CN111122376A - Tempering effect verification method of tempering mold - Google Patents
Tempering effect verification method of tempering mold Download PDFInfo
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- CN111122376A CN111122376A CN202010013223.7A CN202010013223A CN111122376A CN 111122376 A CN111122376 A CN 111122376A CN 202010013223 A CN202010013223 A CN 202010013223A CN 111122376 A CN111122376 A CN 111122376A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
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Abstract
The invention relates to a toughening effect verification method of a toughening mold, which is characterized by comprising the following steps: the method comprises the following steps: (1) selecting a toughening furnace; (2) selecting a mold; (3) weighing for the first time; (4) tempering and cooling; (5) weighing again; (6) performing data accounting; (7) judging a result; the equipment investment cost is low, the toughening effect verification of the toughening mold can be completed only by investing the electronic scale with the precision meeting the preset display precision requirement, and the cost is saved; the time consumption of labor is not occupied, the labor cost is not increased, and the total time of weighing before and after the die is tempered is not more than 3 minutes; the device does not occupy any space area, can complete related operations in a laboratory, and simplifies the internal space; the principle is accurate, and the measurement is accurate; no side effect and no environmental pollution.
Description
Technical Field
The invention relates to a verification method, in particular to a method for verifying the toughening effect of a toughening mold.
Background
The glass mold has the defects of easy generation of scraping, edge deletion and even breakage and the like due to the characteristics of glass materials in the use process. In the field of optical glass, the glass mold is placed and kept stand for a period of time after being melted at high temperature by using potassium nitrate before the glass mold is used, potassium ions in the potassium nitrate and sodium ions in glass are mutually exchanged and saturated in a free state and then are taken out for use, so that the strength and toughness of the surface of the glass mold can be obviously enhanced, and the defects of scratching and breakage of the glass mold are effectively prevented. However, in the prior art, it is always said that 32429is used for what temperature and time range are adopted in the toughening process of the glass mold so that the ions can reach the optimal state in the exchange state, and no conclusion is made, so that the performance states of the toughened and molded glass are different, and the industry lacks a simple and effective evaluation standard for effectively evaluating the performance state of the toughened glass.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for verifying the toughening effect of a toughening mold.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for verifying the toughening effect of a toughening mold is characterized by comprising the following steps: the method comprises the following steps:
(1) a steel selection furnace: selecting a test toughening furnace;
(2) selecting a mold: selecting sample molds with the diameter size of 70-75mm, reserving the positions of the i sample molds in each tempering furnace, numbering the i sample molds in sequence, and wiping the surfaces of the sample molds clean;
(3) weighing for the first time: before the toughening process is carried out on the sample mould, an electronic scale with preset display precision is used for carrying out primary weighing on each piece, and primary weighing data W0i of the sample mould is recorded according to the serial number of the sample mould;
(4) tempering and cooling: placing the sample mould which is weighed for the first time into a tempering furnace for tempering; taking out the sample die from the tempering furnace after the tempering is finished, and standing and cooling;
(5) and (3) weighing again: reweighing the cooled sample mold by using the same electronic scale with preset display precision, and recording reweighing data W1i of the sample mold according to the serial number of the sample mold;
(6) data checking, namely, correspondingly calculating the weight gain △ Wi of each sample mould one by one according to the serial number of the sample mould, namely W1i-W0 i;
(7) and judging the result, namely judging the relation between the weight increase △ Wi of each sample die and a preset weight increase value △ W, if and only if △ Wi is more than △ W, determining that the toughening effect meets the preset requirement, and if △ Wi is less than or equal to △ W, determining that the toughening effect does not meet the preset requirement.
Further, the sample mold is a sample mold which is not subjected to a toughening process.
Further, the sample mold is a sample mold with a circular cross section.
Furthermore, the number i of the reserved sample molds in each tempering furnace is 2-5, and the sample molds are uniformly distributed in the tempering furnace.
Further, the preset precision requirement of the electronic scale is 0.0001 g.
Further, the preset weight gain value △ W is preset to be 15 mg.
The invention has the beneficial effects that:
(1) the equipment investment cost is low, the toughening effect verification of the toughening mold can be completed only by investing the electronic scale with the precision meeting the preset display precision requirement, and the cost is saved.
(2) The time consumption of labor is not occupied, the labor cost is not increased, and the total time of weighing before and after the die is tempered is not more than 3 minutes.
(3) The device does not occupy any space area, can complete related operations in a laboratory, and simplifies the internal space.
(4) The principle is accurate, and the measurement is accurate.
(5) No side effect and no environmental pollution.
Drawings
FIG. 1 is a flow chart of the steps of a method for verifying the tempering effect of a tempering mold according to the present invention;
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
At present, in the field of optical glass, potassium nitrate is used before a mold is used, the glass mold is placed and kept still for a period of time after being melted at high temperature, K ions in the potassium nitrate and Na ions in glass are mutually exchanged and saturated in a free state and then are taken out for use, and therefore the strength and toughness of the surface of the glass mold can be obviously enhanced.
K ions and NA ions are mutually replaced in a free state, and the weight of the K ions is larger than that of the NA ions, so that the weight of the die can be increased after the NA ions on the surface of the glass die are replaced by the K ions in the toughening process of the sample die. Therefore, whether the exchange quantity of the K ions and the NA ions meets the standard or not can be demonstrated according to the weight increase comparison data before and after the die is tempered.
As shown in fig. 1, a method for verifying tempering effect of a tempering mold includes the following steps:
(1) a steel selection furnace: selecting a test toughening furnace;
(2) selecting a mold: selecting sample molds with the diameter size of 70-75mm, reserving the positions of the i sample molds in each tempering furnace, numbering the i sample molds in sequence, and wiping the surfaces of the sample molds clean;
(3) weighing for the first time: before the toughening process is carried out on the sample mould, an electronic scale with preset display precision is used for carrying out primary weighing on each piece, and primary weighing data W0i of the sample mould is recorded according to the serial number of the sample mould;
(4) tempering and cooling: placing the sample mould which is weighed for the first time into a tempering furnace for tempering; taking the sample die out of the toughening furnace after the toughening is finished, standing and cooling to ensure that the sample die passes through the same toughening environment, and further ensuring that the toughening process of the sample die is consistent;
(5) and (3) weighing again: reweighing the cooled sample mold by using the same electronic scale with preset display precision, and recording reweighing data W1i of the sample mold according to the serial number of the sample mold;
(6) data checking, namely, correspondingly calculating the weight gain △ Wi of each sample mould one by one according to the serial number of the sample mould, namely W1i-W0 i;
(7) and judging the result, namely judging the relation between the weight increase △ Wi of each sample die and a preset weight increase value △ W, if and only if △ Wi is more than △ W, determining that the toughening effect meets the preset requirement, and if △ Wi is less than or equal to △ W, determining that the toughening effect does not meet the preset requirement.
Specifically, the sample mould chooses for use the sample mould that does not pass through the tempering process to avoid the mould because of selecting the tempering, thereby because the tempering layer that the mould surface formed after having been tempered is broken once more and thereby influences intensity and toughness performance effect and stability that this tempering process reaches, and then influences the accurate trend of this sample mould whole tempering effect data.
Specifically, the sample mold is a sample mold with a circular cross section, so that the sample mold is convenient to take and take; preferably, the i-piece sample molds are preferably of the same batch of sample molds of equal thickness and equal density.
Specifically, the number i of the reserved sample molds in each tempering furnace is 2-5, the sample molds are uniformly distributed in the tempering furnace, and the number of the reserved sample molds in each tempering furnace is small, so that stability and accuracy of tempering effect verification data are not facilitated; the large number of the reserved sample molds in each tempering furnace is not beneficial to the stability of the tempering process of each sample mold in each tempering furnace.
Specifically, the preset precision requirement of the electronic scale is 0.0001g, so that the weight difference value of the sample mold before and after toughening can be accurately weighed.
Specifically, the preset weight increase value △ W is preset to be 15mg, and the value is deduced according to the weight increase standard value of a sample die with the diameter size of 70-75mm of the selected Asia-Pacific woolen material after multiple tests.
As a further preference, after obtaining the weight gains △ Wi of the sample moulds in the group i, the weight gains △ Wi of the sample moulds in the group i are sorted from big to small,
the method comprises the steps of respectively recording toughening environment data (such as toughening temperature, steel flower time and the amount of added potassium nitrate) corresponding to the maximum value of the weight gain △ Wi of a sample mold and the minimum value of the weight gain △ Wi of the sample mold, recording the toughening environment data in a current toughening effect verification evaluation report, simultaneously calculating the average value of the weight gain △ Wi of the current sample mold, recording the average value in the current toughening effect verification evaluation report, and using the average value as a basis for adjusting the toughening environment according to data in the multiple toughening effect verification evaluation report in the later period.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A method for verifying the toughening effect of a toughening mold is characterized by comprising the following steps: the method comprises the following steps:
(1) a steel selection furnace: selecting a test toughening furnace;
(2) selecting a mold: selecting sample molds with the diameter size of 70-75mm, reserving the positions of the i sample molds in each tempering furnace, numbering the i sample molds in sequence, and wiping the surfaces of the sample molds clean;
(3) weighing for the first time: before the toughening process is carried out on the sample mould, an electronic scale with preset display precision is used for carrying out primary weighing on each piece, and primary weighing data W0i of the sample mould is recorded according to the serial number of the sample mould;
(4) tempering and cooling: placing the sample mould which is weighed for the first time into a tempering furnace for tempering; taking out the sample die from the tempering furnace after the tempering is finished, and standing and cooling;
(5) and (3) weighing again: reweighing the cooled sample mold by using the same electronic scale with preset display precision, and recording reweighing data W1i of the sample mold according to the serial number of the sample mold;
(6) data checking, namely, correspondingly calculating the weight gain △ Wi of each sample mould one by one according to the serial number of the sample mould, namely W1i-W0 i;
(7) and judging the result, namely judging the relation between the weight increase △ Wi of each sample die and a preset weight increase value △ W, if and only if △ Wi is more than △ W, determining that the toughening effect meets the preset requirement, and if △ Wi is less than or equal to △ W, determining that the toughening effect does not meet the preset requirement.
2. The toughening effect verification method of a toughening mold according to claim 1, wherein: the sample mold is a sample mold which is not subjected to a toughening process.
3. The toughening effect verification method of a toughening mold according to claim 1, wherein: the sample mould is a sample mould with a circular section.
4. The toughening effect verification method of a toughening mold according to claim 1, wherein: the number i of the sample molds reserved in each tempering furnace is 2-5, and the sample molds are uniformly distributed in the tempering furnace.
5. The toughening effect verification method of a toughening mold according to claim 1, wherein: the preset precision requirement of the electronic scale is 0.0001 g.
6. The method for verifying the toughening effect of the toughening mold according to claim 1, wherein the preset weight gain value △ W is preset to be 15 mg.
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| CN202010013223.7A CN111122376A (en) | 2020-01-06 | 2020-01-06 | Tempering effect verification method of tempering mold |
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| CN202010013223.7A CN111122376A (en) | 2020-01-06 | 2020-01-06 | Tempering effect verification method of tempering mold |
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