CN108031727B - Rubber sleeve for mandrel of cold rolling coiling machine - Google Patents
Rubber sleeve for mandrel of cold rolling coiling machine Download PDFInfo
- Publication number
- CN108031727B CN108031727B CN201810025833.1A CN201810025833A CN108031727B CN 108031727 B CN108031727 B CN 108031727B CN 201810025833 A CN201810025833 A CN 201810025833A CN 108031727 B CN108031727 B CN 108031727B
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- layer
- rubber sleeve
- sleeve
- cold rolling
- oil
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 91
- 238000005097 cold rolling Methods 0.000 title claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000013461 design Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 238000004073 vulcanization Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 52
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/28—Drums or other coil-holders
- B21C47/30—Drums or other coil-holders expansible or contractible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention discloses a rubber sleeve for a mandrel of a cold rolling coiling machine, which is of a layered composite structure and sequentially comprises an oil-resistant inner layer, a high-resilience middle layer and a reducing head print outer layer from inside to outside; the oil-resistant inner layer, the high rebound middle layer and the reducing head print outer layer are bonded by adopting a transition layer; a plurality of inner grooves for improving friction coefficient along the axial direction of the sleeve are uniformly distributed on the inner surface of the oil-resistant inner layer; the outer surface of the outer layer of the subtractive head print is uniformly provided with a plurality of expansion grooves along the axial direction of the sleeve.
Description
Technical Field
The invention relates to the technical field of cold rolling recoiling machines, in particular to a rubber sleeve for a mandrel of a cold rolling recoiling machine.
Background
The metallurgical steel industry is an important industry of supply side structural reform in recent years, the country is continuously brought out from the industry development guidance of the related metallurgical steel industry, the steel productivity is subjected to treatment such as elimination, shutdown and replacement in batches, with the large background of the national manufacturing industry 2025 plan implementation and the large popularization of intelligent manufacturing, in order to meet the requirements of people on good life, the requirements of people on life quality are continuously improved, higher quality requirements are also provided for metallurgical steel products, especially cold-rolled products, the quality of the cold-rolled products influences the quality level of products in the whole steel factory to a great extent, the technological process of the cold-rolled products is complex, equipment investment is large, the technical content is high, the performance and appearance quality requirements of the product quality are all very high, the quality grade of the product is directly influenced, the condition that cold-rolled plates are degraded by clients is generally existed due to the appearance quality, huge quality waste and value loss are caused in intangible, the market value of the cold-rolled products is tens of thousands of yuan because of the appearance quality of the products is improved, and the improvement of the appearance quality of the cold-rolled products is positively advocated to the country is a high, and the practical significance of the cold-rolled steel products is improved to the national appearance quality.
The thickness of the cold-rolled strip steel is generally very thin, the cold-rolled strip steel is required to be packaged and transported in a steel coil form, the steel coil is curled on a coiling machine mandrel, the steel coiling machine mandrel is used for curling and uncoiling the steel coil through expansion and contraction, the curling method can cause head indentation of the steel coil from the first few circles to tens of circles of steel coils in the inner diameter of the steel coil, the indentation length from tens of meters to hundreds of meters is caused, and the product yield and appearance quality are seriously influenced. Typically, the coil inner diameter is 508mm or 610mm, but a dedicated diameter-increasing sleeve is present because of the downstream production flow process or customer requirements to increase the coil inner diameter size. In recent years, the application of the diameter-increased rubber sleeve with a combined structure greatly improves the appearance surface quality of a steel plate and lightens the length of a steel coil tape head mark and the depth of an impression, but the structure and the material performance of the rubber sleeve used in a coiling machine of a cold rolling production line in the market are single, and the performance effect of a rubber elastomer is not fully exerted; in addition, due to the reasons of product design, production technology, material formulation, cost and the like, no integrally structured diameter-increasing rubber sleeve exists in the market.
The diameter-increasing rubber sleeve structure of the existing combined structure in the market has two types, one of which is: the novel rubber sleeve is formed by combining two common rubber sleeves, wherein one of the two common rubber sleeves is split into rubber sleeve sector-shaped petals with equal size, and the rubber sleeve sector-shaped petals are fixed on the outer wall of the complete rubber sleeve through bolt connection, so that the effect of increasing the outer diameter of the rubber sleeve is realized. The other structure is that the sector valve of the rubber sleeve used in the first structure is changed into a sector valve made of plastic polymer material.
The diameter-increasing sleeve with the two structures has a plurality of problems:
1. in the process of splitting the rubber sleeve, a large amount of chemical pollution gas is generated, injury and pollution are caused to operators and the environment, and the rubber sleeve of hundreds of kilograms is required to be assembled manually, so that the efficiency is low, the assembly is extremely inconvenient, and the structural size cannot be effectively ensured.
2. The complete rubber sleeve is connected with the rubber sleeve divided into different valve numbers through bolts, and due to the limitation of the elastic performance of the positioning space and the rubber material, the diameter-increasing sleeve adopting the connecting mode is extremely easy to cause structural failure in the using process of the machine, the effect of curling the steel coil cannot be ensured, the machine is stopped, the personal safety problem exists, the production efficiency is reduced, and the equipment is damaged.
3. The rubber sleeve with the structure has short service life, and after the rubber sleeve made of rubber is punched for fixing the bolt, the structure of the rubber sleeve is damaged, so that the service life of the complete rubber sleeve is seriously shortened.
4. If the diameter-increasing effect is carried out by using the high polymer plastic valve, the effect of reducing the head mark of the steel coil is not obvious.
5. The sector-shaped flap rubber material for increasing the diameter generally does not have the hardness adjustment for purposefully relieving the belt mark, so that the effect of the rubber sleeve on relieving the belt mark is not fully exerted in the use process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rubber sleeve for a mandrel of a cold rolling coiling machine.
The rubber sleeve for the mandrel of the cold rolling coiling machine is of an integral layered composite structure, and comprises an oil-resistant inner layer, a high-resilience middle layer and a head mark reduction outer layer from inside to outside in sequence.
The rubber sleeve for the cold rolling coiling machine mandrel provided by the invention is characterized in that the oil-resistant inner layer, the high-resilience middle layer and the reducing belt head print outer layer are all bonded with transition layers.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, which is characterized in that: the inner surface of the oil-resistant inner layer is uniformly distributed with a plurality of inner grooves along the axial direction of the sleeve.
The invention relates to a rubber sleeve for a mandrel of a cold rolling coiling machine, wherein a plurality of expansion grooves along the axial direction of the sleeve are uniformly distributed on the outer surface of an outer layer of a reducing belt head print.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, wherein one end of the rubber sleeve is a steel coil unloading end, and the other end of the rubber sleeve is an installation inlet end; the sleeve outer wall of the steel coil unloading end adopts an inclined angle design, and an included angle A is formed between the sleeve outer wall and the horizontal direction.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, wherein the inner wall of the sleeve at the installation inlet end adopts an inclined angle design, and an included angle B is formed between the inner wall of the sleeve and the horizontal direction.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, wherein the hardness of an oil-resistant inner layer, a high-resilience middle layer and an outer layer of a subtractive belt head print are respectively high-resilience middle layer, oil-resistant inner layer and outer layer of the subtractive belt head print.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, wherein the depth of an expansion groove is larger than that of an inner groove; the width of the expansion groove is larger than that of the inner groove; the bottoms of the sections of the expansion promoting grooves and the inner grooves are arc-shaped.
The invention relates to a rubber sleeve for a cold rolling coiling machine mandrel, wherein the wall thickness of the rubber sleeve is 140-170 mm.
The rubber sleeve for the cold rolling coiling machine mandrel provided by the invention is formed in one step by bonding, vulcanizing and integrally forming the oil-resistant inner layer, the high-resilience middle layer and the reducing belt head print outer layer through the bonding transition layer.
Compared with the prior art, the invention has the outstanding effects that:
(1) The diameter-increasing rubber sleeve adopts a large-size integral structure. The wall thickness of the rubber sleeve is increased by about 1 time compared with that of a common rubber sleeve, and the specific size can be determined by design according to the size required by customers or the downstream process requirement.
(2) Adopt rubber material performance layering composite construction, inlayer and take oily mandrel contact, during operation both expand repeatedly and shrink, the rubber material performance requirement that the inlayer adopted is: oil resistance, high friction coefficient, good rebound and lower rubber hardness, so as to ensure the oil resistance and necessary friction of the rubber sleeve. Because the rubber sleeve needs to expand and contract repeatedly, the rubber sleeve must have excellent overall structural stability and rebound performance, and the middle layer is made of rubber materials with high rebound and relatively high hardness, so that rebound and repeated use of the rubber sleeve are ensured, and stability, coaxiality and circular runout of the rubber sleeve during high-speed rotation of the rubber sleeve are ensured. The outer layer is in direct contact with the oil-bearing steel plate, plays a vital role in eliminating the head mark of the steel coil, reduces the hardness of the outer layer rubber as much as possible, plays a role in resisting oil and reducing the head mark to the greatest extent, and the outer layer rubber adopts an oil-resistant rubber thin layer with lower hardness than the inner layer rubber.
(3) The outer wall of the rubber sleeve adopts a boosting expansion grooving structure, and the inner wall adopts an inner groove structure for increasing friction force. The grooving structure is designed to ensure that the expansion and contraction of the mandrel and the diameter-increasing sleeve with large weight and large wall thickness of the whole structure can still work normally under the condition that the expansion force of the mandrel is not additionally increased, and the size and quantity design requirements of the grooving structure meet the design requirements of the performance of the rubber sleeve and the normal expansion and contraction operation requirements of the mandrel of the equipment. The inner wall adopts the interior slot structure of equipartition for the frictional force that produces when guaranteeing sleeve inlayer rubber and dabber contact rotation is big enough, guarantees that both do not take place the phenomenon of skidding when moving.
(4) The inner layer, the middle layer and the outer layer of the rubber sleeve are integrally formed by bonding, vulcanizing and one-step forming by adopting rubber materials with similar polarities, so that interlayer separation is prevented, and the overall performance of the rubber sleeve is ensured to be fully exerted.
(5) The inlet end of rubber sleeve installation, rubber sleeve inner wall adopts the design of inclination for sleeve and dabber's installation is more convenient, reduces the damage of colliding with between sleeve and the dabber, extension sleeve life. The steel coil unloading end of the rubber sleeve is convenient for steel coil unloading due to the fact that the inclined angle design is adopted on the outer wall of the rubber sleeve, scratches of the steel coil tape head to the outer wall of the sleeve are reduced, and the service life of the sleeve is prolonged.
(6) The rubber sleeve is of an integral composite structure, the development of the whole flow of design, research and development, production, application and the like is realized, the successful research and development and application of the product are realized, the blank of the domestic market is filled in the field, and the leading level is reached.
The rubber sleeve for the mandrel of the cold rolling coiling machine is further described below with reference to the specification, the drawings and the specific examples.
Drawings
FIG. 1 is a radial cross-sectional view of a rubber sleeve for a cold rolling coiler mandrel;
fig. 2 is a cross-sectional view taken along the direction "A-A" in fig. 1.
Detailed Description
As shown in fig. 1-2, the rubber sleeve for the cold rolling coiling machine mandrel is of an integral layered composite structure, and comprises an oil-resistant inner layer 1, a high-resilience middle layer 2 and a reducing belt head print outer layer 3 from inside to outside in sequence. The hardness of the oil-resistant inner layer 1, the high-resilience middle layer 2 and the external layer 3 of the subtractive head print are sequentially equal to that of the high-resilience middle layer 2, the oil-resistant inner layer 1 and the external layer 3 of the subtractive head print.
And an adhesive transition layer 4 is adopted between the oil-resistant inner layer 1 and the high-rebound middle layer 2, and between the high-rebound middle layer 2 and the reducing head print outer layer 3. The oil-resistant inner layer 1, the high rebound middle layer 2 and the reducing head print outer layer 3 are integrally formed through bonding, vulcanization and one-step molding through a bonding transition layer 4. The rubber material used for bonding the transition layer 4 has similar polarity to the oil-resistant inner layer 1, the high rebound middle layer 2 and the reducing head print outer layer 3.
The inner surface of the oil-resistant inner layer 1 is uniformly distributed with a plurality of inner grooves 5 along the axial direction of the sleeve. A plurality of expansion grooves 6 along the axial direction of the sleeve are uniformly distributed on the outer surface of the subtractive head print outer layer 3. The depth of the expansion groove 6 is larger than that of the inner groove 5; the width of the expansion groove 6 is larger than that of the inner groove 5; the bottoms of the sections of the expansion promoting grooves 6 and the inner grooves 5 are arc-shaped.
One end of the rubber sleeve is a steel coil unloading end, and the other end is an installation inlet end; the sleeve outer wall of the steel coil unloading end adopts an inclined angle design, and an included angle A7 is formed between the sleeve outer wall and the horizontal direction. The inner wall of the sleeve provided with the inlet end adopts an inclined angle design, and an included angle B8 is formed between the inner wall of the sleeve and the horizontal direction.
The wall thickness of the rubber sleeve is 140mm to 170mm.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. A rubber sleeve for a cold rolling coiling machine mandrel is characterized in that: is of an integral layered composite structure, and comprises an oil-resistant inner layer (1), a high rebound middle layer (2) and a reducing head print outer layer (3) from inside to outside in sequence; the hardness of the oil-resistant inner layer (1), the high-resilience middle layer (2) and the subtractive head print outer layer (3) are sequentially higher than that of the high-resilience middle layer (2) > the oil-resistant inner layer (1) > the subtractive head print outer layer (3); an adhesive transition layer (4) is adopted between the oil-resistant inner layer (1) and the high-rebound middle layer (2) and between the high-rebound middle layer (2) and the reducing head print outer layer (3); the rubber material used for the bonding transition layer (4) is similar to the polarities of the oil-resistant inner layer (1), the high rebound middle layer (2) and the reducing belt head print outer layer (3).
2. The rubber sleeve for a cold rolling coiler mandrel according to claim 1, wherein: the inner surface of the oil-resistant inner layer (1) is uniformly distributed with a plurality of inner grooves (5) which are used for improving the friction coefficient of the inner surface along the axial direction of the sleeve.
3. The rubber sleeve for a cold rolling coiler mandrel according to claim 2, characterized in that: the outer surface of the subtractive head print outer layer (3) is uniformly distributed with a plurality of expansion grooves (6) along the axial direction of the sleeve.
4. A rubber sleeve for a cold rolling coiler mandrel according to claim 3, characterized in that: one end of the rubber sleeve is a steel coil unloading end, and the other end of the rubber sleeve is an installation inlet end; the outer wall of the sleeve at the steel coil unloading end adopts an inclined angle design, and an included angle A (7) is formed between the outer wall of the sleeve and the horizontal direction.
5. The rubber sleeve for a cold rolling coiler mandrel according to claim 4, wherein: the inner wall of the sleeve at the installation inlet end adopts an inclined angle design, and an included angle B (8) is formed between the inner wall of the sleeve and the horizontal direction.
6. The rubber sleeve for a cold rolling coiler mandrel according to any one of claims 3-5, characterized in that: the depth of the expansion groove (6) is larger than that of the inner groove (5); the width of the expansion groove (6) is larger than that of the inner groove (5); the bottoms of the sections of the expansion grooves (6) and the inner grooves (5) are arc-shaped.
7. The rubber sleeve for a cold rolling coiler mandrel according to claim 6, wherein: the wall thickness of the rubber sleeve is 140mm to 170mm.
8. The rubber sleeve for a cold rolling coiler mandrel according to any one of claims 1-5 and 7, characterized in that: the oil-resistant inner layer (1), the high rebound middle layer (2) and the reducing belt head seal outer layer (3) are integrally formed through bonding and vulcanization through the bonding transition layer (4).
9. The rubber sleeve for a cold rolling coiler mandrel according to claim 6, wherein: the oil-resistant inner layer (1), the high rebound middle layer (2) and the reducing belt head seal outer layer (3) are integrally formed through bonding and vulcanization through the bonding transition layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025833.1A CN108031727B (en) | 2018-01-11 | 2018-01-11 | Rubber sleeve for mandrel of cold rolling coiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025833.1A CN108031727B (en) | 2018-01-11 | 2018-01-11 | Rubber sleeve for mandrel of cold rolling coiling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031727A CN108031727A (en) | 2018-05-15 |
| CN108031727B true CN108031727B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810025833.1A Active CN108031727B (en) | 2018-01-11 | 2018-01-11 | Rubber sleeve for mandrel of cold rolling coiling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108031727B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309090A (en) * | 2021-12-30 | 2022-04-12 | 江苏鼎胜新能源材料股份有限公司 | Rubber reducing sleeve for aluminum plate cold compound rolling mill |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132136A (en) * | 1994-11-10 | 1996-05-28 | Sumitomo Metal Ind Ltd | Equipment for coiling strip-shaped product |
| JP2004130382A (en) * | 2002-10-07 | 2004-04-30 | Unie Star:Kk | Rubber sleeve for coiling metal strip |
| JP2005014091A (en) * | 2004-08-24 | 2005-01-20 | Sumitomo Metal Ind Ltd | Rubber sleeve for taking up metallic strip |
| CN2673527Y (en) * | 2003-11-05 | 2005-01-26 | 强静 | Cold rolled band steel coiling sleeve |
| CN201186310Y (en) * | 2007-12-19 | 2009-01-28 | 宝钢新日铁汽车板有限公司 | Rubber sleeve for coiling band steel |
| CN201702202U (en) * | 2010-04-15 | 2011-01-12 | 马鞍山市荣亿密封材料有限责任公司 | Elastic sleeve of veneer reeling machine |
| CN201841180U (en) * | 2010-10-09 | 2011-05-25 | 天津太钢天管不锈钢有限公司 | Rubber lined sleeve capable of reducing coiling crease and rubbing print on band steel |
| CN202265268U (en) * | 2011-07-04 | 2012-06-06 | 周庆云 | Rubber sleeve tube for coiling |
| CN202715656U (en) * | 2012-06-18 | 2013-02-06 | 首钢总公司 | Cold rolling thin strip steel reel-up sleeve |
| CN105436236A (en) * | 2015-12-10 | 2016-03-30 | 安徽马钢自动化信息技术有限公司 | Control method capable of improving mark-on-strip-steel phenomenon in cold-rolled sheet coiling |
| CN207787333U (en) * | 2018-01-11 | 2018-08-31 | 北京市城南橡塑技术研究所 | Cold coiling machine mandrel rubber bush |
-
2018
- 2018-01-11 CN CN201810025833.1A patent/CN108031727B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132136A (en) * | 1994-11-10 | 1996-05-28 | Sumitomo Metal Ind Ltd | Equipment for coiling strip-shaped product |
| JP2004130382A (en) * | 2002-10-07 | 2004-04-30 | Unie Star:Kk | Rubber sleeve for coiling metal strip |
| CN2673527Y (en) * | 2003-11-05 | 2005-01-26 | 强静 | Cold rolled band steel coiling sleeve |
| JP2005014091A (en) * | 2004-08-24 | 2005-01-20 | Sumitomo Metal Ind Ltd | Rubber sleeve for taking up metallic strip |
| CN201186310Y (en) * | 2007-12-19 | 2009-01-28 | 宝钢新日铁汽车板有限公司 | Rubber sleeve for coiling band steel |
| CN201702202U (en) * | 2010-04-15 | 2011-01-12 | 马鞍山市荣亿密封材料有限责任公司 | Elastic sleeve of veneer reeling machine |
| CN201841180U (en) * | 2010-10-09 | 2011-05-25 | 天津太钢天管不锈钢有限公司 | Rubber lined sleeve capable of reducing coiling crease and rubbing print on band steel |
| CN202265268U (en) * | 2011-07-04 | 2012-06-06 | 周庆云 | Rubber sleeve tube for coiling |
| CN202715656U (en) * | 2012-06-18 | 2013-02-06 | 首钢总公司 | Cold rolling thin strip steel reel-up sleeve |
| CN105436236A (en) * | 2015-12-10 | 2016-03-30 | 安徽马钢自动化信息技术有限公司 | Control method capable of improving mark-on-strip-steel phenomenon in cold-rolled sheet coiling |
| CN207787333U (en) * | 2018-01-11 | 2018-08-31 | 北京市城南橡塑技术研究所 | Cold coiling machine mandrel rubber bush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108031727A (en) | 2018-05-15 |
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