CN217638792U - High-temperature clamp for cover plate glass crystallization test - Google Patents

Abstract

The high-temperature clamp for the cover plate glass crystallization test comprises two handles and two clamp arms, wherein the two clamp arms are arranged in a cross connection mode, the handles are arranged on the clamp arms, and the handles are symmetrical along the axis of the cross connection position of the two clamp arms; the clamp comprises a clamp arm and is characterized in that one end of the clamp arm, which is provided with a handle, is an active end, the other end of the clamp arm is provided with a clamping end, a platinum sleeve is arranged on the clamping end, and a positioning wire is further arranged on the clamping end. The device is structurally connected through the connection relation of the handle and the forceps arms, the positioning wires and the platinum sleeves are symmetrically arranged, the clamping stability in the use process is guaranteed, and meanwhile, the safety of the device structure in the use process is further guaranteed through the arrangement of the grooves.

Description

High-temperature clamp for cover plate glass crystallization test

Technical Field

The utility model relates to an apron glass performance detection area specifically is a high temperature anchor clamps of glass devitrification test of apron.

Background

For the cover plate glass produced by the overflow downdraw forming process, in the forming process, the viscosity and crystallization performance of the glass liquid are important prerequisites for whether the cover plate glass can be stably formed, and the larger the difference between the viscosity of the glass liquid at a brick tip and the crystallization viscosity of the glass liquid is, the more stable the forming process is.

The crystallization is a process of generating crystals in glass production, and for cover plate glass, the crystallization is avoided in the process of overflowing and pulling down a glass plate, so that the non-uniform thickness and the unstable size of the glass plate are easily caused, and if the crystallization is accumulated to a certain amount, the plate breaking phenomenon can be caused, and the continuous production of a production line is seriously influenced.

Therefore, the method can accurately test the crystallization temperatures of different frits of the cover plate glass, and has certain reference significance for formulation of a cover plate glass production process and control of product quality.

In addition, the crystallization temperature is tested by a gradient temperature furnace method, so that the crystallization degree and the morphology at different test temperatures can be obtained, and an important basis is provided for solving the crystallization defect source in a production line product.

However, in the process of testing the crystallization temperature by adopting the gradient temperature furnace method, in order to maintain the appearance of the high-temperature crystal, lofting and sampling are generally required to be carried out at high temperature. The operation is slightly improper, the operator is easily scalded, and the danger coefficient is higher.

To ensure the accuracy of the sample testing position, a furnace plug is typically used to push the platinum boat containing the sample into the gradient furnace. On one hand, the platinum boat has no clamping force, so that the glass particles are easy to fall onto the D-shaped tube of the gradient furnace from the platinum boat, the glass particles are adhered to the D-shaped tube under the high-temperature condition, and the service life of the D-shaped tube is shortened. Meanwhile, the uneven D-shaped pipe increases the difficulty of lofting, so that the sample is pushed into the furnace and is more prone to falling onto the D-shaped pipe. On the other hand, the platinum boat was pushed into the furnace through the furnace plug, which was slowly pushed into the furnace by hand. The practical situation is that the operation is difficult when wearing the high-temperature resistant gloves, the operation is convenient when wearing the double-layer thread gloves, and the risk of scalding is increased. In addition, when a sample is taken at a high temperature, the existing clamp for clamping the platinum boat is made of stainless steel, the platinum boat can be polluted by directly clamping the platinum boat, impurities are easy to introduce, and the impurities can induce glass to crystallize, so that the test result of the crystallization temperature is influenced.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a high temperature anchor clamps of glass devitrification test of apron aims at solving high temperature operation safety problem, delays test instrument's life to and reduce the test error that high temperature operation produced.

The utility model discloses a realize through following technical scheme: the high-temperature clamp for the cover plate glass crystallization test comprises two handles and two clamp arms, wherein the two clamp arms are arranged in a cross connection mode, the handles are arranged on the clamp arms, and the handles are symmetrical along the axis of the cross connection position of the two clamp arms; the clamp comprises a clamp arm and is characterized in that one end of the clamp arm, which is provided with a handle, is an active end, the other end of the clamp arm is provided with a clamping end, a platinum sleeve is arranged on the clamping end, and a positioning wire is further arranged on the clamping end.

Further, a high-temperature resistant coating is arranged on the driving end.

Further, the length ratio of the handle to the forceps arm is set to 1.

Furthermore, the clamping end and the platinum sleeve are welded.

Furthermore, grooves are formed in the platinum sleeve, and the grooves in the two clamping ends are arranged oppositely.

Furthermore, the addition amount of Pt in the platinum sleeve is 95%, and the addition amount of Au is 5%.

Furthermore, the platinum sleeve is a square sleeve.

Further, the wall thickness of the platinum sleeve is set to be 0.4-0.6 mm.

Furthermore, the recess is provided with a plurality ofly, and a plurality of groove array sets up, the recess sets up on the opposite face of two exposed core.

Further, the distance between the positioning wire and the platinum sleeve is 15 mm.

Compared with the prior art, the utility model discloses following profitable technological effect has: the utility model provides a high temperature anchor clamps of glass devitrification test of apron has realized the structural connection of device through the relation of connection of handle and tong arm, at the location line and the platinum cover that set up through the symmetry, has guaranteed the stability of centre gripping in the use, simultaneously, through the further safety of device structure in the use of having guaranteed of setting up of recess.

Furthermore, the risk of preventing high temperature operation from being scalded can be effectively reduced through the setting of high temperature resistant coating, and simultaneously, the laborsaving effect of device in the use of reality has been greatly guaranteed through the setting of reasonable handle and tong arm length, and very big has made things convenient for the use.

Further, through welded connection's setting between exposed core and the platinum cover, great improvement is the security in the use to through the platinum cover with treat that the clamping structure is with the setting of material, adopt with the same alloy material of platinum boat, can effectively avoid the different materials of high temperature to pollute the platinum boat with the contact of platinum boat, thereby influence the experimental result accuracy, can effectively guarantee device test structure's accuracy.

Further, set up to square sleeve pipe through the platinum cover, can effectually enlarge the clamping face and provide the centre gripping stability, simultaneously, guarantee the result that the centre gripping detected through the wall thickness to, the rethread sets up the recess on with the platinum cover and has greatly improved anti-skidding performance, effectively reduces the slippage, and finally, through the setting of location line and platinum cover distance, can effectively ensure that the sample test position is accurate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a high-temperature clamp for testing devitrification of cover glass according to an embodiment of the present invention;

in the figure: the clamp comprises a handle 1, a clamp arm 2, a positioning wire 3, a groove 4, a platinum sleeve 5, an active end 21 and a clamping end 22.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the preferred embodiment, a high temperature clamp for cover glass devitrification testing is provided, the total length of the clamp is set to 300mm, the total length can be set to range from 200 to 400mm in other embodiments, in this embodiment, the handle 1 is set to be a quarter of the jawarm 2, and in specific use, the ratio of the lengths of 1 and 2 is set to be 1:4 to 1.

As shown in fig. 1, including two articulated tong arm 2 that are the X structure each other, tong arm 2 adopts 310s stainless steel that has good high temperature oxidation resistance and high temperature strength to make, can reduce the risk that high temperature operation is scalded to very big degree, be equipped with the handle 1 of coating high temperature resistant coating on the initiative end 21 of tong arm 2, select high temperature resistant silver powder paint for use in this preferred embodiment to the coating sets up to the one deck, can set up the coating to 1 ~ 4 layers in other embodiments, can effectively prevent high temperature operation scald, simultaneously be equipped with location line 3 on tong arm 2, the distance of location line 3 and platinum cover 5 sets up to 15mm, the setting of location line 3 can ensure that the sample test position is accurate, platinum cover 5 adopts the same alloy material with the platinum boat, the thickness of platinum cover 5 sets up to 0.5mm, can improve the test result accuracy.

The clamp arm 2 is welded with a platinum sleeve 5 at the clamping end 22, the platinum sleeve 5 is in a square tube shape, the platinum sleeve 5 is in a side length side wall thickness 5mm 0.5mm, and the length is set to 20mm in the embodiment.

The platinum sleeve 5 of the utility model adopts the same alloy material as the platinum boat, can ensure that the platinum sleeve is contacted with the platinum boat, can effectively avoid the platinum boat from being polluted by different materials at high temperature, thereby influencing the accuracy of experimental results,

and 5 inboards of platinum cover are equipped with recess 4, and the interval is 1mm between the recess 4, and the degree of depth is 0.5mm, is provided with 19 recesses in this embodiment, recess 4 can be used to the hold platinum boat in order to prevent the platinum boat landing.

In a specific operation process of the embodiment, a sample filled with glass particles is placed in a platinum boat, after a gradient furnace is heated to a test temperature and is kept warm for a period of time, lofting is started, a furnace plug of the gradient furnace is taken out and placed on a refractory brick, a part of the platinum boat is placed on a D-shaped pipe of the gradient furnace, then a handle is driven by force to enable a platinum sleeve 5 to clamp the rest part of the platinum boat which is not placed into the furnace, the rest part of the platinum boat is slowly pushed into the furnace through a clamp until the position of a positioning line 3 of the clamp is pushed to stop, the furnace plug is plugged into a furnace opening again, and lofting operation is completed. After the heat is preserved for a certain time, the sampling is started, the furnace plug is placed on the refractory bricks, the fixture clamps the platinum boat, the platinum boat is rapidly clamped out and placed on the refractory bricks, and then the furnace plug is re-plugged into the furnace mouth, so that the sampling operation can be completed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein. The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (10)

1. The high-temperature clamp for the cover plate glass crystallization test is characterized by comprising two handles (1) and two clamp arms (2), wherein the two clamp arms (2) are arranged in a cross connection mode, the handles (1) are arranged on the clamp arms (2), and the handles (1) are symmetrical along the axis of the cross connection position of the two clamp arms (2); the clamp is characterized in that one end, provided with the handle (1), of the clamp arm (2) is an active end (21), the other end of the clamp arm (2) is provided with a clamping end (22), a platinum sleeve (5) is arranged on the clamping end (22), and a positioning line (3) is further arranged on the clamping end (22).

2. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the active end (21) is provided with a high-temperature resistant coating.

3. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the length ratio of the handle (1) to the clamp arm (2) is set in the range of 1.

4. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the clamping end (22) and the platinum sleeve (5) are welded together.

5. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the platinum sleeve (5) is provided with a groove (4), and the grooves (4) of the two clamping ends (22) are oppositely arranged.

6. The high-temperature jig for cover glass devitrification test according to claim 1, wherein the Pt addition amount in the Pt sheath (5) is 95% and the Au addition amount is 5%.

7. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the platinum sleeve (5) is configured as a square sleeve.

8. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the wall thickness of the platinum sleeve (5) is set to 0.4-0.6 mm.

9. The high-temperature clamp for the cover glass devitrification test according to claim 5, wherein the plurality of grooves (4) are arranged, the plurality of grooves (4) are arranged in an array, and the grooves (4) are arranged on the opposite surfaces of the two clamping ends (22).

10. The high-temperature clamp for the cover glass devitrification test according to claim 1, wherein the positioning line (3) and the platinum sleeve (5) are arranged at a distance of 15 mm.

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