CN112959532A - One-step mixing production process of ethylene propylene diene monomer - Google Patents
One-step mixing production process of ethylene propylene diene monomer Download PDFInfo
- Publication number
- CN112959532A CN112959532A CN202110164250.9A CN202110164250A CN112959532A CN 112959532 A CN112959532 A CN 112959532A CN 202110164250 A CN202110164250 A CN 202110164250A CN 112959532 A CN112959532 A CN 112959532A
- Authority
- CN
- China
- Prior art keywords
- rubber
- mixing
- diene monomer
- ethylene propylene
- production process
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a one-step mixing production process of ethylene propylene diene monomer, which is characterized in that a rubber strip with stable size, smooth surface and few particles of an extruded product is obtained through a process route of sweeping a weight and feeding → intelligent weighing → internal mixer mixing → first open-mixing-tabletting → automatic rubber turning and cooling → second open-mixing-rubber smashing and thin-passing → third open-mixing-strip-discharging → rubber filtering → rubber material cooling in a rubber cooling line → material receiving, and the production efficiency is improved.
Description
Technical Field
The invention relates to a one-step mixing production process of ethylene propylene diene monomer.
Background
The ethylene-propylene-diene monomer adhesive tape for automobile decoration is prepared by a two-step preparation process, wherein the two-step process flow comprises the following steps: a, mixing: adding raw rubber, zinc oxide and stearic acid, pressure refining for 30 seconds by adding carbon black and the like in a plug lifting manner, adding oil in the plug lifting manner, mixing until the temperature is raised to 150-. B smelting and vulcanizing process: 1/2 rubber A is added for milling for 30 seconds, then small materials such as an accelerant, a vulcanizing agent, a foaming agent and the like and 1/2 vehicle rubber A are added for milling for 1.5-2 minutes, the temperature is raised to 80-90 ℃ for rubber discharge, the rubber is cooled in a rubber cooling line, the temperature is less than or equal to 30 ℃, and the materials are collected for standby. The traditional two-step method has long mixing time, high glue discharging temperature, large number of glue stock parking, turnover places and worker configuration and higher production cost. With the increasing market competition, research and development personnel are required to develop a production process with stable quality, low production cost and high production efficiency.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a one-step mixing production process of Ethylene Propylene Diene Monomer (EPDM) so as to reduce the production cost and improve the production efficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is a one-step mixing production process of Ethylene Propylene Diene Monomer (EPDM), which comprises the following steps:
step 1: after the automatic weighing preparation of the upper auxiliary machine system of the internal mixer is completed according to the single part of the production formula, the internal mixer starts to feed and mix, the EPDM raw rubber, the zinc oxide and the stearic acid are firstly fed, the top bolt pressure is 40-50 MPa, and the mixing is carried out for 10-15 seconds;
step 2: lifting the top plug, adding carbon black and calcium carbonate, and pressing and mixing for 40-45 seconds;
and step 3: raising the top plug, adding a vulcanizing agent, an accelerant, calcium oxide and an anti-coking agent, mixing for 40-45 seconds under the pressure of 40-50 MPa;
and 4, step 4: when the temperature rises to 80-90 ℃, the top plug is lifted, paraffin oil is added, the top plug is pressed for mixing, when the temperature rises to 110 ℃, the top plug is lifted, the mixing lasts for 10-15 seconds, and the top plug is pressed for mixing; when the temperature is raised to 110-125 ℃;
and 5: discharging the materials by an internal mixer, tabletting and discharging the materials in a first open mill, cooling the materials by an automatic rubber turning device, transferring the materials into a second open mill to smash the materials when the temperature is reduced to 70-90 ℃, transferring the materials into a third open mill to thin and discharge the materials;
step 6: the adhesive tape enters a rubber filter for gluing, and enters a glue cooling line for cooling after being filtered.
In one embodiment of the invention, in the step 6, the rubber is filtered in a rubber filter, the temperature of the rubber filter body is 40-50 ℃, the temperature of the machine head is less than or equal to 75 ℃, the filter screen is 80-100 meshes, the rubber is cooled in a rubber cooling line after being filtered, the rubber sheet is collected at the temperature of less than or equal to 30 ℃ after the moisture is dried, and the rubber sheet is put into a vertical warehouse for standby. And 6, extruding impurities in the rubber strip subjected to three-pressure forming by the open mill through a rubber filter.
In one embodiment of the invention, the roll gap of the open mill is 5-6mm, and the cooling water temperature is 25-30 ℃.
In one embodiment of the present invention, in step 5, the thickness of the rubber sheet after passing through the second rubber pounding of the open mill is 0.5-0.7 mm. And the second open mill returns the ramming rubber for 6-8 times to ensure that the thickness of the rubber sheet reaches 0.5-0.7 mm.
In one embodiment of the present invention, in step 5, the open mill secondary compound temperature is 70-85 ℃. The distance between two rollers of the open mill is 4-5 mm.
In one embodiment of the present invention, in step 5, the temperature of the rubber compound in the kneader is 70-85 ℃. The thickness of the third strip of the open mill is 9-10mm, and the width is 90-100 mm.
In one embodiment of the invention, the production formula comprises the following components in parts by weight: 100 parts of EPDM, 70-180 parts of carbon black, 40-120 parts of calcium carbonate, 70-140 parts of paraffin oil, 5-10 parts of zinc oxide, 5-10 parts of calcium oxide, 1-1.5 parts of vulcanizing agent, 4.5-10 parts of accelerator and 0.4-0.8 part of anti-scorching agent.
In one embodiment of the invention, the foaming agent is added in step 3 in 4-6 parts.
In an embodiment of the invention, the automatic glue turning device is technically connected with the first open mill and the second open mill, and comprises a frame, an annular conveying belt, an air cooling system and a control system, wherein the control system controls the transmission of the annular conveying belt and controls the air cooling system to blow air towards the annular conveying belt, and the annular conveying belt is arranged on the frame. One end of the annular conveying belt is connected with the conveying belt of the first open mill, and the other end of the annular conveying belt is connected with the second open mill. Air coolers are arranged above and below the annular conveying belt, and an exhaust fan is arranged above the glue overturning device, so that the glue can be conveniently and quickly taken away by heat emitted by the glue.
In one embodiment of the invention, after one piece of the open mill is rolled and stripped, the strip is cooled by air for 300 seconds through the automatic glue turning device, and the glue turning speed of the automatic glue turning device is 22-25 m/min.
According to the invention, through the process coordination between the automatic rubber turning device and the three open mills, the temperature stability in the rubber mixing process can be better controlled, so that the rubber material is fully mixed. The process route of the invention can produce the dense glue and the foaming glue at the same time, does not need to make process adjustment, simplifies the production line, reduces the production line cost, and simultaneously improves the quality and the production efficiency of the adhesive tape.
Drawings
FIG. 1 is a schematic diagram of a process route for the production of one embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of the structure of FIG. 1 in accordance with the present invention;
fig. 3 is a sectional view a-a of fig. 2.
Detailed Description
The invention will now be further described with reference to the following examples and figures 1 to 3.
Example 1
The one-step mixing production process of the ethylene propylene diene monomer comprises the following steps: after the automatic weighing preparation of the upper auxiliary machine system of the internal mixer is finished according to the single part of the production formula, the internal mixer starts to feed and mix, the EPDM raw rubber, the zinc oxide and the stearic acid operation auxiliary agent are firstly fed, the upper ram pressure is 40-50 MPa, the rotor rotating speed is 40 r/min, and the mixing lasts for 10 seconds; lifting the top plug, adding carbon black and calcium carbonate, pressing and mixing the plug for 40 seconds, lifting the top plug, adding a vulcanizing agent, an accelerant, calcium oxide and an anti-coking agent, lifting the top plug, mixing the mixture for 40 seconds at the rotor rotating speed of 30 r/min under the pressure of 40-50 MPa, and lifting the top plug to be oiled when the temperature is raised to 80-90 ℃; pressing the top plug for mixing, when the temperature is increased to 110-.
Then, tabletting and strip discharging are carried out in a first open mill 1, the roller distance of the first open mill is 5-6mm, the linear speed is 22.8m/min, the cooling water temperature is 25-30 ℃, air cooling is carried out for 300 seconds through an automatic glue turning device 10, the glue turning speed is 22-25m/min, the temperature is reduced to 70-90 ℃, glue is smashed in a second open mill 2, the roller distance is 4-5mm, the glue material temperature is 70-85 ℃, the glue is smashed back and forth for 6-8 times, the thin through is 0.5-0.7mm, the glue is transferred into a third open mill 3, strip discharging is carried out, the strip discharging thickness is 9-10mm, the width is 90-100mm, and the glue material temperature is 70-85 ℃; the extruded adhesive tape enters a rubber filter 4 for gluing, the temperature of the body of the rubber filter 4 is 40-50 ℃, the temperature of the head is less than or equal to 75 ℃, a filter screen is 80-100 meshes, the extruded adhesive tape enters a rubber cooling line 5 for cooling after being filtered, the temperature of the rubber sheet is less than or equal to 30 ℃ after moisture is dried, the rubber sheet is collected, and the rubber sheet enters a vertical warehouse for standby.
In this embodiment, one end of the automatic glue turning device is linked with the first open mill, and the other end of the automatic glue turning device is linked with the second open mill, the automatic glue turning device includes a frame, an endless conveyor belt, an air cooling system and a control system, the control system controls the transmission of the endless conveyor belt and controls the air cooling system to blow air towards the endless conveyor belt, and the endless conveyor belt is installed on the frame. The glue turning device is provided with an annular conveying belt with the width of 1.8m and the length of 10m, the upper part and the lower part of the annular conveying belt are provided with air coolers, and an exhaust fan is arranged above the glue turning device. Wherein the glue stock comprises the following components in percentage by weight: 100 parts of EPDM raw rubber, 70-180 parts of carbon black, 40-120 parts of filler, 70-140 parts of paraffin oil, 5-10 parts of active zinc oxide, 5-10 parts of calcium oxide, 1-1.5 parts of vulcanizing agent, 4.5-10 parts of accelerator and 0.4-0.8 part of anti-scorching agent.
Example 2
Different from the embodiment 1, the sizing component in the embodiment also comprises 4-6 parts of foaming agent for preparing foaming rubber.
The one-step mixing production process of the ethylene propylene diene monomer comprises the following steps: the internal mixer starts to feed and mix, firstly EPDM raw rubber, zinc oxide and stearic acid operation auxiliary agents are fed, the top bolt pressure is 40-50 MPa, the rotor rotating speed is 40 r/min, and the mixing lasts for 15 seconds; lifting the top plug, adding carbon black and calcium carbonate, pressing and mixing the plug for 45 seconds, lifting the top plug, adding a vulcanizing agent, an accelerant, calcium oxide, a foaming agent and an anti-coking agent, mixing the top plug for 45 seconds at the rotating speed of a rotor of 30 revolutions per minute under the pressure of 40-50 MPa, and when the temperature rises to 80-90 ℃, lifting the top plug and adding oil; pressing the top plug for mixing, lifting the top plug when the temperature is increased to 110-.
Then, tabletting and strip discharging are carried out in a first open mill 1, the roller distance of the first open mill is 5-6mm, the cooling water temperature is 25 ℃, air cooling is carried out for 300 seconds through an automatic glue turning device 10, the glue turning speed is 22-25m/min, the temperature is reduced to 70-90 ℃, glue is smashed in a second open mill 2, the roller distance is 4-5mm, the glue material temperature is 70-85 ℃, the glue is smashed back and forth for 6-8 times, the thin through is 0.5-0.7mm, the glue is turned in a third open mill 3, strip discharging is carried out, the strip discharging thickness is 9-10mm, the width is 90-100mm, and the glue material temperature is 70-85 ℃; the extruded adhesive tape enters a rubber filter 4 for gluing, the temperature of the body of the rubber filter 4 is 40-50 ℃, the temperature of the head is less than or equal to 75 ℃, a filter screen is 80-100 meshes, the extruded adhesive tape enters a rubber cooling line 5 for cooling after being filtered, the temperature of the rubber sheet is less than or equal to 30 ℃ after moisture is dried, the rubber sheet is collected, and the rubber sheet enters a vertical warehouse for standby.
In this embodiment, one end of the automatic glue turning device is linked with the first open mill, and the other end of the automatic glue turning device is linked with the second open mill, the automatic glue turning device includes a frame, an endless conveyor belt, an air cooling system and a control system, the control system controls the transmission of the endless conveyor belt and controls the air cooling system to blow air towards the endless conveyor belt, and the endless conveyor belt is installed on the frame. The glue turning device is provided with an annular conveying belt with the width of 1.8m and the length of 10m, the upper part and the lower part of the annular conveying belt are provided with air coolers, and an exhaust fan is arranged above the glue turning device. The arrangement of the process of the rubber turning device can lead the heat emitted by the rubber material to be quickly taken away, thereby avoiding the rubber material from being burnt early to form particles and influencing the foaming.
According to the invention, through a process route of sweeping, feeding → intelligent weighing → internal mixer mixing → first open-milling-tabletting → automatic glue turning and cooling → second open-milling-glue smashing and thin-passing → third open-milling-strip discharging → glue filtering → glue cooling of glue material on a glue cooling line → material receiving, the glue strip with stable size, smooth surface and less particles of an extruded product is obtained, and meanwhile, the feeding mode and the cooling mode are optimized, so that the production efficiency is improved by about 50%. The automatic rubber turning device is arranged between the first opening and the second opening to rapidly cool the rubber material, so that the early vulcanization of the rubber material is avoided, the particle production and scorching are avoided, the quality of the rubber strip is improved, and the rubber strip is more suitable for the production of foaming rubber.
The one-step method mixing personnel configuration of the invention:
2 feeding, 3 open milling, 1 filtering glue and 1 receiving, and 7 receiving.
Mixing personnel allocation by a traditional two-step method:
smelting A: 2 feeding, 3 open milling, 1 filtering glue and 1 receiving.
B smelting: 1 person for feeding, 2 persons for scouring and 1 person for receiving.
A total of 11 persons.
Compared with the two-step method, the one-step method saves 4 people per shift, can save 8 people per two shifts every day, reduces about 40% of manpower, and greatly saves labor cost.
The one-step method of the invention comprises the following equipment configuration:
1 internal mixer, 3 open mills, 1 rubber filter and 1 cooling line.
The traditional two-step method comprises the following equipment configuration:
smelting A: 1 internal mixer, 3 open mills, 1 rubber filter and 1 cooling line.
B smelting: 1 internal mixer, 2 open mills and 1 cooling line.
Compared with the one-step method and the two-step method, the method comprises the following steps: the preparation of B refining equipment is omitted, and a large amount of power consumption for refining rubber can be saved per kilogram of rubber material.
In conclusion, the one-step method and the traditional two-step method are compared in mixing: the labor, the electricity and the materials can be greatly saved in total every month, and the factory building and the space are saved, thereby having great effect on the production and the operation of enterprises
The above-described embodiments are intended to illustrate rather than to limit the invention, and any changes and alterations made without inventive step within the spirit and scope of the claims are intended to fall within the scope of the invention.
Claims (10)
1. The one-step mixing production process of the ethylene propylene diene monomer is characterized by comprising the following steps of:
step 1: after the automatic weighing preparation of the upper auxiliary machine system of the internal mixer is finished according to the single part of the production formula, the internal mixer starts to feed and mix, firstly, the EPDM, the zinc oxide and the stearic acid are fed, the top bolt pressure is 40-50 MPa, and the mixing is carried out for 10-15 seconds;
step 2: lifting the top plug, adding carbon black and calcium carbonate, and pressing and mixing for 40-45 seconds;
and step 3: raising the top plug, adding a vulcanizing agent, an accelerant, calcium oxide and an anti-coking agent, mixing for 40-45 seconds under the pressure of 40-50 MPa;
and 4, step 4: when the temperature rises to 80-90 ℃, the top plug is lifted, paraffin oil is added, the top plug is pressed for mixing, when the temperature rises to 110 ℃, the top plug is lifted, the mixing lasts for 10-15 seconds, and the top plug is pressed for mixing; when the temperature is raised to 110-125 ℃;
and 5: discharging the materials by an internal mixer, tabletting and discharging the materials in a first open mill, cooling the materials by an automatic rubber turning device, transferring the materials into a second open mill to smash the materials when the temperature is reduced to 70-90 ℃, transferring the materials into a third open mill to thin and discharge the materials;
step 6: the adhesive tape enters a rubber filter for gluing, and enters a glue cooling line for cooling after being filtered.
2. The one-step mixing production process of ethylene propylene diene monomer rubber according to claim 1, wherein in step 6, the rubber is filtered in a rubber filter, the temperature of the rubber filter body is 40-50 ℃, the temperature of a machine head is less than or equal to 75 ℃, a filter screen is 80-100 meshes, the rubber is cooled in a rubber cooling line after being filtered, the temperature of a rubber sheet is less than or equal to 30 ℃ after moisture is dried, the rubber sheet is collected, and the rubber sheet enters a vertical warehouse for standby.
3. The one-step mixing production process of ethylene propylene diene monomer rubber as claimed in claim 1, wherein in step 5, the roll gap of the open mill is 5-6mm, and the cooling water temperature is 25-30 ℃.
4. The one-step mixing production process of ethylene propylene diene monomer rubber as claimed in claim 1, wherein in step 5, the thickness of the rubber sheet after the second rubber pounding and passing through the open mill is 0.5-0.7 mm.
5. The one-step mixing production process of ethylene propylene diene monomer rubber as claimed in claim 4, wherein in step 5, the temperature of the secondary rubber material of the open mill is 70-85 ℃, and the roller spacing is 4-5 mm.
6. The one-step mixing production process of ethylene propylene diene monomer rubber as claimed in claim 1, wherein in step 5, the temperature of the three rubber compounds of the open mill is 70-85 ℃.
7. The one-step mixing production process of ethylene propylene diene monomer according to any one of claims 1 to 6, wherein the production formula comprises the following components in parts by weight: 100 parts of EPDM, 70-180 parts of carbon black, 40-120 parts of calcium carbonate, 70-140 parts of paraffin oil, 5-10 parts of zinc oxide, 5-10 parts of calcium oxide, 1-1.5 parts of vulcanizing agent, 4.5-10 parts of accelerator and 0.4-0.8 part of anti-scorching agent.
8. The one-step mixing production process of ethylene propylene diene monomer according to claim 7, further comprising 4-6 parts of a foaming agent, wherein the foaming agent is added in the step 3.
9. The one-step mixing production process of ethylene propylene diene monomer according to claim 1, wherein the automatic rubber overturning device is sequentially connected with the first open mill and the second open mill, the automatic rubber overturning device comprises a frame, an endless conveyor belt, an air cooling system and a control system, the control system controls transmission of the endless conveyor belt and controls the air cooling system to blow air towards the endless conveyor belt, and the endless conveyor belt is mounted on the frame.
10. The one-step mixing production process of ethylene propylene diene monomer rubber as claimed in claim 9, wherein the rubber turning speed of the automatic rubber turning device is 22-25m/min after the strip is discharged from the first sheet of the open mill for 200 seconds and the air cooling is carried out for 300 seconds.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110164250.9A CN112959532A (en) | 2021-02-05 | 2021-02-05 | One-step mixing production process of ethylene propylene diene monomer |
| PCT/CN2021/094893 WO2022166035A1 (en) | 2021-02-05 | 2021-05-20 | One-step mixing production process for ethylene-propylene-diene monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110164250.9A CN112959532A (en) | 2021-02-05 | 2021-02-05 | One-step mixing production process of ethylene propylene diene monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112959532A true CN112959532A (en) | 2021-06-15 |
Family
ID=76274800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110164250.9A Pending CN112959532A (en) | 2021-02-05 | 2021-02-05 | One-step mixing production process of ethylene propylene diene monomer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112959532A (en) |
| WO (1) | WO2022166035A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505215A (en) * | 2022-10-28 | 2022-12-23 | 江西奋发科技有限公司 | Low-smoke halogen-free flame-retardant rubber strip and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370065A (en) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | A kind of weather strip for automobile rubber compound of one-step method continuous mixing and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005023320A1 (en) * | 2005-05-17 | 2006-11-30 | Gummiwerk Kraiburg Gmbh & Co. Kg | Composite component of thermosetting resins and elastomers, process for the preparation and use of such a composite part |
| CN101935422A (en) * | 2010-08-31 | 2011-01-05 | 湖北诺克橡塑密封科技有限公司 | One-step sulphurating rubber-refining method |
-
2021
- 2021-02-05 CN CN202110164250.9A patent/CN112959532A/en active Pending
- 2021-05-20 WO PCT/CN2021/094893 patent/WO2022166035A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370065A (en) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | A kind of weather strip for automobile rubber compound of one-step method continuous mixing and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 橡胶工业原材料与装备简明手册编审委员会，北京理工大学出版社: "《橡胶工业原材料与装备简明手册》" * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022166035A1 (en) | 2022-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109370065B (en) | Rubber compound for automobile sealing strip continuously mixed by one-step method and preparation method thereof | |
| CN205393168U (en) | Building waste recycling and reutilizing device | |
| CN112959532A (en) | One-step mixing production process of ethylene propylene diene monomer | |
| CN107379114A (en) | A kind of magnetic attraction damping fin magnetizes and blanking units and its production technology | |
| CN110897190B (en) | Production process of tobacco sheets by rolling method | |
| CN113251406A (en) | Diversified biomass utilization device | |
| CN217531453U (en) | Rubber mixing and sheet discharging processing system | |
| CN110332800B (en) | Multifunctional electromagnetic smelting chamber for inoculant and working method thereof | |
| CN108424551B (en) | Composite rubber | |
| CN101332683A (en) | Briquette roll type granulator | |
| CN1168359A (en) | Sintered gangue brick and its production process | |
| CN107351184A (en) | A kind of hot-melt damping piece cooling and blanking units and its production method | |
| CN110296608B (en) | A fragmentation and cooling device for calcium oxide | |
| CN110549483A (en) | Production process of traditional grey brick and grey tile building material | |
| CN109053107B (en) | Brick making process by recycling construction waste | |
| CN2351197Y (en) | Full-automatic control horizontal three-roller flour mill | |
| CN207105111U (en) | A kind of hot-melt damping piece punching press cutting means | |
| CN113045829A (en) | O-shaped ring material for electric automobile motor and preparation method thereof | |
| CN108043512B (en) | Automatic grinding machine suitable for online grinding of magnetic sheets in XY direction and implementation method thereof | |
| CN219705764U (en) | Rubber particle cooling device for tire production | |
| CN201760981U (en) | Open mill | |
| CN110669265A (en) | High-performance rubber composition for tire side and preparation method thereof | |
| CN219765029U (en) | Batching machine for quartz stone plate production | |
| CN217164539U (en) | Raw material roll squeezer finish grinding device for cement manufacture | |
| CN217829920U (en) | Vertical kiln cement raw material beading machine |
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 |