CN105352991A - Powder coating gel time exact measurement determinator - Google Patents
Powder coating gel time exact measurement determinator Download PDFInfo
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- CN105352991A CN105352991A CN201510628459.0A CN201510628459A CN105352991A CN 105352991 A CN105352991 A CN 105352991A CN 201510628459 A CN201510628459 A CN 201510628459A CN 105352991 A CN105352991 A CN 105352991A
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- calandria
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
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Abstract
The present invention discloses a powder coating gel time exact measurement determinator including a heating body, a temperature sensor, a transformer and a control unit, the heating body is internally provided with a heating rod, the heating body is provided with a groove for placing a to-be-tested powder coating, the temperature sensor is mounted in the heating body, and outputs a temperature signal to the control unit, the heating rod is connected, via the transformer, with a power supply, and the control unit outputs a pressure adjusting signal to the transformer. The powder coating gel time exact measurement determinator can significantly improve the efficiency, accuracy and repeatability of gel time determination.
Description
Technical field
The present invention relates to the technical field that determination of powder coating gel time device manufactures.
Background technology
At present, powdery paints, as the free of contamination new coating of one, has been widely used in the incrustation of the materials such as automobile, household electrical appliances and freeway guardrail.Gel time, as one of powdery paints important Testing index, directly can reflect the quality of powdery paints, and its definition is the powdery paints of certain volume time required when reaching enough cross-linking densities after melting under official hour and temperature.
In existing technology, traditional gel time analyzer is laid in the groove of calandria by powdery paints, and the apparent temperature of coating and displays temperature may also exist difference, and therefore its design exists following technical matters:
1, traditional gel time analyzer, owing to have employed cylinder shape groove design at heating part, after experiment terminates, cleaning is inconvenient like this, and residual powdery paints can bring interference to experiment next time;
2, traditional gel time analyzer, after interpolation powdery paints, can produce temperature gradient field between calandria and powdery paints, the temperature causing coating upper surface to experience and displays temperature are misfitted, and affect accuracy and the repeatability of gel time measurement.
Summary of the invention
Technical matters to be solved by this invention be realize a kind of can the technical scheme of Accurate Measurement power coatings gel time.Will be more simple by this programme test gel time, the reproducibility and reliability of data will be better simultaneously.
To achieve these goals, the technical solution used in the present invention is: a kind of analyzer of Accurate Measurement power coatings gel time, comprise calandria, temperature sensor, transformer and control module, heating rod is provided with in described calandria, described calandria is provided with the groove for placing powdery paints to be detected, described temperature sensor is arranged on the interior also output temperature signal of calandria to control module, described heating rod connects power supply through transformer, and described control module exports pressure regulation signal to transformer.
Be provided with infrared thermometer above described calandria, described infrared thermometer measure temperature in calandria groove and output temperature signal to control module.
Described calandria comprises base, the cell wall on base and the groove between cell wall and base, described groove floor level and smooth, described cell wall is provided with air flue, described cell wall is provided with the gas outlet be communicated with air flue, what described gas outlet was equidistant and contour is arranged on cell wall, every side channel wall of described groove is equipped with gas outlet, and in described gas outlet, the flow direction of blow gas is parallel with groove floor.
Described air flue air intake opening is positioned on base, and extends to cell wall in S shape after coiling in base.
Described heating rod is between the air flue and groove of the coiling in S shape.
Heat-conducting glue is provided with between described calandria and temperature sensor.
Based on a detection method for analyzer, it is characterized in that:
Step 1, set heating-up temperature by control module, start analyzer, control module calandria is heated to design temperature;
Step 2, get powdery paints and the zone line being laid in groove makes its melting, start timing;
Step 3, stirring powdery paints are until gel;
Terminate timing after step 4, gel, consuming time is the gel time of powdery paints under assigned temperature.
This detection method also has following steps:
Step 4, test complete after timely putty knife scrape off gel after powdery paints;
Step 5, repeat test at least 3 times and be averaged gel time, complete experiment.
In described step 3, stir powdery paints and adopt mixing needle to do ring-type wire drawing campaign in the powdery paints melted, when the silk of thickness in whipping process can rupture in drawing process, then judge to stir coating gel.
After analyzer starts, the temperature signal that real-time displays temperature sensor and infrared thermometer gather.
The analyzer of Accurate Measurement power coatings gel time of the present invention can improve the efficiency, accuracy and the repeatability that measure gel time significantly.
Accompanying drawing explanation
Mark in the content expressed every width accompanying drawing in instructions of the present invention below and figure is briefly described:
Fig. 1 is calandria structural representation;
Fig. 2 is B-B cut-open view in Fig. 1
Mark in above-mentioned figure is: 1, calandria; 2, air flue; 3, heating rod; 4, temperature sensor.
Embodiment
The analyzer of Accurate Measurement power coatings gel time, calandria 1, temperature sensor 4, transformer and control module, heating rod 3 is provided with in calandria 1, calandria 1 is provided with the groove for placing powdery paints to be detected, temperature sensor 4 is arranged on the interior also output temperature signal of calandria 1 to control module, infrared thermometer is provided with above this external calandria 1, infrared thermometer measure temperature in calandria 1 groove and output temperature signal to control module, control module can utilize the temperature of infrared thermometer and temperature sensor 4 to carry out closed loop thermal control, heating rod 3 connects power supply through transformer, control module exports pressure regulation signal to transformer.
The voltage of input power is reduced to reach the effect of safe handling by transformer, in addition, the setting of double check point, makes thermometric more comprehensively accurately, can by the temperature of calandria 1 during control module accurate control survey gel time, the precision that can realize temperature fluctuation is ± 0.1 DEG C.
As shown in Figure 1, 2, calandria 1 is provided with the groove for placing powdery paints to be detected to calandria 1, and calandria 1 entirety can adopt metal (as the copper) one-step casting that temperature conductivity is high shaping, by finishing process.
Calandria 1 comprises base, the cell wall on base and the groove between cell wall and base, and groove both ends open only can be provided with cell wall in both sides, also can be equipped with cell wall on four sides.Groove floor level and smooth, preferred cell wall inwall is also smooth flat, is conducive to powdery paints like this and sprawls in upper surface melted by heating and come, be convenient to stirring system (draw point etc.) and stir with Accurate Measurement gel time on its surface.Simultaneously this be designed with cleaning meanss such as being beneficial to putty knife clear up fast test after the powdery paints that remains, improve the efficiency of experiment.This external groove sidevall and base interface portion are fillet structure, and the convenient later stage is cleaned.
In order to ensure that the upper surface testing coating also can thermally equivalent, warranty test effect, cell wall is provided with air flue 2, air flue 2 is arranged along whole cell wall, cell wall is provided with the gas outlet be communicated with air flue 2, blows in gas outlet in groove, owing to being positioned at calandria 1 by air flue 2, like this, the gas of blowout is hot gas.Gas outlet needs at least distance groove floor 1cm, to ensure that coating tiling detects, coating also can be avoided to block gas outlet.In addition for keeping hot gas evenly to export, what gas outlet was equidistant and contour is arranged on cell wall, and every side channel wall of groove is equipped with gas outlet.
The diameter of air flue 2 is greater than gas outlet diameter, and the flow direction of blow gas is parallel with groove floor in gas outlet, the gas inputted is heated in calandria 1, be convenient to the cross-ventilation producing heat above calandria 1 groove, make the temperature above calandria 1 groove identical with calandria 1 temperature, play the effect of heating powder coating, the true temperature of powdery paints is conformed to displays temperature, add accuracy and the repeatability of data.The source of the gas that air flue 2 inputs can be pressurized air or high pressure nitrogen.
Heating rod 3 is at least provided with two and is embedded in advance in base uniformly, preferably arrange two, be arranged on centre position, calandria 1 both sides to realize the heating to calandria 1, connect to keep the homogeneity of conducting heat by the heat-conducting glue of solidification between heating rod 3 and calandria 1 simultaneously.
In addition, the hot gas blown out to make gas outlet and the unification more of calandria 1 temperature, ensure experiment effect, air flue 2 air intake opening is positioned on base, and extends to cell wall in S shape after coiling in base, can ensure that gas can fully heat before blowout like this; In order to ensure gas-heated, also can ensure that calandria 1 heats, heating rod 3 is between the air flue 2 and groove of the coiling in S shape.Thus ensure that calandria 1 works more reliable and more stable.And in base, be embedded with temperature sensor 4, be provided with heat-conducting glue between hot body and temperature sensor 4, keep the homogeneity of heat transfer.
Based on said determination instrument structure, detection method is as follows:
Step 1, measure the assigned temperature required for gel time by the setting of artificial intelligence temperature controller, now calandria 1 is slowly heated to assigned temperature by heating rod 3;
Step 2 is with little medicine bale-out about 1 gram of powder (size according to analyzer sets) last coating and the zone line being laid in groove makes its melting, starts timing; After certain interpolation coating, blow afloat system (source of the gas) and also start working, auxiliary heating;
Step 3, with thin mixing needle (stirring system) melt powdery paints in do ring-type wire drawing campaign until the silk of thickness can rupture in drawing process; The powdery paints manually stirring melting accurately can measure its gel time;
Time in step 4, step 3 required for whipping process is the gel time of powdery paints under assigned temperature;
Step 4 tests the powdery paints after complete timely putty knife afterwards scrapes off gel;
Step 5,3 repeated experiments be averaged gel time, complete experiment.
Certainly conveniently tester observes detected parameters, after analyzer starts, and the temperature signal that real-time displays temperature sensor and infrared thermometer gather.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. the analyzer of an Accurate Measurement power coatings gel time, it is characterized in that: comprise calandria, temperature sensor, transformer and control module, heating rod is provided with in described calandria, described calandria is provided with the groove for placing powdery paints to be detected, described temperature sensor is arranged on the interior also output temperature signal of calandria to control module, described heating rod connects power supply through transformer, and described control module exports pressure regulation signal to transformer.
2. the analyzer of Accurate Measurement power coatings gel time according to claim 1, it is characterized in that: above described calandria, be provided with infrared thermometer, described infrared thermometer measure temperature in calandria groove and output temperature signal to control module.
3. the analyzer of Accurate Measurement power coatings gel time according to claim 1 and 2, it is characterized in that: described calandria comprises base, the cell wall on base and the groove between cell wall and base, described groove floor level and smooth, described cell wall is provided with air flue, described cell wall is provided with the gas outlet be communicated with air flue, what described gas outlet was equidistant and contour is arranged on cell wall, every side channel wall of described groove is equipped with gas outlet, and in described gas outlet, the flow direction of blow gas is parallel with groove floor.
4. the analyzer of Accurate Measurement power coatings gel time according to claim 3, is characterized in that: described air flue air intake opening is positioned on base, and extends to cell wall in S shape after coiling in base.
5. the analyzer of Accurate Measurement power coatings gel time according to claim 4, is characterized in that: described heating rod is between the air flue and groove of the coiling in S shape.
6. the analyzer of Accurate Measurement power coatings gel time according to claim 1, is characterized in that: be provided with heat-conducting glue between described calandria and temperature sensor.
7., based on a detection method for the analyzer according to any one of claim 1-6, it is characterized in that:
Step 1, set heating-up temperature by control module, start analyzer, control module calandria is heated to design temperature;
Step 2, get powdery paints and the zone line being laid in groove makes its melting, start timing;
Step 3, stirring powdery paints are until gel;
Terminate timing after step 4, gel, consuming time is the gel time of powdery paints under assigned temperature.
8. detection method according to claim 7, is characterized in that, also has following steps:
Step 4, test complete after timely putty knife scrape off gel after powdery paints;
Step 5, repeat test at least 3 times and be averaged gel time, complete experiment.
9. the detection method according to claim 7 or 8, it is characterized in that: in described step 3, stirring powdery paints adopts mixing needle to do ring-type wire drawing campaign in the powdery paints melted, and when the silk of thickness in whipping process can rupture in drawing process, then judges to stir coating gel.
10. detection method according to claim 9, is characterized in that: after analyzer starts, the temperature signal that real-time displays temperature sensor and infrared thermometer gather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628459.0A CN105352991A (en) | 2015-09-28 | 2015-09-28 | Powder coating gel time exact measurement determinator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510628459.0A CN105352991A (en) | 2015-09-28 | 2015-09-28 | Powder coating gel time exact measurement determinator |
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| CN105352991A true CN105352991A (en) | 2016-02-24 |
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| CN201510628459.0A Pending CN105352991A (en) | 2015-09-28 | 2015-09-28 | Powder coating gel time exact measurement determinator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147179A (en) * | 2020-09-30 | 2020-12-29 | 老虎表面技术新材料（苏州）有限公司 | Automatic test method for powder coating gelling time |
| CN114252409A (en) * | 2021-12-16 | 2022-03-29 | 安徽神剑新材料股份有限公司 | Near infrared spectrum-based powder coating gelling time rapid detection method |
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| CN2432582Y (en) * | 2000-07-28 | 2001-05-30 | 机械工业部广州电器科学研究所 | Thermosetting powder paint gelatinizing time and horizontal fluiding testing device |
| CN1955713A (en) * | 2005-10-26 | 2007-05-02 | 中国科学院力学研究所 | Test device and method of laser induced piston heat fatigue |
| CN201548537U (en) * | 2009-09-23 | 2010-08-11 | 宝山钢铁股份有限公司 | Metal high temperature experimental temperature control mold |
| CN203224420U (en) * | 2013-04-23 | 2013-10-02 | 宁波市派特勒粉末涂料有限公司 | Powder coating gelling time determinator improvement structure |
| CN203602513U (en) * | 2013-12-25 | 2014-05-21 | 潍坊欧普诺生物科技有限公司 | Urea melt tank |
| CN203643376U (en) * | 2014-01-15 | 2014-06-11 | 山东朗法博粉末涂装科技有限公司 | Gelling instrument with function of testing melting point of powder coating |
| CN104698028A (en) * | 2013-12-06 | 2015-06-10 | 天津嘉明爱粤粉末涂料有限公司 | Detection device for measuring gelling time of powder coating |
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2015
- 2015-09-28 CN CN201510628459.0A patent/CN105352991A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432582Y (en) * | 2000-07-28 | 2001-05-30 | 机械工业部广州电器科学研究所 | Thermosetting powder paint gelatinizing time and horizontal fluiding testing device |
| CN1955713A (en) * | 2005-10-26 | 2007-05-02 | 中国科学院力学研究所 | Test device and method of laser induced piston heat fatigue |
| CN201548537U (en) * | 2009-09-23 | 2010-08-11 | 宝山钢铁股份有限公司 | Metal high temperature experimental temperature control mold |
| CN203224420U (en) * | 2013-04-23 | 2013-10-02 | 宁波市派特勒粉末涂料有限公司 | Powder coating gelling time determinator improvement structure |
| CN104698028A (en) * | 2013-12-06 | 2015-06-10 | 天津嘉明爱粤粉末涂料有限公司 | Detection device for measuring gelling time of powder coating |
| CN203602513U (en) * | 2013-12-25 | 2014-05-21 | 潍坊欧普诺生物科技有限公司 | Urea melt tank |
| CN203643376U (en) * | 2014-01-15 | 2014-06-11 | 山东朗法博粉末涂装科技有限公司 | Gelling instrument with function of testing melting point of powder coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147179A (en) * | 2020-09-30 | 2020-12-29 | 老虎表面技术新材料（苏州）有限公司 | Automatic test method for powder coating gelling time |
| CN114252409A (en) * | 2021-12-16 | 2022-03-29 | 安徽神剑新材料股份有限公司 | Near infrared spectrum-based powder coating gelling time rapid detection method |
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Application publication date: 20160224 |
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