CN113845779A - Composite temperature-sensing wax used in temperature-sensing element of electronic thermostat and preparation method thereof - Google Patents
Composite temperature-sensing wax used in temperature-sensing element of electronic thermostat and preparation method thereof Download PDFInfo
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- CN113845779A CN113845779A CN202111097941.8A CN202111097941A CN113845779A CN 113845779 A CN113845779 A CN 113845779A CN 202111097941 A CN202111097941 A CN 202111097941A CN 113845779 A CN113845779 A CN 113845779A
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- 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
- C08K3/02—Elements
- C08K3/08—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
Abstract
The invention discloses a composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof, wherein the composite temperature-sensing wax comprises the following raw materials: 25 to 40 percent of paraffin, 60 to 78 percent of copper powder and 1.5 to 2.5 percent of additive; the method comprises the following steps: p1, preparing paraffin; p2, obtaining sealing paraffin; p3, preparing copper powder; p4, obtaining sealed copper powder; p5, obtaining melted paraffin; p6, obtaining a mixed material; p7, obtaining a stirred material; p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material; p9, finalize the design with final material natural cooling, take out sealed package after the cutting, can accomplish the preparation, seal at last and melt the mixture after reinforced, guarantee the homogeneity and the quality of product, and then effectively improve the temperature sensing characteristic, guarantee the accuracy of thermal expansion cold shrinkage, do benefit to the control and use, convenient processing preparation can use widely.
Description
Technical Field
The invention relates to the technical field of temperature sensing wax, in particular to composite temperature sensing wax used in a temperature sensing element of an electronic thermostat and a preparation method thereof.
Background
In an automobile engine cooling system, an electronic thermostat is used, in the structure of the electronic thermostat, temperature sensing wax is mostly used as a temperature sensing material in a temperature sensing element, and heat conducting materials adopted by the temperature sensing wax in the temperature sensing element of the thermostat mainly comprise copper powder, and the temperature sensing wax can rapidly make a reaction of expansion with heat and contraction with cold when the temperature changes by combining the paraffin and utilizing the characteristic of strong heat conducting capability of the copper powder.
However, in the preparation of the existing thermostat temperature-sensing wax, paraffin which is an industrial byproduct is mostly directly adopted as a raw material, and then copper powder is combined for mixing, so that the purity of the wax is influenced by the components, the precision of the thermal expansion and cold shrinkage rate is low, the wax is not beneficial to accurate control, and the wax is easy to be interfered and changed in the technical process in the preparation and mixing processes of the raw materials, is not beneficial to uniform combination, the precision of the temperature-sensing wax is greatly reduced, the wax is not beneficial to preparation and use, and a new method needs to be provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides composite temperature sensing wax used in a temperature sensing element of an electronic thermostat and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof are disclosed, wherein the composite temperature-sensing wax comprises the following raw materials: 25 to 40 percent of paraffin, 60 to 78 percent of copper powder and 1.5 to 2.5 percent of additive;
the preparation method of the composite temperature-sensitive wax comprises the following steps:
p1, selecting cerate in the oil refining by-product as a raw material to prepare paraffin;
p2, immersing the paraffin in methanol, and sealing and storing to obtain sealed paraffin;
p3, selecting red copper as a raw material, and grinding by using a high-energy ball mill to prepare copper powder;
p4, sealing the copper powder in a steel tank body, and introducing inert gas for preservation to obtain sealed copper powder;
p5, taking out the sealed paraffin, adding the sealed paraffin into stirring equipment, introducing inert gas for sealing, and heating to 95-110 ℃ to obtain molten paraffin;
p6, adding the additive into the melted paraffin, and uniformly stirring for 20 to 30 minutes to obtain a mixed material;
p7, adding the sealed copper powder into stirring equipment, and uniformly stirring for 40 to 60 minutes to obtain a stirred material;
p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material;
and P9, naturally cooling and shaping the final material, taking out and cutting the final material, and sealing and packaging the final material to finish the preparation.
Preferably, the method for preparing paraffin by using the cerate in P1 adopts a distillation processing method, and comprises the following steps:
a1, performing primary distillation on the cerate serving as a raw material, setting the distillation temperature to be 80-90 ℃ and the distillation pressure to be 0.1-0.25 MPa, and separating out light components in the raw material to obtain a primary distillation product;
a2, performing secondary distillation by taking the primary distillation product as a raw material, setting the distillation temperature to be 40-60 ℃, and the distillation pressure to be 0.3-0.45 MPa, and removing redundant substances to obtain a secondary distillation product;
a3, taking out the secondary distillation, and placing the secondary distillation into methanol for cooling and shaping to obtain the paraffin.
Preferably, the grinding in P3 for preparing copper powder comprises the following steps:
b1, selecting a red copper plate as a basic raw material, and cutting the stroke particle materials;
b2, putting the particle materials into a high-energy ball mill, filling argon as inert gas for protection to avoid oxidation, and grinding and crushing to form ground materials;
b3, extracting a part of ground materials as a sample, checking the particle size of the sample, and stopping grinding after compounding the standard;
b4, placing the steel tank body in a discharging position of a grinding machine, and discharging after flushing argon;
and B5, putting the grinding particles into an argon atmosphere, and sealing and storing to finish the preparation of the copper powder.
Preferably, the additive is a paraffin thickener comprising one of polyisobutylene and ethyl acetate.
Preferably, the stirring and heating sequence in the P5 is to firstly introduce inert gas and then add paraffin, and finally heat, and the temperature rise rate is 15 to 20 ℃ per minute.
Preferably, the pressure of inert gas introduced into the P5 is 0.2MPa to 0.25MPa, and after heating, redundant gas is discharged, and a constant pressure range is maintained.
Preferably, the copper powder is extracted by a conveying pipe after the sealed copper powder is added into the P7, and the copper powder and the inert gas for protection are added into a stirring machine together.
Preferably, the vacuum pumping in the P8 is continuously pumping negative pressure, and the constant pressure range is kept between-0.06 MPa and-0.04 MPa.
Preferably, the sealed packaging in P9 further comprises performing cryopreservation.
According to the composite temperature sensing wax for the temperature sensing element of the electronic thermostat and the preparation method thereof, the paraffin is prepared by distilling the cerate, and then is immersed and stored, so that the purity of the raw materials can be ensured, the oxidation pollution is avoided, meanwhile, the copper powder is prepared by grinding under the protection of inert gas and then is stored in a sealed manner, so that the fineness of the raw materials is further improved, finally, the raw materials are subjected to melting and mixing after sealed feeding, the uniformity and the quality of the product are ensured, the temperature sensing characteristic is effectively improved, the accuracy of the thermal expansion and the cold shrinkage rate is ensured, the composite temperature sensing wax is beneficial to control and use, is convenient to process and prepare, and can be popularized and used.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof are disclosed, wherein the composite temperature-sensing wax comprises the following raw materials: 25 to 40 percent of paraffin, 60 to 78 percent of copper powder and 1.5 to 2.5 percent of additive;
the preparation method of the composite temperature-sensitive wax comprises the following steps:
p1, selecting cerate in the oil refining by-product as a raw material to prepare paraffin;
p2, immersing the paraffin in methanol, and sealing and storing to obtain sealed paraffin;
p3, selecting red copper as a raw material, and grinding by using a high-energy ball mill to prepare copper powder;
p4, sealing the copper powder in a steel tank body, and introducing inert gas for preservation to obtain sealed copper powder;
p5, taking out the sealed paraffin, adding the sealed paraffin into stirring equipment, introducing inert gas for sealing, and heating to 95-110 ℃ to obtain molten paraffin;
p6, adding the additive into the melted paraffin, and uniformly stirring for 20 to 30 minutes to obtain a mixed material;
p7, adding the sealed copper powder into stirring equipment, and uniformly stirring for 40 to 60 minutes to obtain a stirred material;
p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material;
and P9, naturally cooling and shaping the final material, taking out and cutting the final material, and sealing and packaging the final material to finish the preparation.
Preferably, the method for preparing paraffin by using the cerate in P1 adopts a distillation processing method, and comprises the following steps:
a1, performing primary distillation on the cerate serving as a raw material, setting the distillation temperature to be 80-90 ℃ and the distillation pressure to be 0.1-0.25 MPa, and separating out light components in the raw material to obtain a primary distillation product;
a2, performing secondary distillation by taking the primary distillation product as a raw material, setting the distillation temperature to be 40-60 ℃, and the distillation pressure to be 0.3-0.45 MPa, and removing redundant substances to obtain a secondary distillation product;
a3, taking out the secondary distillation, and placing the secondary distillation into methanol for cooling and shaping to obtain the paraffin.
Preferably, the grinding in P3 for preparing copper powder comprises the following steps:
b1, selecting a red copper plate as a basic raw material, and cutting the stroke particle materials;
b2, putting the particle materials into a high-energy ball mill, filling argon as inert gas for protection to avoid oxidation, and grinding and crushing to form ground materials;
b3, extracting a part of ground materials as a sample, checking the particle size of the sample, and stopping grinding after compounding the standard;
b4, placing the steel tank body in a discharging position of a grinding machine, and discharging after flushing argon;
and B5, putting the grinding particles into an argon atmosphere, and sealing and storing to finish the preparation of the copper powder.
Preferably, the additive is a paraffin thickener including one of polyisobutylene and ethyl acetate.
Preferably, the stirring and heating sequence in the P5 is to firstly introduce inert gas, then add paraffin and finally heat, and the temperature rise rate is 15 ℃ per minute to 20 ℃ per minute.
Preferably, the pressure of the inert gas introduced into the P5 is 0.2MPa to 0.25MPa, and the excess gas is discharged after heating, and the constant pressure range is maintained.
Preferably, the copper powder is extracted by a conveying pipe after the sealed copper powder is added into the P7, and the copper powder and the inert gas for protection are added into a stirring machine together.
Preferably, the vacuum pumping in the P8 is continuously pumping negative pressure, and the constant pressure range is kept between-0.06 MPa and-0.04 MPa.
Preferably, the sealed packaging in P9 further comprises performing cryopreservation.
According to the composite temperature sensing wax for the temperature sensing element of the electronic thermostat and the preparation method thereof, the paraffin is prepared by distilling the cerate, and then is immersed and stored, so that the purity of the raw materials can be ensured, the oxidation pollution is avoided, meanwhile, the copper powder is prepared by grinding under the protection of inert gas and then is stored in a sealed manner, so that the fineness of the raw materials is further improved, finally, the raw materials are subjected to melting and mixing after sealed feeding, the uniformity and the quality of the product are ensured, the temperature sensing characteristic is effectively improved, the accuracy of the thermal expansion and the cold shrinkage rate is ensured, the composite temperature sensing wax is beneficial to control and use, is convenient to process and prepare, and can be popularized and used.
Example 1
A composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof are disclosed, wherein the composite temperature-sensing wax comprises the following raw materials: 26.5% of paraffin, 71.7% of copper powder and 1.8% of additive;
the preparation method of the composite temperature-sensitive wax comprises the following steps:
p1, selecting cerate in the oil refining by-product as a raw material to prepare paraffin;
p2, immersing the paraffin in methanol, and sealing and storing to obtain sealed paraffin;
p3, selecting red copper as a raw material, and grinding by using a high-energy ball mill to prepare copper powder;
p4, sealing the copper powder in a steel tank body, and introducing inert gas for preservation to obtain sealed copper powder;
p5, taking out the sealed paraffin, adding the sealed paraffin into stirring equipment, introducing inert gas for sealing, and heating to 95-110 ℃ to obtain molten paraffin;
p6, adding the additive into the melted paraffin, and uniformly stirring for 20 to 30 minutes to obtain a mixed material;
p7, adding the sealed copper powder into stirring equipment, and uniformly stirring for 40 to 60 minutes to obtain a stirred material;
p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material;
and P9, naturally cooling and shaping the final material, taking out and cutting the final material, and sealing and packaging the final material to finish the preparation.
Preferably, the method for preparing paraffin by using the cerate in P1 adopts a distillation processing method, and comprises the following steps:
a1, performing primary distillation on the cerate serving as a raw material, setting the distillation temperature to be 80-90 ℃ and the distillation pressure to be 0.1-0.25 MPa, and separating out light components in the raw material to obtain a primary distillation product;
a2, performing secondary distillation by taking the primary distillation product as a raw material, setting the distillation temperature to be 40-60 ℃, and the distillation pressure to be 0.3-0.45 MPa, and removing redundant substances to obtain a secondary distillation product;
a3, taking out the secondary distillation, and placing the secondary distillation into methanol for cooling and shaping to obtain the paraffin.
Preferably, the grinding in P3 for preparing copper powder comprises the following steps:
b1, selecting a red copper plate as a basic raw material, and cutting the stroke particle materials;
b2, putting the particle materials into a high-energy ball mill, filling argon as inert gas for protection to avoid oxidation, and grinding and crushing to form ground materials;
b3, extracting a part of ground materials as a sample, checking the particle size of the sample, and stopping grinding after compounding the standard;
b4, placing the steel tank body in a discharging position of a grinding machine, and discharging after flushing argon;
and B5, putting the grinding particles into an argon atmosphere, and sealing and storing to finish the preparation of the copper powder.
Preferably, the additive is a paraffin thickener including one of polyisobutylene and ethyl acetate.
Preferably, the stirring and heating sequence in the P5 is to firstly introduce inert gas, then add paraffin and finally heat, and the temperature rise rate is 15 ℃ per minute to 20 ℃ per minute.
Preferably, the pressure of the inert gas introduced into the P5 is 0.2MPa to 0.25MPa, and the excess gas is discharged after heating, and the constant pressure range is maintained.
Preferably, the copper powder is extracted by a conveying pipe after the sealed copper powder is added into the P7, and the copper powder and the inert gas for protection are added into a stirring machine together.
Preferably, the vacuum pumping in the P8 is continuously pumping negative pressure, and the constant pressure range is kept between-0.06 MPa and-0.04 MPa.
Preferably, the sealed packaging in P9 further comprises performing cryopreservation.
Example 2
A composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof are disclosed, wherein the composite temperature-sensing wax comprises the following raw materials: 28% of paraffin, 70% of copper powder and 2% of additive;
the preparation method of the composite temperature-sensitive wax comprises the following steps:
p1, selecting cerate in the oil refining by-product as a raw material to prepare paraffin;
p2, immersing the paraffin in methanol, and sealing and storing to obtain sealed paraffin;
p3, selecting red copper as a raw material, and grinding by using a high-energy ball mill to prepare copper powder;
p4, sealing the copper powder in a steel tank body, and introducing inert gas for preservation to obtain sealed copper powder;
p5, taking out the sealed paraffin, adding the sealed paraffin into stirring equipment, introducing inert gas for sealing, and heating to 95-110 ℃ to obtain molten paraffin;
p6, adding the additive into the melted paraffin, and uniformly stirring for 20 to 30 minutes to obtain a mixed material;
p7, adding the sealed copper powder into stirring equipment, and uniformly stirring for 40 to 60 minutes to obtain a stirred material;
p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material;
and P9, naturally cooling and shaping the final material, taking out and cutting the final material, and sealing and packaging the final material to finish the preparation.
Preferably, the method for preparing paraffin by using the cerate in P1 adopts a distillation processing method, and comprises the following steps:
a1, performing primary distillation on the cerate serving as a raw material, setting the distillation temperature to be 80-90 ℃ and the distillation pressure to be 0.1-0.25 MPa, and separating out light components in the raw material to obtain a primary distillation product;
a2, performing secondary distillation by taking the primary distillation product as a raw material, setting the distillation temperature to be 40-60 ℃, and the distillation pressure to be 0.3-0.45 MPa, and removing redundant substances to obtain a secondary distillation product;
a3, taking out the secondary distillation, and placing the secondary distillation into methanol for cooling and shaping to obtain the paraffin.
Preferably, the grinding in P3 for preparing copper powder comprises the following steps:
b1, selecting a red copper plate as a basic raw material, and cutting the stroke particle materials;
b2, putting the particle materials into a high-energy ball mill, filling argon as inert gas for protection to avoid oxidation, and grinding and crushing to form ground materials;
b3, extracting a part of ground materials as a sample, checking the particle size of the sample, and stopping grinding after compounding the standard;
b4, placing the steel tank body in a discharging position of a grinding machine, and discharging after flushing argon;
and B5, putting the grinding particles into an argon atmosphere, and sealing and storing to finish the preparation of the copper powder.
Preferably, the additive is a paraffin thickener including one of polyisobutylene and ethyl acetate.
Preferably, the stirring and heating sequence in the P5 is to firstly introduce inert gas, then add paraffin and finally heat, and the temperature rise rate is 15 ℃ per minute to 20 ℃ per minute.
Preferably, the pressure of the inert gas introduced into the P5 is 0.2MPa to 0.25MPa, and the excess gas is discharged after heating, and the constant pressure range is maintained.
Preferably, the copper powder is extracted by a conveying pipe after the sealed copper powder is added into the P7, and the copper powder and the inert gas for protection are added into a stirring machine together.
Preferably, the vacuum pumping in the P8 is continuously pumping negative pressure, and the constant pressure range is kept between-0.06 MPa and-0.04 MPa.
Preferably, the sealed packaging in P9 further comprises performing cryopreservation.
Claims (9)
1. A composite temperature-sensing wax used in a temperature-sensing element of an electronic thermostat and a preparation method thereof are characterized in that: the composite temperature-sensitive wax comprises the following raw materials: 25 to 40 percent of paraffin, 60 to 78 percent of copper powder and 1.5 to 2.5 percent of additive;
the preparation method of the composite temperature-sensitive wax comprises the following steps:
p1, selecting cerate in the oil refining by-product as a raw material to prepare paraffin;
p2, immersing the paraffin in methanol, and sealing and storing to obtain sealed paraffin;
p3, selecting red copper as a raw material, and grinding by using a high-energy ball mill to prepare copper powder;
p4, sealing the copper powder in a steel tank body, and introducing inert gas for preservation to obtain sealed copper powder;
p5, taking out the sealed paraffin, adding the sealed paraffin into stirring equipment, introducing inert gas for sealing, and heating to 95-110 ℃ to obtain molten paraffin;
p6, adding the additive into the melted paraffin, and uniformly stirring for 20 to 30 minutes to obtain a mixed material;
p7, adding the sealed copper powder into stirring equipment, and uniformly stirring for 40 to 60 minutes to obtain a stirred material;
p8, vacuumizing the stirring equipment to-0.08 MPa to-0.05 MPa, and continuously stirring for 30 minutes to 40 minutes to obtain a final material;
and P9, naturally cooling and shaping the final material, taking out and cutting the final material, and sealing and packaging the final material to finish the preparation.
2. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the method for preparing the paraffin from the cerate in the P1 adopts a distillation processing method, and comprises the following steps:
a1, performing primary distillation on the cerate serving as a raw material, setting the distillation temperature to be 80-90 ℃ and the distillation pressure to be 0.1-0.25 MPa, and separating out light components in the raw material to obtain a primary distillation product;
a2, performing secondary distillation by taking the primary distillation product as a raw material, setting the distillation temperature to be 40-60 ℃, and the distillation pressure to be 0.3-0.45 MPa, and removing redundant substances to obtain a secondary distillation product;
a3, taking out the secondary distillation, and placing the secondary distillation into methanol for cooling and shaping to obtain the paraffin.
3. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the method for preparing the copper powder by grinding in the P3 comprises the following steps:
b1, selecting a red copper plate as a basic raw material, and cutting the stroke particle materials;
b2, putting the particle materials into a high-energy ball mill, filling argon as inert gas for protection to avoid oxidation, and grinding and crushing to form ground materials;
b3, extracting a part of ground materials as a sample, checking the particle size of the sample, and stopping grinding after compounding the standard;
b4, placing the steel tank body in a discharging position of a grinding machine, and discharging after flushing argon;
and B5, putting the grinding particles into an argon atmosphere, and sealing and storing to finish the preparation of the copper powder.
4. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the additive is a paraffin thickener and comprises one of polyisobutylene and ethyl acetate.
5. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the stirring and heating sequence in the P5 is that inert gas is firstly introduced, then paraffin is added, and finally heating is carried out, and the temperature rise rate is 15 ℃ per minute to 20 ℃ per minute.
6. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: and introducing inert gas into the P5, wherein the pressure of the inert gas is 0.2MPa to 0.25MPa, discharging redundant gas after heating, and keeping a constant pressure range.
7. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: and adding sealed copper powder into the P7, extracting the copper powder by using a conveying pipe, and adding the copper powder and inert gas for protection into a stirring machine.
8. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the vacuum pumping in the P8 is to continuously pump negative pressure and keep the constant pressure range from minus 0.06MPa to minus 0.04 MPa.
9. The preparation method of the composite temperature sensing wax used in the temperature sensing element of the electronic thermostat according to the claim 1, characterized in that: the sealed packaging in P9 further comprises freezing and storing.
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| CN202111097941.8A CN113845779A (en) | 2021-09-18 | 2021-09-18 | Composite temperature-sensing wax used in temperature-sensing element of electronic thermostat and preparation method thereof |
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|---|---|---|---|
| CN202111097941.8A CN113845779A (en) | 2021-09-18 | 2021-09-18 | Composite temperature-sensing wax used in temperature-sensing element of electronic thermostat and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101235205A (en) * | 2008-01-23 | 2008-08-06 | 浙江慧康暖通设备有限公司 | Preparation of temperature-sensing wax mixture |
| CN102952583A (en) * | 2011-08-18 | 2013-03-06 | 江苏泰尔新材料科技有限公司 | Preparation method of temperature-sensing wax for automatic window opener |
| CN104774477A (en) * | 2015-03-24 | 2015-07-15 | 曲阜天博汽车零部件制造有限公司 | Composite temperature sensitive wax used in thermoregulator temperature-sensing element and preparation method thereof |
| CN107513418A (en) * | 2016-06-17 | 2017-12-26 | 中国石油化工股份有限公司 | The production method of thermostat Wax dielectric |
| WO2019240702A2 (en) * | 2018-01-17 | 2019-12-19 | Kirpart Otomotiv Parcalari Sanayi Ve Ticaret A.S | A hydraulic fluid mixture which provides improvement in reaction time of thermo-elements and allows this improvement to be sustainable |
-
2021
- 2021-09-18 CN CN202111097941.8A patent/CN113845779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235205A (en) * | 2008-01-23 | 2008-08-06 | 浙江慧康暖通设备有限公司 | Preparation of temperature-sensing wax mixture |
| CN102952583A (en) * | 2011-08-18 | 2013-03-06 | 江苏泰尔新材料科技有限公司 | Preparation method of temperature-sensing wax for automatic window opener |
| CN104774477A (en) * | 2015-03-24 | 2015-07-15 | 曲阜天博汽车零部件制造有限公司 | Composite temperature sensitive wax used in thermoregulator temperature-sensing element and preparation method thereof |
| CN107513418A (en) * | 2016-06-17 | 2017-12-26 | 中国石油化工股份有限公司 | The production method of thermostat Wax dielectric |
| WO2019240702A2 (en) * | 2018-01-17 | 2019-12-19 | Kirpart Otomotiv Parcalari Sanayi Ve Ticaret A.S | A hydraulic fluid mixture which provides improvement in reaction time of thermo-elements and allows this improvement to be sustainable |
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