CN109760244A - A kind of polyurethane pours 50A applicator roll technique - Google Patents
A kind of polyurethane pours 50A applicator roll technique Download PDFInfo
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- CN109760244A CN109760244A CN201910031222.2A CN201910031222A CN109760244A CN 109760244 A CN109760244 A CN 109760244A CN 201910031222 A CN201910031222 A CN 201910031222A CN 109760244 A CN109760244 A CN 109760244A
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- reaction kettle
- applicator roll
- polyurethane
- reaction
- pours
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Abstract
The present invention proposes that a kind of polyurethane pours 50A applicator roll technique, the following steps are included: carry out surface clean to metal roller core, derust and deoxygenate compound processing and in coating adhesive, control A reaction kettle for negative pressure state, and A reaction kettle connect with B reaction kettle to polyurethane casting machine, performed polymer is prepared, feeds intake, deaeration processing, casting processing, cleaning A reaction kettle and B reaction kettle and desulfurization process and finishing is handled；The present invention is respectively used to performed polymer heating reaction by using two reaction kettles and carries out reacting between plasticizer and curing agent, it can guarantee the quality of performed polymer, guarantee that free diisocyanate monomer content is lower in performed polymer, structure is more regular, it can guarantee that reaction temperature is individually controllable using two reaction kettles simultaneously, reaction process stability is high, avoids material temperature and controls and improper former material is caused to waste serious problem, processing benefit maximization is realized, and properties of product are secure.
Description
Technical field
The present invention relates to rubber roller manufacturing fields more particularly to a kind of polyurethane to pour 50A applicator roll technique.
Background technique
It is damageable spare parts that coating, which produces mid-rubber roll, and rubber roller long period of soaking is in the coating that organic solvent is prepared, in a level pressure
By the twisting action sheared under power, the material phase mutual friction to be coated advanced with high speed still has to keep good in this condition
Solvent resistance, the performance for keeping volume expansion small as far as possible, deflection need small and still maintain certain after uniform, reprocessabilty
Intensity and hardness and there are the characteristics such as good wellability to coating, only polyurethane rubber roller can under such exacting terms
To meet.
Existing polyurethane hand dropping 50A applicator roll is asked there is properties of product caused by hand dropping are unstable
Topic, while working procedure is many and diverse, and not can guarantee and material temperature volume is controlled, and there are former materials to waste serious ask
Topic, therefore, the present invention proposes that a kind of polyurethane pours 50A applicator roll technique, to solve shortcoming in the prior art.
Summary of the invention
In view of the above-mentioned problems, the present invention is respectively used to performed polymer heating reaction by using two reaction kettles and is plasticized
Reacting between agent and curing agent, it is ensured that the quality of performed polymer guarantees the diisocyanate monomer content that dissociates in performed polymer
Lower, structure is more regular, while can guarantee that reaction temperature is individually controllable using two reaction kettles, and reaction process stability is high,
Avoid material temperature control it is improper cause former material to waste serious problem, realize processing benefit maximization, and properties of product
It is secure.
The present invention proposes that a kind of polyurethane pours 50A applicator roll technique, comprising the following steps:
Step 1: the pretreatment of metal roller core carries out surface clean to metal roller core, derusts and deoxygenates compound processing and in metal
The suitable adhesive of roller core surface coating；
Step 2: two reaction kettles of selection are successively labeled as A reaction kettle and B reaction kettle, and control in A reaction kettle as negative pressure shape
State, and A reaction kettle is connected into polyurethane casting machine by pipeline with B reaction kettle；
Step 3: preparing performed polymer, carries out the polyurethane for being used to prepare performed polymer and excessive diisocyanate according to formula
The performed polymer of 50A applicator roll is prepared in addition reaction；
Step 4: after the pretreatment of metal roller core, the performed polymer for the 50A applicator roll prepared is put into A using the negative pressure of A reaction kettle
In reaction kettle, the plasticizer of specified amount then is added into B reaction kettle and curing agent is reacted；
Step 5: while to progress deaeration processing in A reaction kettle and B reaction kettle；
Step 6: after deaeration processing, the flow velocity of A reaction kettle and B reaction kettle is measured respectively according to formulation ratio, by A reaction kettle and B
The raw material of reaction kettle imports in polyurethane casting machine, strictly grasps polyurethane casting machine further according to the processing request of 50A applicator roll
Pouring temperature, when pouring using hose be put into mold directly by reaction kettle A reaction kettle and B reaction kettle raw material import mold
It is poured, obtains 50A applicator roll；
Step 7: at once shutting down polyurethane casting machine after casting, then will be full of nitrogen in A reaction kettle under vacuum conditions
Gas is cleaned, and mixed curing agent discharge in B reaction kettle is sealed preservation；
Step 8: 50A applicator roll will be obtained in step 6 and carries out desulfurization process and finishing processing, finished product 50A applicator roll is made.
Further improvement lies in that: cleaning solvent or trichloro ethylene are used when cleaning metallic roll wicking surface in the step 1
Remove the organic substance that greasy dirt, lubricant and the metal association of metallic roll wicking surface generate.
Further improvement lies in that: using blasting treatment when derusting and deoxygenate compound in the step 1, root when blasting treatment
The abrasive material that size fractionated should be selected according to the difference of metallic roll core material, also needs using solvent after blasting treatment to metal roller core table
The residual dust in face is purged.
Further improvement lies in that: it, should be according to gold in the step 1 in the suitable adhesive of metallic roll wicking surface coating
The difference for belonging to roller core material selects corresponding adhesive, should be under 40~45 degrees Celsius of dry environment after adhesive coating
It is dried 20~30 minutes, is then carried out in 10~15 degrees Celsius of dry environment standing 1~1.1 hour.
Further improvement lies in that: in the step 2 in A reaction kettle door negative pressure state pressure be -0.095Mpa~-
0.12Mpa。
Further improvement lies in that: in the step 4 after the pretreatment of metal roller core, by the pre-polymerization for the 50A applicator roll prepared
Body is put into A reaction kettle using the negative pressure of A reaction kettle, and A reactor temperature is increased to 75~100 degrees Celsius, then to B
The plasticizer and curing agent of specified amount are added in reaction kettle, and B reactor temperature is increased to 110~120 degrees Celsius of progress
Reaction.
Further improvement lies in that: deaeration processing pressure 6.8x10 in the step 5-1Kpa, deaeration handle the time be 30~
60 minutes.
Further improvement lies in that: the operation of polyurethane casting machine casting applicator roll should be after blasting treatment in the step 6
4~72 hours in carry out.
Further improvement lies in that: the mold in the step 6 for casting needs to carry out the pre-heat treatment before casting, in advance
The temperature of heat treatment needs consistent with pouring temperature.
The invention has the benefit that being respectively used to performed polymer heating reaction by using two reaction kettles and being plasticized
Reacting between agent and curing agent, it is ensured that the quality of performed polymer guarantees the diisocyanate monomer content that dissociates in performed polymer
Lower, structure is more regular, while can guarantee that reaction temperature is individually controllable using two reaction kettles, and reaction process stability is high,
Avoid material temperature control it is improper cause former material to waste serious problem, by after casting using be filled with nitrogen cleaning
The operation of A reaction kettle can effectively liberate labour's consumption that artificial cleaning generates, and cleaning effect is good, at the same pass through by
Mixed curing agent discharge, which is sealed preservation, in B reaction kettle can effectively save cost, realize processing benefit maximization, and
Properties of product are secure.
Detailed description of the invention
Fig. 1 is present invention process flow diagram.
Specific embodiment
In order to realize invention technological means, reach purpose and effect is easy to understand, below with reference to specific implementation
Mode, the present invention is further explained.
According to Fig. 1, the present embodiment proposes that a kind of polyurethane pours 50A applicator roll technique, comprising the following steps:
Step 1: the pretreatment of metal roller core carries out surface clean to metal roller core, derusts and deoxygenates compound processing and in metal
The suitable adhesive of roller core surface coating, removes the oil of metallic roll wicking surface using cleaning solvent when cleaning metallic roll wicking surface
The organic substance that dirty, lubricant and metal association generate, uses blasting treatment when derusting and deoxygenate compound, root when blasting treatment
The abrasive material that size fractionated should be selected according to the difference of metallic roll core material, also needs using solvent after blasting treatment to metal roller core table
The residual dust in face is purged, should be according to metallic roll core material not in the suitable adhesive of metallic roll wicking surface coating
With selecting corresponding adhesive, adhesive that should be dried 25 minutes after coating under 45 degrees Celsius of dry environment, so
It carries out standing 1 hour in 12 degrees Celsius of dry environment afterwards；
Step 2: two reaction kettles of selection are successively labeled as A reaction kettle and B reaction kettle, and control in A reaction kettle as negative pressure shape
State, negative pressure state pressure is~0.1Mpa, and A reaction kettle is connected polyurethane casting machine by pipeline with B reaction kettle；
Step 3: preparing performed polymer, carries out the polyurethane for being used to prepare performed polymer and excessive diisocyanate according to formula
The performed polymer of 50A applicator roll is prepared in addition reaction；
Step 4: after the pretreatment of metal roller core, the performed polymer for the 50A applicator roll prepared is put into A using the negative pressure of A reaction kettle
In reaction kettle, and A reactor temperature is increased to 90 degrees Celsius, then into B reaction kettle be added specified amount plasticizer and
Curing agent, and B reactor temperature is increased to 115 degrees Celsius and is reacted；
Step 5: while to progress deaeration processing, deaeration processing pressure 6.8x10 in A reaction kettle and B reaction kettle-1Kpa, deaeration
Handling the time is 50 minutes；
Step 6: after deaeration processing, the flow velocity of A reaction kettle and B reaction kettle is measured respectively according to formulation ratio, by A reaction kettle and B
The raw material of reaction kettle imports in polyurethane casting machine, strictly grasps polyurethane casting machine further according to the processing request of 50A applicator roll
Pouring temperature, when pouring using hose be put into mold directly by reaction kettle A reaction kettle and B reaction kettle raw material import mold
Be poured, obtain 50A applicator roll, polyurethane casting machine be poured applicator roll operation should in 50 hours after blasting treatment into
Row, mold need to carry out before casting the pre-heat treatment, and the temperature of the pre-heat treatment needs consistent with pouring temperature；
Step 7: at once shutting down polyurethane casting machine after casting, then will be full of nitrogen in A reaction kettle under vacuum conditions
Gas is cleaned, and mixed curing agent discharge in B reaction kettle is sealed preservation；
Step 8: 50A applicator roll will be obtained in step 6 and carries out desulfurization process and finishing processing, finished product 50A applicator roll is made.
Performed polymer heating reaction is respectively used to by using two reaction kettles and is carried out anti-between plasticizer and curing agent
It answers, it is ensured that the quality of performed polymer guarantees that free diisocyanate monomer content is lower in performed polymer, and structure is more regular, together
Two reaction kettles of Shi Caiyong can guarantee that reaction temperature is individually controllable, and reaction process stability is high, avoid material temperature control
It is improper that former material is caused to waste serious problem, by used after casting be filled with nitrogen clean the operation of A reaction kettle can be with
Labour's consumption that the effective artificial cleaning of liberation generates, and cleaning effect is good, while by will be mixing cured in B reaction kettle
Agent discharge, which is sealed preservation, can effectively save cost, realize processing benefit maximization, and properties of product are secure.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (9)
1. a kind of polyurethane pours 50A applicator roll technique, which comprises the following steps:
Step 1: the pretreatment of metal roller core carries out surface clean to metal roller core, derusts and deoxygenates compound processing and in metal
The suitable adhesive of roller core surface coating；
Step 2: two reaction kettles of selection are successively labeled as A reaction kettle and B reaction kettle, and control in A reaction kettle as negative pressure shape
State, and A reaction kettle is connected into polyurethane casting machine by pipeline with B reaction kettle；
Step 3: preparing performed polymer, carries out the polyurethane for being used to prepare performed polymer and excessive diisocyanate according to formula
The performed polymer of 50A applicator roll is prepared in addition reaction；
Step 4: after the pretreatment of metal roller core, the performed polymer for the 50A applicator roll prepared is put into A using the negative pressure of A reaction kettle
In reaction kettle, the plasticizer of specified amount then is added into B reaction kettle and curing agent is reacted；
Step 5: while to progress deaeration processing in A reaction kettle and B reaction kettle；
Step 6: after deaeration processing, the flow velocity of A reaction kettle and B reaction kettle is measured respectively according to formulation ratio, by A reaction kettle and B
The raw material of reaction kettle imports in polyurethane casting machine, strictly grasps polyurethane casting machine further according to the processing request of 50A applicator roll
Pouring temperature, when pouring using hose be put into mold directly by reaction kettle A reaction kettle and B reaction kettle raw material import mold
It is poured, obtains 50A applicator roll；
Step 7: at once shutting down polyurethane casting machine after casting, then will be full of nitrogen in A reaction kettle under vacuum conditions
Gas is cleaned, and mixed curing agent discharge in B reaction kettle is sealed preservation；
Step 8: 50A applicator roll will be obtained in step 6 and carries out desulfurization process and finishing processing, finished product 50A applicator roll is made.
2. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 1
Using cleaning solvent or greasy dirt, lubricant and the gold of trichloro ethylene removal metallic roll wicking surface when cleaning metallic roll wicking surface
Belong to the organic substance that association generates.
3. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 1
Using blasting treatment when derusting and deoxygenate compound, size fractionated should be selected according to the difference of metallic roll core material when blasting treatment
Abrasive material also needs to be purged using residual dust of the solvent to metallic roll wicking surface after blasting treatment.
4. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 1
In the suitable adhesive of metallic roll wicking surface coating, corresponding adhesive should be selected according to the difference of metallic roll core material, glued
Mixture should be dried 20~30 minutes after coating under 40~45 degrees Celsius of dry environment, then Celsius 10~15
It is carried out in the dry environment of degree standing 1~1.1 hour.
5. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: A in the step 2
The negative pressure state pressure of door is -0.095Mpa~-0.12Mpa in reaction kettle.
6. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 4
After the pretreatment of metal roller core, the performed polymer for the 50A applicator roll prepared is put into A reaction kettle using the negative pressure of A reaction kettle, and
A reactor temperature is increased to 75~100 degrees Celsius, the plasticizer and curing agent of specified amount are then added into B reaction kettle,
And B reactor temperature is increased to 110~120 degrees Celsius and is reacted.
7. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 5
Deaeration processing pressure 6.8x10-1Kpa, deaeration processing time are 30~60 minutes.
8. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 6
The operation of polyurethane casting machine casting applicator roll should carry out in 4~72 hours after blasting treatment.
9. a kind of polyurethane according to claim 1 pours 50A applicator roll technique, it is characterised in that: in the step 6
Mold for casting needs to carry out before casting the pre-heat treatment, and the temperature of the pre-heat treatment needs consistent with pouring temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910031222.2A CN109760244A (en) | 2019-01-14 | 2019-01-14 | A kind of polyurethane pours 50A applicator roll technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910031222.2A CN109760244A (en) | 2019-01-14 | 2019-01-14 | A kind of polyurethane pours 50A applicator roll technique |
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| CN109760244A true CN109760244A (en) | 2019-05-17 |
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ID=66452798
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| CN201910031222.2A Pending CN109760244A (en) | 2019-01-14 | 2019-01-14 | A kind of polyurethane pours 50A applicator roll technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716609A (en) * | 2020-07-08 | 2020-09-29 | 常州佳冠电子有限公司 | Pouring equipment and pouring process for capacitor epoxy resin |
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| CN102505555A (en) * | 2011-11-10 | 2012-06-20 | 广州海丝尔橡塑科技有限公司 | High-speed polyurethane papermaking rubber covered roller, preparation method thereof and application |
| CN102807665A (en) * | 2012-08-27 | 2012-12-05 | 马鞍山市天鑫辊业有限责任公司 | Low-hardness pouring polyurethane rubber roller and production method thereof |
| CN102814888A (en) * | 2012-08-29 | 2012-12-12 | 广州华工百川科技股份有限公司 | Metal composite delivery pipe with polyurethane elastomer lining and manufacturing method and application of metal composite delivery pipe |
| CN102825808A (en) * | 2012-08-30 | 2012-12-19 | 江苏双达工程技术研究中心有限公司 | Processing technology of nanoscale polyurethane composite steel tube |
-
2019
- 2019-01-14 CN CN201910031222.2A patent/CN109760244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505555A (en) * | 2011-11-10 | 2012-06-20 | 广州海丝尔橡塑科技有限公司 | High-speed polyurethane papermaking rubber covered roller, preparation method thereof and application |
| CN102807665A (en) * | 2012-08-27 | 2012-12-05 | 马鞍山市天鑫辊业有限责任公司 | Low-hardness pouring polyurethane rubber roller and production method thereof |
| CN102814888A (en) * | 2012-08-29 | 2012-12-12 | 广州华工百川科技股份有限公司 | Metal composite delivery pipe with polyurethane elastomer lining and manufacturing method and application of metal composite delivery pipe |
| CN102825808A (en) * | 2012-08-30 | 2012-12-19 | 江苏双达工程技术研究中心有限公司 | Processing technology of nanoscale polyurethane composite steel tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716609A (en) * | 2020-07-08 | 2020-09-29 | 常州佳冠电子有限公司 | Pouring equipment and pouring process for capacitor epoxy resin |
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Application publication date: 20190517 |