waste paper pulp: 3.8-4.2%, the degree of kowtowing: SR at 55-65 degrees, wet weight: 3.5-4.5 g.
Preferably, the recycled waste packing paper in the step 1) is waste packing paper with uniform grease adsorption and consistent color.
As an improvement, the preparation of the oil-containing secondary fiber in the step 1) is to adopt a biological cleaning agent to dissociate the fibers of the recycled waste packing paper and remove the redundant rolling oil, and the addition amount of the biological cleaning agent is as follows: 0.5 to 1.0 percent.
Further, the preparation process of the oil-containing secondary fiber pulp of the step 1) comprises the following steps: recycled waste packing paper → medium consistency hydropulper → waste paper pulp tank → defibrator → twin-wire press → waste paper pulp tank → pressure screen → disc thickener → waste paper pulp tank → high frequency defibrator → broken paper knocking post tower → pulp blending tank.
Further, the preparation process of the northern bleached sulfate needle-leaved pulp in the step 2) comprises the following steps: softwood pulp board → hydropulper → anterior softwood pulp tank before tapping → high concentration slag separator → disc mill → middle pulp tank → disc mill → rear pulp tower after tapping → pulp mixing tank.
Further, the preparation process of the south bleached sulfate broad leaf pulp in the step 2) comprises the following steps: hardwood pulp board → hydropulper → anterior contour leaf pulp tank before knocking → high concentration slag separator → middle pulp tank → disc mill → pulp tower after knocking → pulp distribution tank.
Further, the concrete process of preparing the packing paper after the slurry obtained in the step 3) is uniformly mixed in the slurry preparing pool comprises the following steps: the pulp distribution tank → the homogenizing mill → the pulp making tank → the pulp flushing pump → the scummer → the pulp feeding pump → the pressure screen → the pulp box → the net part → the press part → the front drying part → the surface sizing part → the rear drying part → the press rolling part → the re-rolling part → the baling and warehousing.
Preferably, the slurry mixture ratio of the step 2) is as follows: northern bleached sulfate needle pulp: 56%, southern bleached sulfate broad leaf pulp: 24%, oil-containing secondary fiber: 20 percent, and the percentage is mass percent.
Preferably, the process parameters are as follows: the crushed pulp concentration: 5.0%, pulping temperature: 80 ℃, pulping time: 40min, defibering concentration of waste paper pulp: 4.0%, click rate: 65 ° SR, wet weight: 3.7 g.
Compared with the prior art, the invention has the advantages that: the slurry proportion is scientific and reasonable, the northern bleached sulfate needle-leaf pulp is selected, the southern bleached sulfate broad-leaf pulp with a certain proportion is matched, and then the oil-containing secondary fiber is matched, so that the requirement that the padding paper can provide a lubricating effect for the surface of the strip steel under the action of tension when the strip steel is padded in the acid-washing cold-annealing unit can be met; the oil-containing secondary fiber is selected from recycled waste packing paper, so that the cost is effectively reduced. The preparation process is simple and easy to operate, the formula of the packing paper is scientific and reasonable, the prepared packing paper has better tissue uniformity, surface strength and tensile strength, the elongation rate of the strip steel during flattening can be improved, the product quality is effectively improved, and the method can be used for producing stainless steel products of pickling cold-annealing units and flattening units.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
A method for preparing stainless steel packing paper beneficial to flattening elongation percentage rolling comprises the following steps:
1) the method comprises the following steps of (1) preparing the oil-containing secondary fiber by using recycled waste packing paper of a steel mill as a raw material: retrieve waste packing paper and select even, the unanimous waste packing paper side of color and luster of grease absorption to use, the preparation of oiliness secondary fiber adopts biological cleaner to dissociate the fibre of retrieving waste packing paper and get rid of unnecessary rolling oil, biological cleaner addition: 0.5 to 1.0 percent. The biological cleaning agent may be any commercially available cleaning agent for cleaning greasy dirt, such as Bio-oil clean E01 biological environment-friendly greasy dirt cleaning agent, to name a few.
The preparation process comprises the following steps: recycled waste packing paper → medium-consistency hydrapulper → waste paper pulp tank → defibrator → twin-wire pulp press → waste paper pulp tank → pressure screen → disc thickener → waste paper pulp tank → high-frequency fluffer → fluffer disk grinder → waste paper back tower → pulp mixing tank.
2) The slurry formulations are as follows:
the percentage is mass percentage;
wherein the preparation process of the northern bleached sulfate needle-leaved pulp comprises the following steps: softwood pulp board → hydropulper → anterior softwood pulp tank before tapping → high-concentration slag separator → disc mill → middle pulp tank → disc mill → posterior pulp tower after tapping → pulp blending tank;
the preparation process of the southern bleached sulfate broad-leaved pulp comprises the following steps: broad leaf wood pulp board → hydrapulper → anterior contour leaf pulp tank before knocking → high concentration slag separator → middle pulp tank → disc mill → pulp tower after knocking → pulp mixing tank;
3) uniformly mixing the slurry in a slurry preparation tank to prepare packing paper:
the specific process comprises the following steps: the pulp distribution tank → the homogenizing mill → the pulp making tank → the pulp flushing pump → the scummer → the pulp feeding pump → the pressure screen → the pulp box → the net part → the press part → the front drying part → the surface sizing part → the rear drying part → the press rolling part → the re-rolling part → the baling and warehousing.
The process parameters are as follows:
and (5) producing each process parameter by taking the figure of merit as a reference value.
After the packing paper is produced, the packing paper and common packing paper are packed into the same roll of 430 steel band steel in an acid pickling and cooling unit, and the elongation of a leveling unit in production is as follows:
as can be seen from the above table: the elongation of the strip steel of the paper padding part is larger than that of the common paper padding.
The invention is illustrated in more detail below by means of a number of examples and comparative examples:
table 1 shows the composition of the packing paper prepared in examples and comparative examples, table 2 shows the manufacturing process parameters of the packing paper prepared in examples and comparative examples, table 3 shows the properties of the packing paper prepared in examples and comparative examples, and table 4 shows the flat elongation of the packing paper prepared in examples and comparative examples after the packing in of the acid pickling cold-rolling mill.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
As can be seen from the rolling force parameters in Table 4, the elongation of the strip steel of the packing paper prepared by the invention is larger than that of the packing paper prepared by the comparison, which shows that the packing paper prepared by the invention is easier to flatten the elongation.
Claims (7)
1. A preparation method of stainless steel packing paper beneficial to flattening elongation percentage rolling is characterized by comprising the following steps:
1) preparing oil-containing secondary fiber by taking recycled waste packing paper of a steel mill as a raw material;
the preparation of the oil-containing secondary fiber in the step 1) is to adopt a biological cleaning agent to dissociate the fiber of the recycled waste packing paper and remove redundant rolling oil, wherein the addition amount of the biological cleaning agent is as follows: 0.5-1.0%;
the preparation process of the oil-containing secondary fiber pulp in the step 1) comprises the following steps: recycled waste packing paper → medium-consistency hydropulper → waste paper pulp tank → defibrator → twin-wire press → waste paper pulp tank → pressure sieve → disc thickener → waste paper pulp tank → high-frequency fluffer → fluffer disc mill → waste paper beating tower → pulp blending tank;
2) proportioning the slurry: northern bleached sulfate needle pulp: 49-63%, southern bleached sulfate broad-leaf pulp: 21-27%, oil-containing secondary fiber: 10-30% by mass;
3) uniformly mixing the pulp in a pulp mixing pool to prepare packing paper;
the technological parameters are as follows: pulping concentration: 5.0-6.0%, pulping temperature: 70-80 ℃, pulping time: 30-50 min, defibering concentration of waste paper pulp: 3.8-4.2%, the degree of kowtowing: SR at 55-65 degrees, wet weight: 3.5-4.5 g.
2. The method of claim 1, wherein: the recycled waste packing paper in the step 1) is waste packing paper with uniform grease adsorption and consistent color.
3. The production method according to claim 1, characterized in that: the preparation process of the northern bleached sulfate coniferous pulp in the step 2) comprises the following steps: softwood pulp board → hydropulper → anterior softwood pulp tank before tapping → high consistency scummer → refiner → middle pulp tank → refiner → posterior pulp tower after tapping → blending tank.
4. The method of claim 1, wherein: the preparation process of the southern bleached sulfate broad-leaved pulp in the step 2) comprises the following steps: hardwood pulp board → hydropulper → anterior contour leaf pulp tank before knocking → high concentration slag separator → middle pulp tank → disc mill → pulp tower after knocking → pulp distribution tank.
5. The production method according to claim 1, characterized in that: the concrete process for preparing the packing paper after the slurry obtained in the step 3) is uniformly mixed in the slurry preparation pool comprises the following steps: the pulp distribution tank → the homogenizing mill → the pulp making tank → the pulp flushing pump → the scummer → the pulp feeding pump → the pressure screen → the pulp box → the net part → the press part → the front drying part → the surface sizing part → the rear drying part → the press rolling part → the re-rolling part → the baling and warehousing.
6. The method of claim 1, wherein: the slurry mixture ratio of the step 2) is as follows: northern bleached sulfate needle pulp: 56%, southern bleached sulfate broad leaf pulp: 24%, oil-containing secondary fiber: 20 percent, and the percentage is mass percent.
7. The method of claim 1, wherein: the process parameters are as follows: the crushed pulp concentration: 5.0%, pulping temperature: 80 ℃, pulping time: 40min, defibering concentration of waste paper pulp: 4.0%, click rate: 65 ° SR, wet weight: 3.7 g.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051062A (en) * | 1989-10-18 | 1991-05-01 | 气体产品与化学公司 | The removal ink of secondary stock and bleaching |
| CN1936182A (en) * | 2006-10-19 | 2007-03-28 | 樊运民 | Method for preparing stainless steel lining paper |
| CN202164505U (en) * | 2011-07-01 | 2012-03-14 | 河南省轻工业科学研究所有限公司 | High-temperature-resistant stainless steel lining paper production system |
| CN102704301A (en) * | 2012-06-19 | 2012-10-03 | 连城县东方经济开发有限公司 | Process of coated kraft waste paper recycled intermediary paper |
| CN102733226A (en) * | 2012-07-16 | 2012-10-17 | 上海殷泰纸业有限公司 | Method for preparing stainless steel interleaving paper by wastepaper |
| KR101230125B1 (en) * | 2011-08-01 | 2013-02-06 | 주식회사 포스코 | Device for carrying the paper from stainless steel strip |
| CN105734455A (en) * | 2016-03-25 | 2016-07-06 | 张家港浦项不锈钢有限公司 | Austenitic stainless steel applicable to production of beer barrels and manufacturing method and application thereof |
| CN106758533A (en) * | 2016-12-13 | 2017-05-31 | 佛山市秸和科技有限公司 | A kind of abrasion-proof stainless steel lining paper and preparation method thereof |
| CN106939523A (en) * | 2017-03-14 | 2017-07-11 | 贵州百顺科技有限公司 | A kind of waste paper regenerating process and equipment for fundamentally solving waste paper regenerated pollution |
| CN107044067A (en) * | 2017-04-14 | 2017-08-15 | 仙鹤股份有限公司 | A kind of production method of the high-performance stainless steel material liners paper of oil suction |
| CN110700009A (en) * | 2019-10-10 | 2020-01-17 | 建滔（佛冈）绝缘材料有限公司 | Production process and application of hot-pressed paperboard for pressing copper-clad plate as cushion layer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3264073B2 (en) * | 1994-01-21 | 2002-03-11 | 王子製紙株式会社 | Neutral paper for stainless steel plate |
| US20040159413A1 (en) * | 2003-02-03 | 2004-08-19 | Rayonier Products And Financial Services Company | Cellulosic fiber web treatment systems and associated processes |
| JP2011099180A (en) * | 2009-11-06 | 2011-05-19 | Seed:Kk | Pulp concentration adjusting method for used paper recycling apparatus, pulp concentration adjusting device of used paper recycling apparatus, and used paper recycling apparatus |
| CN106948223A (en) * | 2017-04-18 | 2017-07-14 | 浙江华川实业集团有限公司 | A kind of high-strength stainless steel lining paper and its manufacture method |
| CN110144755B (en) * | 2019-06-14 | 2021-11-02 | 汇胜集团股份有限公司 | Steel temperature paper and preparation process thereof |
| CN110238194A (en) * | 2019-06-25 | 2019-09-17 | 山西太钢不锈钢精密带钢有限公司 | Ultra-thin stainless steel accurate band steel sand blasted surface milling method |
-
2020
- 2020-06-17 CN CN202010552730.8A patent/CN111893800B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051062A (en) * | 1989-10-18 | 1991-05-01 | 气体产品与化学公司 | The removal ink of secondary stock and bleaching |
| CN1936182A (en) * | 2006-10-19 | 2007-03-28 | 樊运民 | Method for preparing stainless steel lining paper |
| CN202164505U (en) * | 2011-07-01 | 2012-03-14 | 河南省轻工业科学研究所有限公司 | High-temperature-resistant stainless steel lining paper production system |
| KR101230125B1 (en) * | 2011-08-01 | 2013-02-06 | 주식회사 포스코 | Device for carrying the paper from stainless steel strip |
| CN102704301A (en) * | 2012-06-19 | 2012-10-03 | 连城县东方经济开发有限公司 | Process of coated kraft waste paper recycled intermediary paper |
| CN102733226A (en) * | 2012-07-16 | 2012-10-17 | 上海殷泰纸业有限公司 | Method for preparing stainless steel interleaving paper by wastepaper |
| CN105734455A (en) * | 2016-03-25 | 2016-07-06 | 张家港浦项不锈钢有限公司 | Austenitic stainless steel applicable to production of beer barrels and manufacturing method and application thereof |
| CN106758533A (en) * | 2016-12-13 | 2017-05-31 | 佛山市秸和科技有限公司 | A kind of abrasion-proof stainless steel lining paper and preparation method thereof |
| CN106939523A (en) * | 2017-03-14 | 2017-07-11 | 贵州百顺科技有限公司 | A kind of waste paper regenerating process and equipment for fundamentally solving waste paper regenerated pollution |
| CN107044067A (en) * | 2017-04-14 | 2017-08-15 | 仙鹤股份有限公司 | A kind of production method of the high-performance stainless steel material liners paper of oil suction |
| CN110700009A (en) * | 2019-10-10 | 2020-01-17 | 建滔（佛冈）绝缘材料有限公司 | Production process and application of hot-pressed paperboard for pressing copper-clad plate as cushion layer |
Non-Patent Citations (2)
| Title |
|---|
| 不锈钢垫纸的研制;邸锐 等;《纸和造纸》;20100228;第29卷(第2期);第1-3页 * |
| 硬态不锈钢色差缺陷产生原因及对策;李明 等;《宝钢技术》;20190831(第4期);第8-11页 * |
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