CN101929586B - Cooling water pipe for electric vehicle and production technology thereof - Google Patents
Cooling water pipe for electric vehicle and production technology thereof Download PDFInfo
- Publication number
- CN101929586B CN101929586B CN2010102571926A CN201010257192A CN101929586B CN 101929586 B CN101929586 B CN 101929586B CN 2010102571926 A CN2010102571926 A CN 2010102571926A CN 201010257192 A CN201010257192 A CN 201010257192A CN 101929586 B CN101929586 B CN 101929586B
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- weight portions
- rubber
- cooling water
- pipe
- water pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
Abstract
The invention discloses a cooling water pipe for electric vehicle and production technology thereof, wherein a rubber pipe consists of an inner rubber layer, a fiber line reinforcement layer and an outer rubber layer from inside outwards. The cooling water pipe is prepared by the following steps of: (1) feeding rubber components of the inner and outer rubber layers into an internal mixer to mix the rubber components; (2) performing a fast testing on the semi-finished rubber after the rubber components are mixed; (3) putting the rubber into a 90 extruder with a straight machine head to extrude the inner rubber layer; (4) knitting a fiber line reinforcement layer on the extruded rubber layer of the inner pipe by using a knitter; (5) on the 90 extruder, extruding the semi-product in the step(4) out of the outer rubber layer by using a T-shaped machine head; (6) cutting the rubber pipe off and vulcanizing the pipe in a steam cylinder; (7) washing the rubber pipe and cutting the head of rubber pipe; and (8) performing injection molding and fast connecting the head to obtain the finished product. The production technology is simplified, the cost is saved and the operation is more convenient; meanwhile, the bonding is firm and the quality of product is good.
Description
Technical field
The present invention relates to the auto parts machinery field, specifically is a kind of cooling water pipe and production technology thereof that is used for electric automobile.
Background technology
Since expanding economy, the raising of people's living standard, and automobile has become one of vehicles of people.Improving constantly of Along with people's environmental consciousness, awareness of saving energy, and the rising steadily of global oil price, auto industry is sought the alternative energy.The low-carbon environment-friendly automobile becomes a kind of alternative middle vehicle, and electric automobile is as the vehicle of low-carbon environment-friendly economy, will be after the direction of automobile industry development.Cooling system at electric automobile has comprised radiator cooling system and engine-cooling system; Wherein used a lot of cooling water pipes, as between engine and the radiator, between radiator and the water pump, between water pump and the oil cooler, between oil cooler and the radiator.
When the formula of rubber hose design of cooling water pipe, consider and performances such as cooling fluid and anti-electrooptics that especially anti-electrooptics performance is the distinctive performance of electric automobile cooling water pipe.In other words, the cooling water pipe inwall has coolant flow, so the necessary cold-resistant but liquid medium of glue in the water pipe; Sebific duct is through certain current testing, and whether the checking sizing material ftractures or sizing material becomes the obstruction that granule causes system after whether separating.In addition, also will carry out an oil-proof varnish property test, promptly in order to verify the prescription of sebific duct, sizing material is wanted media such as heat-resisting water, anti-cooling fluid, and whether sizing material becomes the microwave particle for a long time under the effect of high temperature or cooling fluid, thereby causes performance decrease.
Traditional cooling water pipe is normally processed by sebific duct, and the employed material of its glue-line is generally ethylene propylene diene rubber, and sulfide is sulphur.If but this sizing material is used for the cooling system of electric automobile, just exist to lack anti-cooling fluid and anti-electrooptics performance.Therefore, become granule after sizing material inwall easy of crack or the sizing material easy separation, thereby cause the obstruction of cooling system.
In addition, the technological process of production of existing cooling water pipe is: the sizing material heat refining that mating gets togather → through extruder extrude inner glue layer → send into carry out in the vulcanizing tank semi-cure → carrying out fiber twine in kiss-coating starch → send hothouse drying → glue-line outside T type extruder puts → send in the vulcanizing tank once more and vulcanize → clean → cut → test package puts in storage.But this technological process of production is complicated, and operation is more, correspondingly increases production cost; Simultaneously, kiss-coating is starched the product that this technology obtains when carrying out the fiber winding, its outer glue and fibrolaminar bonding insecure, thus cause poor product quality.
Summary of the invention
Technical problem to be solved by this invention is, a kind of anti-cooling fluid and anti-electrooptics performance are provided, thereby avoids occurring the glue-line cracking or separate producing the microwave particle and agreeing with the cooling water pipe that is used for electric automobile of the clogging of system.
For solving the problems of the technologies described above; The cooling water pipe that is used for electric automobile provided by the invention; Comprise the cooling water pipe that rubber is processed, pipe rubber layer, single enhancement layer and outer tube rubber layer in its sebific duct is followed successively by from inside to outside, described inner and outer pipe rubber layer comprises following component:
Ethylene propylene diene rubber 100 weight portions
Peroxide vulcanizing agent 5 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 1.5 weight portions
Add up to: 203 weight portions
Adopt the sebific duct of this component, utilize the hear resistance of peroxide vulcanizing agent to improve hear resistance shortening cure time, in other words; The heat resisting temperature of the sebific duct of traditional use sulfur cross-linking is 150 degree, is 170 degree and use the heat resisting temperature of the sebific duct of peroxide cure, simultaneously; The required time of traditional sulfur cross-linking is 40 minutes; And with the required time of peroxide cure be 20 minutes, enhance productivity greatly, save production cost.
As improvement, described single enhancement layer is the aramid line layer.Adopting this material as enhancement layer, is the characteristic that intensity is high, percentage elongation is little, the pulse performance is good of giving full play to aramid line, makes the intensity of cooling water pipe higher.
As further improvement, an end of described cooling water pipe has the snap joint that plastics are processed, and described snap joint and cooling water pipe are one.Described snap joint can be two pass joints, also can be three-way connection.After adopting this structure, owing to had snap joint in the end of cooling water pipe, and snap joint and cooling water pipe are one; Therefore; The position that when assembling, only needs snap joint to be connected required connection gets final product, and dwindles installing space greatly, also makes and installs easily; Simultaneously, the integral structure of snap joint and cooling water pipe has avoided the junction that the phenomenon of leaking takes place.
Another technical problem to be solved by this invention is, provides that a kind of production technology is simple, cost is low, the production technology of the cooling water pipe that is used for autonomous driving vehicle of good product quality.
For solving the problems of the technologies described above, the production technology that is used for the cooling water pipe of electric automobile provided by the invention, it may further comprise the steps:
1. by following component sizing material is sent into mixer mixing;
The component of said sizing material is:
Ethylene propylene diene rubber 100 weight portions
Peroxide vulcanizing agent 5 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 1.5 weight portions
Add up to: 203 weight portions
2. the sizing material after the banburying is carried out fast seizure test, specify index parameter to control Mooney viscosity, the time of scorch of sizing material, so that rubber and bonding with aramid line in the expressing technique in the operation of back;
3. 90 extruders of sizing material being put into straight type head are extruded inner glue layer;
4. knitting machine knitted fibers line enhancement layer on the interior pipe rubber layer of extruding of selecting the respective needle number according to the internal diameter and the external diameter of pipe obtains semi-finished product;
5. glue-line outside extruding outside the semi-finished product that 4. step obtains with T type head on 90 extruders;
6. sebific duct cuts off, the digester (-tor) sulfuration;
7. sebific duct washs, cuts head, obtains sebific duct;
8. on plastic injection equipment with snap joint in the injection moulding in the sebific duct end, obtain finished product.
The 1. middle sizing material of described step adopts reverse method of mixing; Adopt the rotor speed of 15～20RPM; The inflow temperature of cooling water is controlled at below 20 ℃; Plastic emitting temperature after mixing is 120 ℃～130 ℃, can allow filler and auxiliary agent under the mechanism of rotor, to mix in advance, and vulcanizing agent adds at last.
Described step 3. in the head temperature of straight type head be that 65 ℃, the temperature of spout are that 45 ℃, the external diameter of interior pipe are 5-60mm.
The described step 4. pitch of middle knitting machine is 3-5mm.
Described step 5. in the head temperature of T type head be that 70 ℃, the temperature of spout are that 45 ℃, the external diameter of outer tube are 10-80mm.
Described cure time is 20 minutes.
After adopting above-described production technology, the present invention compared with prior art has the following advantages:
1) because sebific duct after extruder is extruded inner glue layer, directly carries out the single winding, need not hanging and drying process; Wrap wire is direct and inner glue layer is bonding, and glue-line outside directly on fiber-reinforced layer, extruding through extruder more directly reaches bonding effect; Therefore simplified production technology; Practiced thrift cost, simultaneously bonding firm, good product quality;
2) step 1. in sizing material adopt reverse method of mixing to mix, be to prevent the overheated incipient scorch of sizing material, can allow the mixing in advance under the mechanism of rotor of filler and auxiliary agent, can not cause the rising of temperature like this; Peroxide vulcanizing agent adds at last, is to prolong mixing time to obtain best melting effect, and like this, the sizing material after the banburying has the good compression stress releasing property, in multiple fluid, uses the back to keep good penetration property through the long period.
Description of drawings
Fig. 1 is the cross section structure sketch map that the present invention is used for the cooling water pipe sebific duct of electric automobile;
Fig. 2 is the structural representation that invention is used for the cooling water pipe of electric automobile.
Wherein: 1, cooling water pipe; 2, snap joint; 3, interior pipe rubber layer; 4, single enhancement layer; 5, outer tube rubber layer.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done explanation in further detail.
The structural representation that is used for the cooling water pipe of electric automobile by Fig. 1, the present invention shown in Figure 2 can be known; It comprises the cooling water pipe 1 that rubber is processed; Pipe rubber layer 3, single enhancement layer 4 and outer tube rubber layer 5 in its sebific duct is followed successively by from inside to outside, described inner and outer pipe rubber layer comprises following component:
Ethylene propylene diene rubber 100 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 1.5 weight portions
Add up to: 203 weight portions
Described single enhancement layer 4 is aramid line layers.
One end of described cooling water pipe 1 has the snap joint 2 that plastics are processed, and described snap joint 2 is one with cooling water pipe 1.Described snap joint 2 can be two pass joints, also can be three-way connection, and it is fixed that this can come according to the actual installation needs.
The present invention is used for the production technology of the cooling water pipe of electric automobile, and it may further comprise the steps:
1. by following component sizing material is sent into mixer mixing;
The component of said sizing material is:
Ethylene propylene diene rubber 100 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 1.5 weight portions
Add up to: 203 weight portions
2. the sizing material after the banburying is carried out fast seizure test, specify index parameter to control Mooney viscosity, the time of scorch of sizing material;
3. 90 extruders of sizing material being put into straight type head are extruded inner glue layer;
4. knitting machine knitted fibers line enhancement layer on the interior pipe rubber layer of extruding of selecting the respective needle number according to the internal diameter and the external diameter of pipe obtains semi-finished product;
5. glue-line outside extruding outside the semi-finished product that 4. step obtains with T type head on 90 extruders;
6. sebific duct cuts off, the digester (-tor) sulfuration;
7. sebific duct washs, cuts head, obtains sebific duct;
8. on plastic injection equipment with snap joint in the injection moulding in the sebific duct end, obtain finished product.
The 1. middle sizing material of described step adopts reverse method of mixing; Adopt the rotor speed of 15～20RPM; The inflow temperature of cooling water is controlled at below 20 ℃; Plastic emitting temperature after mixing is 120 ℃～130 ℃, can allow filler and auxiliary agent under the mechanism of rotor, to mix in advance, and vulcanizing agent adds at last.
Described step 3. in the head temperature of straight type head be that 65 ℃, the temperature of spout are that 45 ℃, the external diameter of interior pipe are 5-60mm.
The described step 4. pitch of middle knitting machine is 3-5mm.
Described step 5. in the head temperature of T type head be that 70 ℃, the temperature of spout are that 45 ℃, the external diameter of outer tube are 10-80mm.
Described cure time is 20 minutes.
Claims (2)
1. cooling water pipe that is used for electric automobile; Comprise the cooling water pipe (1) that rubber is processed; Pipe rubber layer (3), single enhancement layer (4) and outer tube rubber layer (5) in its sebific duct is followed successively by from inside to outside, it is characterized in that: described inner and outer pipes rubber layer comprises following component:
Ethylene propylene diene rubber 100 weight portions
Peroxide vulcanizing agent 5 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 1.5 weight portions
Add up to: 203 weight portions;
Described single enhancement layer (4) is the aramid line layer;
One end of described cooling water pipe (1) has the snap joint (2) that plastics are processed, and described snap joint (2) is one with cooling water pipe (1);
Described snap joint (2) is two pass joints or three-way connection.
2. production technology that is used for the cooling water pipe of electric automobile, it is characterized in that: it may further comprise the steps:
1. by following component sizing material is sent into mixer mixing;
The component of said sizing material is:
Ethylene propylene diene rubber 100 weight portions
Peroxide vulcanizing agent 5 weight portions
Crosslinking agent TAIC 2.5 weight portions
Anti-aging agent RD 2 weight portions
Reinforcing agent 550 80 weight portions
Plasticizer 2,250 12 weight portions
Stearic 2 weight portions
Add up to: 203 weight portions
2. the sizing material after the banburying is carried out fast seizure test, specify index parameter to control Mooney viscosity, the time of scorch of sizing material;
3. 90 extruders of sizing material being put into the craspedodrome head are extruded inner glue layer;
4. knitting machine knitted fibers line enhancement layer on the interior pipe rubber layer of extruding of selecting corresponding pin number according to the internal diameter and the external diameter of pipe obtains semi-finished product;
5. glue-line outside extruding outside the semi-finished product that 4. step obtains with T type head on 90 extruders;
6. sebific duct cuts off, the digester (-tor) sulfuration;
7. sebific duct washs, cuts head, obtains sebific duct;
8. on plastic injection equipment with snap joint in the injection moulding in the sebific duct end, obtain finished product;
The 1. middle sizing material of described step adopts reverse method of mixing; Adopt the rotor speed of 15～20RPM; The inflow temperature of cooling water is controlled at below 20 ℃; Plastic emitting temperature after mixing is 120 ℃～130 ℃, can allow filler and auxiliary agent under the mechanism of rotor, to mix in advance, and vulcanizing agent adds at last;
Described step 3. in the head temperature of straight type head be that 65 ℃, the temperature of spout are that 45 ℃, the external diameter of interior pipe are 5-60mm;
The described step 4. pitch of middle knitting machine is 3-5mm;
Described step 5. in the head temperature of T type head be that 70 ℃, the temperature of spout are that 45 ℃, the external diameter of outer tube are 10-80mm;
Described cure time is 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102571926A CN101929586B (en) | 2010-08-19 | 2010-08-19 | Cooling water pipe for electric vehicle and production technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102571926A CN101929586B (en) | 2010-08-19 | 2010-08-19 | Cooling water pipe for electric vehicle and production technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929586A CN101929586A (en) | 2010-12-29 |
| CN101929586B true CN101929586B (en) | 2012-10-31 |
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| CN2010102571926A Expired - Fee Related CN101929586B (en) | 2010-08-19 | 2010-08-19 | Cooling water pipe for electric vehicle and production technology thereof |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305318B (en) * | 2011-08-18 | 2013-04-10 | 浙江峻和橡胶科技有限公司 | Cooling water pipe and manufacturing method thereof |
| CN102305317A (en) * | 2011-08-18 | 2012-01-04 | 浙江峻和橡胶科技有限公司 | Rubber hose for turbocharging air pump and manufacturing method for rubber hose |
| CN102305319A (en) * | 2011-09-01 | 2012-01-04 | 宁波丰茂汽车零部件有限公司 | Automotive rubber tube applied to silicon controlled rectifier (SCR) and production process for automotive rubber tube |
| CN102588685A (en) * | 2011-12-16 | 2012-07-18 | 无锡二橡胶股份有限公司 | Rubber tube for hydrogen-powered vehicles |
| CN102628530B (en) * | 2012-04-06 | 2013-09-18 | 浙江峻和橡胶科技有限公司 | Production process of engine fuel pipe |
| CN103277611B (en) * | 2013-05-27 | 2014-12-31 | 宁波丰茂汽车零部件有限公司 | Heavy-caliber radiator metal tube assembly and manufacturing technique thereof |
| CN103266947B (en) * | 2013-06-03 | 2015-03-25 | 宁波丰茂汽车零部件有限公司 | Overtemperature resistant turbocharging radiator water pipe and producing process thereof |
| CN105131639A (en) * | 2015-09-18 | 2015-12-09 | 南通联恒新材料有限公司 | Manufacturing process for hard engineering plastic |
| CN106287022A (en) * | 2016-08-25 | 2017-01-04 | 焦作恒荣科技有限公司 | A kind of rubber tube for turbo charged air pump and manufacture method thereof |
| CN112646278A (en) * | 2020-12-02 | 2021-04-13 | 上海华林特种胶管有限公司 | Method for vulcanizing oxygen lance cooling water rubber pipe of steel-making converter |
| CN112519284A (en) * | 2020-12-02 | 2021-03-19 | 上海华林特种胶管有限公司 | Method for manufacturing steel-making converter oxygen lance cooling water rubber pipe |
| CN112677522A (en) * | 2020-12-18 | 2021-04-20 | 中国第一汽车股份有限公司 | Preparation method of high-temperature-resistant low-pressure-variable cooling rubber pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410698A (en) * | 2002-11-27 | 2003-04-16 | 四川大学 | Steel plastic composite hot melt spigot and faucel pipe fitting used for aluminium plastic composite pipe pipe line connection |
| CN1851307A (en) * | 2006-05-11 | 2006-10-25 | 蒋亨雷 | Pneumatic brake pipe, and its manufacturing method |
| CN101660636A (en) * | 2009-09-21 | 2010-03-03 | 浙江峻和橡胶科技有限公司 | Oil-cooling pipe of automatic gearbox and production process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01275127A (en) * | 1988-04-28 | 1989-11-02 | Tokai Rubber Ind Ltd | Method and device for manufacturing fiber-reinforced rubber hose |
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2010
- 2010-08-19 CN CN2010102571926A patent/CN101929586B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410698A (en) * | 2002-11-27 | 2003-04-16 | 四川大学 | Steel plastic composite hot melt spigot and faucel pipe fitting used for aluminium plastic composite pipe pipe line connection |
| CN1851307A (en) * | 2006-05-11 | 2006-10-25 | 蒋亨雷 | Pneumatic brake pipe, and its manufacturing method |
| CN101660636A (en) * | 2009-09-21 | 2010-03-03 | 浙江峻和橡胶科技有限公司 | Oil-cooling pipe of automatic gearbox and production process thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-275127A 1989.11.02 |
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