CN101750260B - Optimal determining method for drying temperature and time of metal slurry used for rolling - Google Patents
Optimal determining method for drying temperature and time of metal slurry used for rolling Download PDFInfo
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- CN101750260B CN101750260B CN200910196574XA CN200910196574A CN101750260B CN 101750260 B CN101750260 B CN 101750260B CN 200910196574X A CN200910196574X A CN 200910196574XA CN 200910196574 A CN200910196574 A CN 200910196574A CN 101750260 B CN101750260 B CN 101750260B
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Abstract
The invention relates to an optimal determining method for drying temperature and time of metal slurry used for rolling, which belongs to the field of material drying determining technology. The invention mainly dries the metal or alloy slurry added with proper water and bonder under a set temperature of 100-105 DEG C through a stable determining device, and determines a precise and optimal drying time through measuring the limit value of thermo gravimetry, namely when the water weight loss is zero. The invention provides a device system for determining the drying time of metal slurry. The device system consists of an electric-heated thermostatic oven, a precise electronic scale, a computer and a printer, which obtains the optimal drying time thereof through printing the data and weight loss as well as temperature time change curve displayed by the display screen of the computer through the electronic scale, the computer and the printer.
Description
Technical field
The present invention relates to a kind of definite method of optimization drying time of metal slurry used for rolling, belong to drying materials determination techniques field.
Background technology
The rolling stoving process method with the powder slurry of existing powder slurry is:
Metal powder and a certain amount of cementing agent are added water make suspension powder slurry, again the powder slurry is made granule or the band-like film with certain intensity at 90～110 ℃ of left and right sides dewatered dryings, the time of oven dry is mainly determined by technician's experience.
From above-mentioned analysis as can be known:
Definite process of drying time is empirical at present occupies an leading position with subjectivity, and the formulation of technology still lacks a kind of objective foundation.Main drawback shows as: drying time is long, can cause the waste of the energy; Drying time is too short, can cause product quality to descend again.
Cause prior art to exist the main cause of above defective as follows:
The rationality that lacks a kind of objective quantification index evaluation stoving process.Particularly, promptly the drying time parameter determine still lack a kind of desirable practicality method.
Therefore, how adopting suitable method to determine drying time, is to solve present defective workmanship and not enough key problem.
Summary of the invention
The objective of the invention is to solve the defective and the deficiency of above-mentioned existence, proposed to determine drying time parameter under the uniform temperature with the thermal weight loss limit approach.Another purpose of the present invention provides a kind of definite method of optimization drying time of metal slurry used for rolling,
Definite method of the optimization drying time of a kind of metal slurry used for rolling of the present invention is characterized in that having following process and step:
A. metal or alloy powder and low amounts of water and the composite powder slurry of cementing agent are placed in the specific electric heating constant temperature baking oven, opening power begins to heat up; The heating-up temperature of setting is 90～110 ℃; Programming rate when initial from the room temperature to the design temperature is 8 ℃ ± 1 ℃/min;
B. after a while, after reaching equilibrium temperature and being design temperature, temperature no longer changes; At the electronic weighting equipment that is connected with baking oven, dynamically show the loss in weight of powder slurry in the powder slurry drying course; When the loss in weight of water under design temperature reaches capacity, promptly when the loss in weight equals zero, show that water removes fully;
C. meanwhile, with computer display screen that electronic weighting equipment links to each other on show related data and temperature-time change curve, and can note by printer prints; Can learn accurate, the optimized drying time of metal powder pulp this moment.
The bake out temperature of a kind of metal slurry used for rolling of the present invention and the optimization of time are determined the device of method special use, and this apparatus system is made up of electrothermostat, Precision Electronics Balance, computer and printer; It is characterized in that baking oven bottom is connected with electronic scales by the steel plate of fixation together, also promptly become the weight plate on electronic scales surface, both are connected as a single entity; Be provided with many lattice in the baking oven and place the pallet of powder slurry; Adopt the RS232 serial communication between electronic scales and the computer, it is 2400 that the Bit of data transmission leads, and data transfer mode adopts the Stream mode with the ASCII character continuous output signal; The sampling frequency of weight change is 10 times/second, and the weight change value is delivered to computing machine by the RS232 serial ports, and shows at computer display; Be connected by USB 2.0 or DB 25 interfaces between computer and the printer, during each print data, call Microsoft's Excel software and open the preservation document, and use the figure table function of Excel software, draw out the weight change time curve, and realize data printing and data filing.
Description of drawings
Fig. 1 is the apparatus system of mensuration metal powder pulp drying time of the present invention.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment: in the present embodiment, utilize the device of measuring the metal powder pulp drying time that various metal alloy powder slurries are carried out drying time as tungsten nickel iron alloy powder slurry, tungsten bronzing liquid, molybdenum bronzing liquid and measure.The bake out temperature of setting is respectively 95 ℃, 100 ℃ and 105 ℃; Programming rate in the baking oven is respectively 7 ℃/minute, 80 ℃/minute and 9 ℃/minute; Finally go out computer display screen data presented and the loss in weight, temperature-time change curve, thereby learn its optimized drying time by electronic scales and computer, printer prints.
Referring to Fig. 1, Fig. 1 is the device that the metal powder pulp in the present embodiment is measured drying time.This device is made up of electrothermostat, Precision Electronics Balance, computer and printer.In this device, baking oven bottom is connected with electronic scales by the steel plate of fixation together, also promptly becomes the weight plate on electronic scales surface, and both are connected as a single entity; Be provided with many lattice in the baking oven and place the pallet of powder slurry; Adopt the RS232 serial communication between electronic scales and the computer, it is 2400 that the Bit of data transmission leads, and data transfer mode adopts the Stream mode with the ASCII character continuous output signal; The sampling frequency of weight change is 10 times/second, and the weight change value is delivered to computing machine by the RS232 serial ports, and shows at computer display; Be connected by USB 2.0 or DB 25 interfaces between computer and the printer, during each print data, call Microsoft's Excel software and open the preservation document, and use the figure table function of Excel software, draw out the weight change time curve, and realize data printing and data filing.
The electric heating constant temperature baking oven that device in the present embodiment is used, its temperature range are 30～200 ℃, and temperature fluctuation is ± 1 ℃; Used its model of high-precision electronic scale is a TC-50K type electronic scales, and maximum is weighed as 50Kg, and sensitivity is ± 5g; Employed computer is 586 above computing machines, Win 95 above operating systems.The present invention has the following advantages:
(1), energy savings, can avoid the long energy dissipation that causes of drying time effectively.
(2), improve the quality of products, can effectively avoid problems such as the rolling blank that the drying time process causes is loose, density is low.
Claims (2)
1. definite method of the optimization drying time of a metal slurry used for rolling is characterized in that having following process and step:
A. metal or alloy powder and low amounts of water and the composite powder slurry of cementing agent are placed in the specific electric heating constant temperature baking oven, opening power begins to heat up; The heating-up temperature of setting is 90～110 ℃; Programming rate when initial from the room temperature to the design temperature is 8 ℃ ± 1 ℃/min;
B. after a while, after reaching equilibrium temperature and being design temperature, temperature no longer changes; At the electronic weighting equipment that is connected with baking oven, dynamically show the loss in weight of powder slurry in the powder slurry drying course; When the loss in weight of water under design temperature reaches capacity, promptly when the loss in weight equals zero, show that water removes fully;
C. meanwhile, with computer display screen that electronic weighting equipment links to each other on show related data and temperature-time change curve, and can note by printer prints; Can learn accurate, the optimized drying time of metal powder pulp this moment.
2. the device of definite method of an optimization drying time that is used to realize metal slurry used for rolling according to claim 1, this device is made up of electrothermostat, Precision Electronics Balance, computer and printer; It is characterized in that baking oven bottom is connected with electronic scales by the steel plate of fixation together, also promptly become the weight plate on electronic scales surface, both are connected as a single entity; Be provided with many lattice in the baking oven and place the pallet of powder slurry; Adopt the RS232 serial communication between electronic scales and the computer, it is 2400 that the Bit of data transmission leads, and data transfer mode adopts the Stream mode with the ASCII character continuous output signal; The sampling frequency of weight change is 10 times/second, and the weight change value is delivered to computing machine by the RS232 serial ports, and shows at computer display; Be connected by USB 2.0 or DB 25 interfaces between computer and the printer, during each print data, call Microsoft's Excel software and open the preservation document, and use the figure table function of Excel software, draw out the weight change time curve, and realize data printing and data filing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196574XA CN101750260B (en) | 2009-09-27 | 2009-09-27 | Optimal determining method for drying temperature and time of metal slurry used for rolling |
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| CN200910196574XA CN101750260B (en) | 2009-09-27 | 2009-09-27 | Optimal determining method for drying temperature and time of metal slurry used for rolling |
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| CN101750260A CN101750260A (en) | 2010-06-23 |
| CN101750260B true CN101750260B (en) | 2011-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103438693B (en) * | 2013-08-30 | 2015-03-25 | 中国农业大学 | Automatic control system of gas jet impact drying machine |
| CN103994941A (en) * | 2014-04-01 | 2014-08-20 | 河北中烟工业有限责任公司 | Method for rapidly detecting tobacco moisture |
| CN106706466A (en) * | 2017-01-20 | 2017-05-24 | 广西卓能新能源科技有限公司 | Testing device for solid content of lithium ion battery component |
| CN109282617A (en) * | 2018-09-17 | 2019-01-29 | 镇江市科瑞制样设备有限公司 | A kind of sample moisture predrying machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207030Y (en) * | 2008-05-14 | 2009-03-11 | 张崇益 | Portable moisture tester |
| CN101498639A (en) * | 2008-10-28 | 2009-08-05 | 广东纺织职业技术学院 | Novel methods for measuring moisture in textile fibre |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207030Y (en) * | 2008-05-14 | 2009-03-11 | 张崇益 | Portable moisture tester |
| CN101498639A (en) * | 2008-10-28 | 2009-08-05 | 广东纺织职业技术学院 | Novel methods for measuring moisture in textile fibre |
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