Ceramic chopper and preparation method thereof

Abstract

The invention relates to a ceramic chopper and a preparation method thereof, and belongs to the technical field of nano ceramic materials, the ceramic chopper comprises a chopper body, a welding nozzle and a hole, the welding nozzle and the hole are located at one end of the chopper body, the hole extends along the longitudinal axis of the chopper body and the welding nozzle, a gold thread is arranged in the hole, the inner aperture of the hole is H (Hole size), and the outer diameter of the tip of the welding nozzle is T (Tip diameter); the diameter of the gold thread is WD (Wire Diameter), and H is equal to 1.35 to 1.38 WD; the diameter of the inner tangent angle of the hole is CD (Chamfer Diameter), and CD is equal to 1.5 WD to 1.7 WD; the angle of the inner tangent angle of the hole is CA (Chamfer Angle), and CA is equal to 70 degrees to 120 degrees; the tip end face of the welding nozzle is a working face, the angle of the working face is FA (Face Angle), an outer chamfer is arranged on the outer side of the working face, the radius of the outer chamfer is OR (Oter Radius), the taper angle of the side face of the chopper body (1) is TA, and OR is OR (max) = [(T-CD) / 2] {cos (TA / 2) / cos (TA / 2 + FA)} tan [(90 + TA / 2 + FA) / 2]. A structural shape that is easy to grind is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of nano-ceramic materials, and in particular to a ceramic splitter and a preparation method thereof. Background Art

[0002] The welding ceramic splitter is an axisymmetric ceramic tool with a vertical hole, which belongs to a precision microstructure ceramic component. The welding ceramic splitter is a wire bonding tool used in the wire bonding process in the field of microelectronics processing, and plays an extremely important role in packaging technology. The existing preparation process of the ceramic splitter is to mix the ceramic powder and the binder to prepare the feed material, injection mold the feed material into a splitter green body, sinter the splitter green body to be dense, and finally grind the densified splitter to obtain the finished splitter.

[0003] The public document with the publication number CN115784754A believes that in the prior art, the high hardness and strength of the densified splitter make the grinding process difficult, the grinding efficiency of the splitter is low, and the wear of the grinding wheel is serious. The grinding process is arranged between the biscuit firing process and the sintering process, and the size shrinkage of the green body after biscuit firing is controlled, thereby controlling the densification degree of the green body, which is conducive to improving the grinding efficiency of the ceramic splitter.

[0004] However, the applicant believes that the added biscuit firing process requires additional equipment and space, and the size of the green body after the biscuit firing process does not shrink much, and sintering again after grinding will affect the accuracy of the entire component. Summary of the invention

[0005] The utility model aims to provide a structure shape that is easy to grind, a formula of easy to grind material and a sintering process thereof in order to solve the existing problem that the existing sintered thick splitting cutter has a high degree of densification and is not easy to grind.

[0006] In order to achieve the above technical objectives, the following first technical solution is provided: a ceramic splitting knife, comprising a splitting knife body, a welding nozzle and a hole located at one end of the splitting knife body, wherein the hole extends along the longitudinal axis of the body and the welding nozzle, and a gold wire is arranged in the hole.

[0007] The inner diameter of the hole is H (Hole size), and the outer diameter of the tip of the welding nozzle is T (Tip diameter);

[0008] The diameter of the gold wire is WD (Wire Diameter), H = 1.35-1.38 WD;

[0009] The inscribed angle diameter of the hole is CD (Chamfer Diameter), CD = 1.5 ~ 1.7WD;

[0010] The inscribed angle of the hole is CA (Chamfer Angle), CA = 70° to 120°;

[0011] The tip surface of the welding nozzle is a working surface, the angle of the working surface is FA (Face Angle), there is an outer chamfer on the outside of the working surface, the radius of the outer chamfer is OR (Outer Radius), the cone angle of the side surface of the chopper body (1) is TA, and OR is:

[0012] OR(max)=[(T-CD) / 2]{cos(TA / 2) / cos(TA / 2+FA)}tan[(90+TA / 2+FA) / 2].

[0013] The present application defines the shape of the riving knife in the present application by defining various parameters.

[0014] In an practicable manner, the working surface is provided with a grid surface with the welding nozzle as the geometric center, wherein the grid edge on the grid surface is the highest point and the center of the grid surface is the lowest point, forming a height difference between the two, and the height difference is 8-10 μm.

[0015] In the present embodiment, the working surface is a grid surface, and the grid size cannot be too large, otherwise a uniform concave-convex surface cannot be formed; then the grid size cannot be too small, otherwise the concave-convex surface formed tends to be flat; and in a smaller grid, the center of the grid cannot be made deeper, and the height difference of the present application is preferred.

[0016] In an practicable manner, the following components are included in weight percentage:

[0017] Base ceramics 80% to 95%, auxiliary ceramics 1.5% to 20%, additives 2.5% to 3.8%;

[0018] Among them, the base ceramic is at least one of aluminum oxide and zirconium oxide; the auxiliary ceramic is at least one of zirconium oxide, chromium oxide, erbium oxide, niobium pentoxide, zinc oxide, iron oxide, titanium oxide, calcium oxide, magnesium oxide, silicon carbide, strontium oxide, barium oxide, silicon nitride and tungsten carbide.

[0019] In a second embodiment, a method for preparing a ceramic splitting knife as claimed in any one of claims 1 to 3 comprises the following steps:

[0020] (1) mixing base ceramic powder, auxiliary ceramic powder and additives to obtain a base material;

[0021] (2) placing the base material in step (1) into a drying dish, and then placing it into a drying oven for slow drying to obtain a dried block;

[0022] (3) ball milling the dried block obtained in step (2) at a rotation speed of 200-350 rpm in a planetary ball mill for 6-12 hours, and then sieving to obtain a ceramic powder;

[0023] (4) injection molding the ceramic powder obtained in step (3) to obtain a molded green body, and drying the molded green body;

[0024] (5) subjecting the ceramic green body obtained in step (4) to debinding, sintering and hot isostatic pressing to obtain an alumina ceramic splitting knife;

[0025] (6) Grinding the alumina ceramic splitting knife obtained in step (5) to a predetermined structure and size to obtain a ground alumina ceramic splitting knife.

[0026] In an practicable manner, the sintering conditions in step (5) are: heating rate 5-10°C / min, sintering temperature 1500-1700°C, and holding time 1-6h under N2 or Ar2 protective atmosphere.

[0027] In an practicable manner, the outer diameter grinding conditions of the ceramic splitting tool in the step (6) are: grinding rate 3000-4000 μm3 / s, grinding time 800-1000 s; the length grinding conditions are: grinding rate 80000-100000 μm3 / s, grinding time 20-25 s; the conical surface grinding conditions are: grinding rate 10000-11000 μm3 / s, grinding time 15-20 s.

[0028] In a third embodiment, a ceramic splitting knife drying furnace used in any ceramic splitting knife preparation method of the second embodiment comprises a base and a drying box, wherein the drying box is disposed on the base;

[0029] High temperature air box, which is arranged on the drying box body;

[0030] The air inlet pipe group, the top of which is arranged on the high-temperature wind box, and the bottom of which extends into the drying box;

[0031] A plurality of hot air ducts are arranged in the drying box body, and a plurality of air hole components penetrating the air inlet pipe group are arranged on the hot air ducts. The hot air in the high-temperature wind box is sent into the drying box body through the air inlet pipe group by the high-temperature wind box.

[0032] In an practicable manner, the high temperature wind box includes an inner box, and a plurality of heating pipes are arranged in the inner box;

[0033] An outer box, on which at least one fan system is disposed;

[0034] The porous partition is located below the inner box, connects the inner box and the outer box, and is used to support the inner box.

[0035] In an practicable manner, the drying box includes a shell, a high-temperature wind box is provided above the shell, a box door body is provided at the front and rear parts thereof, and openings are provided at the left and right parts thereof as an inlet and outlet for ceramic splitting knife blanks;

[0036] The inner support comprises vertical beams arranged up and down, frame beams arranged left and right, and cross beams arranged front and back; the cross beams have three layers to divide the drying box into upper and lower drying bin bodies.

[0037] In an practicable manner, the upper drying bin body comprises at least two hot air ducts, the hot air ducts being respectively located at a first hot air duct at the upper part of the upper drying bin body and a second hot air duct at the lower part, the air hole component of the first hot air duct being located on the lower surface of the second hot air duct, and the air hole component of the second hot air duct being located on the upper surface of the second hot air duct;

[0038] The lower drying bin body comprises at least one hot air duct, which is a third hot air duct located at the upper part of the lower drying bin body, and the air hole assembly of the third hot air duct is located on the lower surface of the third hot air duct.

[0039] Compared with the prior art, the utility model has the following beneficial effects:

[0040] The chopper structure formed by the various parameters of the present application is the easiest to grind, and the preparation process adopted by the present application is relatively simple compared to the prior art, eliminating the problem of large structural errors caused by dimensional shrinkage during the drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 1 base, 2 drying box, 3 high temperature air box, 4 air inlet pipe group,

[0042] 21 hot air duct, 22 air hole assembly, 23 upper drying chamber, 24 lower drying chamber

[0043] 31 inner box, 32 heating pipe, 33 outer box, 34 fan system, 35 porous partition, 41 air inlet duct, 341 transmission box, 342 motor, 343 rotating shaft,

[0044] Figure 1 This is a schematic diagram of the overall structure of Embodiment 3;

[0045] Figure 2 This is a front view of the exit of Embodiment 3;

[0046] Figure 3 for Figure 2 Sectional view at AA in the middle; DETAILED DESCRIPTION

[0047] Embodiment 1, a ceramic splitting knife, comprising a splitting knife body, a welding nozzle and a hole located at one end of the splitting knife body, wherein the hole extends along the longitudinal axis of the body and the welding nozzle, and a gold wire is arranged in the hole.

[0048] The inner diameter of the hole is H (Hole size), and the outer diameter of the tip of the welding nozzle is T (Tip diameter);

[0049] The diameter of the gold wire is WD (Wire Diameter), H = 1.35-1.38 WD;

[0050] The inscribed angle diameter of the hole is CD (Chamfer Diameter), CD = 1.5 ~ 1.7WD;

[0051] The inscribed angle of the hole is CA (Chamfer Angle), CA = 70° to 120°;

[0052] The tip surface of the welding nozzle is a working surface, the angle of the working surface is FA (Face Angle), there is an outer chamfer on the outside of the working surface, the radius of the outer chamfer is OR (Outer Radius), the cone angle of the side surface of the chopper body (1) is TA, and OR is:

[0053] OR(max)=[(T-CD) / 2]{cos(TA / 2) / cos(TA / 2+FA)}tan[(90+TA / 2+FA) / 2].

[0054] The present application defines the shape of the riving knife in the present application by defining various parameters.

[0055] In this embodiment, the working surface is provided with a grid surface with the welding nozzle as the geometric center, wherein the grid edge on the grid surface is the highest point and the center of the grid surface is the lowest point, and a height difference is formed between the two, and the height difference is 8-10 μm.

[0056] In this embodiment, the working surface is a grid surface, and the grid size cannot be too large, otherwise a uniform concave-convex surface cannot be formed; then the grid size cannot be too small, otherwise the concave-convex surface formed tends to be flat; and in a smaller grid, the center of the grid cannot be made deeper, and the height difference of this application is preferred.

[0057] In this embodiment, the following components are included in weight percentage:

[0058] Base ceramics 80% to 95%, auxiliary ceramics 1.5% to 20%, additives 2.5% to 3.8%;

[0059] Among them, the base ceramic is at least one of aluminum oxide and zirconium oxide; the auxiliary ceramic is at least one of zirconium oxide, chromium oxide, erbium oxide, niobium pentoxide, zinc oxide, iron oxide, titanium oxide, calcium oxide, magnesium oxide, silicon carbide, strontium oxide, barium oxide, silicon nitride and tungsten carbide.

[0060] Embodiment 2, a method for preparing the ceramic splitting knife as described in Embodiment 1, characterized in that it comprises the following steps:

[0061] (1) mixing base ceramic powder, auxiliary ceramic powder and additives to obtain a base material;

[0062] (2) placing the base material in step (1) into a drying dish, and then placing it into a drying oven for slow drying to obtain a dried block;

[0063] (3) ball milling the dried block obtained in step (2) at a rotation speed of 200-350 rpm in a planetary ball mill for 6-12 hours, and then sieving to obtain a ceramic powder;

[0064] (4) injection molding the ceramic powder obtained in step (3) to obtain a molded green body, and drying the molded green body;

[0065] (5) subjecting the ceramic green body obtained in step (4) to debinding, sintering and hot isostatic pressing to obtain an alumina ceramic splitting knife;

[0066] (6) Grinding the alumina ceramic splitting knife obtained in step (5) to a predetermined structure and size to obtain a ground alumina ceramic splitting knife.

[0067] In an practicable manner, the sintering conditions in step (5) are: heating rate 5-10°C / min, sintering temperature 1500-1700°C, and holding time 1-6h under N2 or Ar2 protective atmosphere.

[0068] In an practicable manner, the outer diameter grinding conditions of the ceramic splitting tool in the step (6) are: grinding rate 3000-4000 μm3 / s, grinding time 800-1000 s; the length grinding conditions are: grinding rate 80000-100000 μm3 / s, grinding time 20-25 s; the conical surface grinding conditions are: grinding rate 10000-11000 μm3 / s, grinding time 15-20 s.

[0069] Embodiment three, as Figure 1 , Figure 2 and Figure 3As shown, it is used in step (4) of the second embodiment to dry the formed raw embryo. It comprises a base 1, a drying box 2 is arranged on the base 1, two high-temperature air boxes 3 are arranged on the drying box 2, and an air inlet pipe group 4 is arranged between each high-temperature air box 3 and the drying box 2. The top of the air inlet pipe group 4 is arranged on the high-temperature air box 3, and the bottom extends into the drying box 2. A plurality of hot air ducts 21 are arranged in the drying box 2, and a plurality of air hole components 22 penetrating the air inlet pipe group 4 are arranged on the hot air duct 21, so that the hot air in the high-temperature air box 3 can be sent into the drying box 2 by the high-temperature air box 3 through the air inlet pipe group 4.

[0070] In this embodiment, the high temperature wind box 3 includes an inner box 31, and a plurality of heating tubes 32 are arranged in the inner box 31. In this embodiment, four heating tubes 32 are evenly arranged above the air inlet of the hot air duct 21. The heating tube 32 heats the air in the inner box 31 by electric heating. Since the heating tube 32 of the present application is made of aluminum alloy, the maximum use temperature of the heating tube 32 is preferably 260°C. This temperature is enough to evaporate the mixed liquid, but it is still a certain distance from the temperature for sintering the ceramic splitting knife embryo. Therefore, the main function of this drying stage is to quickly evaporate the liquid in the ceramic splitting knife embryo and keep the volume of the ceramic splitting knife embryo at its original size.

[0071] The outer box 33 is also provided with at least one fan system 34, which is provided on the left and right sides of the outer box 33, wherein the number of the fan systems 34 follows the number of the air inlet ducts 41 in the air inlet duct group 4. The outer box 33 also includes a porous partition 35, which is located below the inner box 31, connects the inner box 31 and the outer box 33, and is used to support the inner box 31, and the partition 35 is provided with multiple holes to reduce heat conduction and ensure the temperature of the inner box 31 is stable.

[0072] In this embodiment, the drying box 2 includes a shell 21, and a high-temperature bellows 3 is provided above the shell 21. The front and rear parts thereof are provided with a box door body 22, and the left and right parts thereof are provided with openings as the inlet and outlet of the ceramic splitting knife blank. In this embodiment, the right end is the inlet end and the left end is the outlet end; the high-temperature bellows 3 is placed above the shell 21 because in the factory, hot air gathers above the entire factory building. The hot air directly extracted from the top can be quickly heated by the heating pipe 32 and put into use, thereby preventing the hot air from being directly sent into the drying box 2 due to uneven heating.

[0073] The drying box body 2 further comprises an inner support 22, which comprises vertical beams arranged up and down, frame beams arranged left and right, and cross beams arranged front and back; the cross beams have three layers to divide the drying box body 2 into upper and lower drying chamber bodies.

[0074] Among them, the upper drying bin body 23 includes two hot air ducts 21, and the hot air ducts 21 are respectively located in a first hot air duct at the upper part and a second hot air duct at the lower part of the upper drying bin body 23, the air hole component 22 of the first hot air duct is located on the lower surface of the second hot air duct, and the air hole component 22 of the second hot air duct is located on the upper surface of the second hot air duct.

[0075] The lower drying bin body 24 includes a hot air duct 21, which is located at the third hot air duct on the upper part of the lower drying bin body 24, and the air hole component 22 of the third hot air duct is located on the lower surface of the third hot air duct.

[0076] In this embodiment, the specific structure of the fan system 34 is that the fan system 34 includes a transmission box 341, which is fixed on the outer surface of the high-temperature wind box 3, and a motor 342 is fixed above the upper surface of the transmission box 341; and also includes a rotating shaft 343, which is located in the rotating box 341, and one end of the rotating shaft 343 is provided with a turbine blade located between the inner box 31 and the outer box 33, and the other end is provided with a pulley, and the pulley is connected to the motor 342 through a belt. One of the transmission boxes 341 is matched with an air inlet duct 41, that is, the turbine blade is located in the air inlet duct 41, and the air inlet duct 41 is matched with the first hot air duct or the second hot air duct or the third hot air duct.

[0077] In this embodiment, a placement table is provided between the entrance and exit of the upper drying bin 23 and the lower drying bin 24 to ensure that the dried products have sufficient space for storage.

[0078] In this embodiment, a high-temperature wind box 3 is preferably connected to a hot air duct 21, that is, the high-temperature wind box 3 at the left end is connected to the third hot air duct in the lower drying warehouse 24, and the high-temperature wind box 3 at the right end is connected to the first hot air duct in the upper drying warehouse 23. This design allows the product entering the drying box 2 to heat up quickly, because the third hot air duct is located in the lower drying warehouse 24, and the hot air will heat the upper drying warehouse 23 during the rising process, so that the upper drying warehouse 23 can always be in a state of temperature. In this preferred solution, the second hot air duct is in a closed state.

[0079] In this embodiment, the drying oven is used to dry the product at a low temperature, thereby ensuring that the product will not be severely deformed in the next drying step.

[0080] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0081] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this patent application.

[0082] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0083] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0084] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A ceramic splitting knife, comprising a splitting knife body, a welding nozzle and a hole at one end of the splitting knife body, wherein the hole extends along the longitudinal axis of the body and the welding nozzle, and a gold wire is arranged in the hole, It is characterized in that The inner diameter of the hole is H (Hole size), the outer diameter of the tip of the welding nozzle is T (Tip diameter); the diameter of the gold wire is WD (Wire Diameter), H = 1.35 ~ 1.38WD; The inscribed angle diameter of the hole is CD (Chamfer Diameter), CD = 1.5 ~ 1.7WD; The inscribed angle of the hole is CA (Chamfer Angle), CA = 70° to 120°; The tip surface of the welding nozzle is a working surface, the angle of the working surface is FA (Face Angle), there is an outer chamfer on the outside of the working surface, the radius of the outer chamfer is OR (Outer Radius), the cone angle of the side surface of the chopper body (1) is TA, and OR is:

2. The ceramic splitting knife according to claim 1, characterized in that: The working surface is provided with a grid surface with the welding nozzle as the geometric center, wherein the grid edge on the grid surface is the highest point and the center of the grid surface is the lowest point, and a height difference is formed between the two, and the height difference is 8-10 μm.

3. The ceramic splitting knife according to claim 1 or 2, characterized in that: Contains the following components in percentage by weight: Base ceramics 80% to 95%, auxiliary ceramics 1.5% to 20%, additives 2.5% to 3.8%; Among them, the base ceramic is at least one of aluminum oxide and zirconium oxide; the auxiliary ceramic is at least one of zirconium oxide, chromium oxide, erbium oxide, niobium pentoxide, zinc oxide, iron oxide, titanium oxide, calcium oxide, magnesium oxide, silicon carbide, strontium oxide, barium oxide, silicon nitride and tungsten carbide.

4. A method for preparing a ceramic splitting knife as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: (1) mixing base ceramic powder, auxiliary ceramic powder and additives to obtain a base material; (2) placing the base material in step (1) into a drying dish, and then placing it into a drying oven for slow drying to obtain a dried block; (3) ball milling the dried block obtained in step (2) at a rotation speed of 200-350 rpm in a planetary ball mill for 6-12 hours, and then sieving to obtain a ceramic powder; (4) injection molding the ceramic powder obtained in step (3) to obtain a molded green body, and drying the molded green body; (5) subjecting the ceramic green body obtained in step (4) to debinding, sintering and hot isostatic pressing to obtain an alumina ceramic splitting knife; (6) Grinding the alumina ceramic splitting knife obtained in step (5) to a predetermined structure and size to obtain a ground alumina ceramic splitting knife.

5. The method for preparing a ceramic splitting knife according to claim 4, characterized in that: The sintering conditions in step (5) are: heating rate 5-10°C / min, sintering temperature 1500-1700°C, and holding time 1-6h under N2 or Ar2 protective atmosphere.

6. The method for preparing a ceramic splitting knife according to claim 4, characterized in that: The outer diameter grinding conditions of the ceramic splitting cutter in step (6) are: grinding rate 3000-4000 μm 3 / s, grinding time 800-1000s; the conditions for length grinding are: grinding rate 80000-100000μm3 / s, grinding time 20-25s; the conditions for cone grinding are: grinding rate 10000-11000μm3 / s, grinding time 15-20s.

7. A ceramic splitting knife drying furnace used in the ceramic splitting knife preparation method according to any one of claims 4 to 6, comprising a base (1), characterized in that: A drying box (2), wherein the drying box (2) is arranged on the base (1); A high-temperature wind box (3), wherein the high-temperature wind box (3) is arranged on the drying box body (2); An air inlet pipe group (4), wherein the top end of the air inlet pipe group (4) is arranged on the high-temperature wind box (3) and the bottom end extends into the drying box body (2); A plurality of hot air ducts (21) are arranged in the drying box body (2), and a plurality of air hole components (22) penetrating the air inlet pipe group (4) are arranged on the hot air ducts (21). The hot air in the high-temperature wind box (3) is sent into the drying box body (2) by the high-temperature wind box (3) through the air inlet pipe group (4).

8. The ceramic splitting knife drying furnace according to claim 7, characterized in that: The high-temperature wind box (3) comprises an inner box (31), and a plurality of heating tubes (32) are arranged in the inner box (31); An outer box (33), wherein at least one fan system (34) is disposed on the outer box (33); A porous partition (35) is located below the inner box (31), connects the inner box (31) and the outer box (33), and is used to support the inner box (31).

9. The ceramic splitting knife drying furnace according to claim 8, characterized in that: The drying box (2) comprises a shell (21), the high-temperature wind box (3) is provided above the shell (21), the front and rear parts thereof are provided with box door bodies (22), and the left and right parts thereof are provided with openings serving as inlets and outlets for ceramic splitting knife blanks; The inner support (22) comprises vertical beams arranged up and down, frame beams arranged left and right, and cross beams arranged front and back; the cross beams have three layers to divide the drying box body (2) into upper and lower drying chamber bodies.

10. The ceramic splitting knife drying furnace according to claim 9, characterized in that: The upper drying bin (23) comprises at least two hot air ducts (21), wherein the hot air ducts (21) are respectively located at a first hot air duct at the upper part and a second hot air duct at the lower part of the upper drying bin (23), the air hole assembly (22) of the first hot air duct is located on the lower surface of the second hot air duct, and the air hole assembly (22) of the second hot air duct is located on the upper surface of the second hot air duct; The lower drying bin (24) comprises at least one hot air duct (21), the hot air duct (21) being a third hot air duct located at the upper part of the next drying bin (24), and the air hole assembly (22) of the third hot air duct being located on the lower surface of the third hot air duct.

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