Plug-in seed crystal rack for growing high-purity quartz crystal

Abstract

The invention belongs to the field of crystal growth of quartz crystals, and particularly provides a plug-in type seed crystal rack which comprises a seed crystal rack upright post assembly, a seed crystal rack ring, a suspension cross beam, a V-shaped fixing groove for mounting a seed crystal plate, a gasket and a fixing piece for fixing the seed crystal rack ring and the seed crystal rack upright post assembly, a plurality of mutually parallel suspension cross beams are arranged in the seed crystal frame ring, a plurality of mutually parallel V-shaped fixing grooves are formed in each suspension cross beam, and gaskets are arranged in notches of the V-shaped fixing grooves. According to the invention, a plurality of seed wafers can be hung conveniently, and the adhesion of the grown quartz crystal and the stainless steel fixing groove can be prevented.

Description

Technical Field

[0001] This invention belongs to the field of quartz crystal growth (including crystal purification growth), and specifically relates to an insert-type seed crystal holder that can be used to grow high-purity quartz crystals. Background Technology

[0002] Artificial quartz crystals are grown using a hydrothermal temperature difference method, which requires fixing the seed crystal wafers during the growth process. The traditional process involves welding a seed crystal frame onto an iron rod, punching holes in the seed crystal wafers, inserting iron wires, and binding them to the seed crystal frame. The seed crystal frame assembly, filled with seed crystal wafers, is then placed in a sodium hydroxide (NaOH) solution and heated in a sealed autoclave at a pressure of 130-145 MPa to grow the crystal.

[0003] The crystallization and purification of high-purity silica quartz sand (SiO2) requires reducing the content of various impurity elements after SiO2 is melted into quartz and crystal growth is carried out. Therefore, this process requires suspending more than twice as many seed wafers as normal crystal growth. If the seed wafers are suspended by the traditional seed wafer drilling and binding process, it is time-consuming, labor-intensive, inefficient, and cannot meet the requirements of the low impurity content process of multiple crystallization purification growth.

[0004] Since high-purity crystals are ultimately used in the manufacture of high-purity quartz sand, they need to be crushed. However, in the traditional process, the iron wire inserted into the seed crystal grows into the quartz crystal, so the iron wire needs to be removed before crushing. This further complicates the process.

[0005] Patent CN101717996A, "Parallel Fixing Device for Seed Growth of Artificial Quartz Crystals," discloses a parallel fixing device for seed growth of artificial quartz crystals, relating to a quartz crystal production equipment. Its structural feature is that multiple branches are correspondingly installed on the upper and lower parts of a support, with clamping devices on the corresponding branches. In the clamping device, a single clamp is installed on the upper branch via a clip, and a double clamp is installed on the corresponding lower branch. Because the clamping device is in direct contact with the seed crystal, it may adhere to the clamping device after the crystal has grown, leading to crystal breakage. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an insert-type seed crystal holder for growing high-purity quartz crystals.

[0007] To solve the above-mentioned technical problems, the present invention provides an insertable seed crystal holder, including a seed crystal holder column assembly, a seed crystal holder ring, a suspension beam, a V-shaped fixing groove for mounting the seed crystal, a gasket, and a fixing member for detachably fixing the seed crystal holder ring to the seed crystal holder column assembly; a plurality of parallel suspension beams are arranged inside the seed crystal holder ring, and a plurality of parallel V-shaped fixing grooves are arranged on each suspension beam, with a gasket placed in the groove opening of the V-shaped fixing groove.

[0008] As an improvement to the insert-type seed crystal holder of the present invention: Adjacent suspension beams within the same seed crystal holder ring should maintain a certain distance. This distance should ensure that adjacent seed crystals will not come into contact with each other after they have grown into crystals during actual use. Adjacent V-shaped fixing slots on the same suspension beam maintain a certain distance, which must ensure that adjacent seed wafers will not come into contact with each other after growing into crystals during actual use.

[0009] As a further improvement to the insertable seed crystal holder of the present invention: The seed crystal frame ring includes an upper seed crystal frame ring connected to the top of the seed crystal frame pillar assembly, a lower seed crystal frame ring connected to the bottom of the seed crystal frame pillar assembly, and at least one middle seed crystal frame ring is provided between the upper seed crystal frame ring and the lower seed crystal frame ring. The upper seed crystal frame ring, the lower seed crystal frame ring, and the middle seed crystal frame ring are parallel to each other. V-shaped fixing grooves include inverted V-shaped grooves, X-shaped grooves, and V-shaped grooves; An inverted V-shaped groove is set on the suspension beam of the upper seed crystal ring. A V-shaped groove is set on the suspension beam of the lower seed crystal ring. An X-shaped groove is set on the suspension beam of the seed crystal frame; Gaskets are placed inside the openings of inverted V-grooves, X-grooves, and V-grooves.

[0010] As a further improvement to the insertable seed crystal holder of the present invention: The inverted V-shaped groove on the upper seed crystal holder, the X-shaped groove on the middle seed crystal holder, and the V-shaped groove on the lower seed crystal holder correspond to each other in the vertical direction.

[0011] As a further improvement to the insertable seed crystal holder of the present invention: When there is one seed crystal carrier ring, the seed crystal can be installed in any of the following ways: The upper and lower ends of the seed wafer respectively abut against the opening of the inverted V-shaped groove with a gasket and the upper opening of the X-shaped groove with a gasket; The upper and lower ends of the seed wafer abut against the lower opening of the X-shaped groove with a shim and the opening of the V-shaped groove with a shim, respectively. When the number of seed crystal cages is ≥2, the seed crystal can be installed in any of the following ways: The upper and lower ends of the seed wafer respectively abut against the opening of the inverted V-shaped groove with a pad and the upper opening of the X-shaped groove with a pad closest to the inverted V-shaped groove. The upper and lower ends of the seed wafer respectively abut against the lower opening of the X-shaped groove with a pad located above and the upper opening of the X-shaped groove with a pad located below. The upper and lower ends of the seed wafer abut against the lower opening of the X-shaped groove with a shim, which is closest to the V-shaped groove, and the opening of the V-shaped groove with a shim, respectively.

[0012] Note: The number of seed crystal rings can be determined based on the total length of the pillars and the length of the seed crystal.

[0013] As a further improvement to the insertable seed crystal holder of the present invention: The opening of the inverted V-groove, the upper and lower openings of the X-groove, and the width of the V-groove opening should be equal to the thickness of the grown crystal. The width of the seed crystal frame beam is chosen to be less than the thickness of the grown crystal; that is, less than the width of the aforementioned slot. The purpose is to reduce the obstruction of the entire seed crystal frame to the convection solution inside the autoclave; that is, to minimize the width while ensuring that the seed crystal frame beam can bear the weight of the crystal.

[0014] As a further improvement to the insertable seed crystal holder of the present invention: The seed crystal holder pillar assembly consists of 4 parallel pillars arranged in a cross shape. The 4 pillars are of the same height, and each pillar has several positioning holes. The positioning holes of the 4 pillars are of the same height. The upper seed crystal frame, lower seed crystal frame, and middle seed crystal frame are all provided with connection holes that match the positioning holes on the column. The fastener is a fixing screw; The connection between the upper seed crystal holder ring, lower seed crystal holder ring, middle seed crystal holder ring and the column is achieved by tightening the fixing screws after they pass through the connecting hole and the positioning hole.

[0015] Note: The number of positioning holes on the column should be sufficient to install all the seed crystal holders. In order to facilitate the vertical adjustment of the height of the seed crystal holders relative to the column, the positioning holes can be set in the form of oval holes.

[0016] As a further improvement to the insertable seed crystal holder of the present invention: The seed crystal frame column assembly, seed crystal frame ring, suspension beam, V-shaped fixing groove, and fasteners are all made of 316 stainless steel. The gasket is made of hot-pressed polytetrafluoroethylene film.

[0017] The present invention also provides the use of the above-mentioned insertable seed crystal holder for the growth of high-purity quartz crystals.

[0018] This invention develops a novel quartz crystal seed frame for the multiple crystallization purification and growth process of quartz crystals. The material used is 316 stainless steel, which reduces the impurity content in the hydrothermal temperature difference crystallization environment. The impurity content of 316 stainless steel can be found in the national standards GB / T20878-2024 "Stainless Steel Grades and Chemical Compositions" and GB / T3280-2015 "Cold-Rolled Stainless Steel Sheets and Strips".

[0019] This invention utilizes the adjustment of the distance between the seed crystal holder rings to fix the seed crystal wafers, reducing the need for processes such as drilling, threading, binding, and subsequent removal of the seed crystal wafers. It also facilitates the suspension of multiple seed crystal wafers. Furthermore, since the gaskets are made of thermo-pressed polytetrafluoroethylene film, the grown quartz crystals can be prevented from adhering to the stainless steel fixing groove. At the same time, the fixing pressure of the stainless steel fixing groove on the quartz crystal seed crystal wafers is buffered, and the tightness of the seed crystal wafer fixation can be adjusted by adjusting the number of gasket layers in the groove.

[0020] One difference between this invention and existing technologies is that the clamping device does not directly hold the quartz crystal seed wafer. Instead, the seed wafer is inserted into the corresponding slot of the V-shaped groove, and a hot-pressed PTFE film is placed in the slot. This prevents the seed wafer from directly contacting the stainless steel clamping device, overcoming the adhesion between the grown quartz crystal and the clamping device. Furthermore, the thickness of the shim can be adjusted to ensure the seed wafer is fully fixed and prevent it from breaking due to rigid contact with the fixing device. Note: As is common knowledge, the length of the seed wafer does not increase during the growth process; only the thickness of the seed wafer increases. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a top view of the insert-type seed crystal holder of the present invention, which can be used to grow high-purity quartz crystals; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure; Figure 3 yes Figure 2 A magnified schematic diagram of the end face of the inverted V-groove 4-1 in the diagram; Figure 4 yes Figure 2 An enlarged schematic diagram of the end face of the X-shaped groove 4-2 in the diagram; Figure 5 yes Figure 2 A magnified schematic diagram of the end face of the V-groove 4-3 in the diagram; Figure 6 This is a schematic diagram of the end faces where the inverted V-groove 4-1, X-groove 4-2, and V-groove 4-3 are fixed to the seed wafer 5 and the spacer 6. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto: Example 1: An insert-type seed crystal holder that can be used to grow high-purity quartz crystals, wherein the insert-type seed crystal holder is used to mount seed crystal wafers 5.

[0024] The insertable seed crystal holder includes a seed crystal holder column assembly 1, a seed crystal holder ring 2, a suspension beam 3, a V-shaped fixing groove 4, a gasket 6 (hot-pressed polytetrafluoroethylene film sheet), and fixing screws 7 for fixing the seed crystal holder ring 2 to the seed crystal holder column assembly 1; the V-shaped fixing groove 4 includes an inverted V-shaped groove 4-1, an X-shaped groove 4-2, and a V-shaped groove 4-3.

[0025] The seed crystal holder pillar assembly 1 consists of four parallel pillars 11 arranged in a cross shape. These four pillars are of the same height, and each pillar 11 has several positioning holes at the same height. The positioning holes of the four pillars 11 are preferably oval holes, and positioning marks for positioning can be provided on the oval holes.

[0026] Except for the gasket 6, all other components of the insert-type seed crystal holder (including the column 11, seed crystal holder ring 2, suspension beam 3, V-shaped fixing groove 4, and fixing screw 7) are made of 316 stainless steel.

[0027] Each seed crystal ring 2 has the same structure, as detailed below: The ring frame has connecting holes that match the positioning holes on the column 11. First, adjust the required height position relative to the column 11, and then tighten the fixing screw 7 after passing through the connecting hole and the positioning hole, thereby realizing the connection between the seed crystal ring 2 and the column 11. Since the positioning hole is preferably an oval hole, and the oval hole can be provided with a positioning mark for positioning, it is convenient to adjust the distance between the seed crystal rings 2 up and down, which is more conducive to fixing the seed crystal 5.

[0028] Several parallel suspension beams 3 are set within the ring, with a certain distance between adjacent suspension beams 3. This distance must ensure that adjacent seed crystals 5 will not contact each other after growing into crystals during actual use. The suspension beams 3 are fixedly connected to the seed crystal frame ring 2 by welding. Generally speaking, the distance between the suspension beams 3 should be slightly larger than the lateral dimension (thickness) of the crystal grown from the seed crystal 5.

[0029] The seed crystal ring 2 connected to the top of the pillar 11 is named the upper seed crystal ring 21, the seed crystal ring 2 connected to the bottom of the pillar 11 is named the lower seed crystal ring 23, and the seed crystal ring 2 located between the upper seed crystal ring 21 and the lower seed crystal ring 23 is named the middle seed crystal ring 22. The number of middle seed crystal rings 22 can be determined according to the total length of the pillar 11 and the length of the seed wafer 5. For example, Figure 2 The number of seed crystal rings 22 is 2.

[0030] Therefore, the positioning holes provided on the column 11 must ensure that all seed crystal holder rings 2 can be installed and that the vertical height of the seed crystal holder rings 2 can be adjusted.

[0031] Considering the thickness of the seed wafer 5 and the impact of the aqueous solution in the autoclave during the initial heating stage, this invention employs a V-groove and X-groove structure to fix the seed wafer, as detailed below: Several inverted V-grooves 4-1 are provided on each suspension beam 3 of the upper seed crystal holder ring 21; adjacent inverted V-grooves 4-1 maintain a certain distance, which must ensure that adjacent seed crystal wafers 5 will not contact each other after growing into crystals in actual use; the inverted V-grooves 4-1 are fixedly connected to the suspension beam 3 of the upper seed crystal holder ring 2-1 by welding; a gasket 6 that matches the groove opening is provided in the groove opening of each inverted V-grooves 4-1 (i.e., the gasket 6 can cover the groove opening). Generally speaking, the distance between adjacent inverted V-grooves 4-1 should be slightly larger than the lateral dimension (thickness) of the crystal grown from the seed crystal wafer 5.

[0032] On each suspension beam 3 of the seed crystal frame ring 2-2, there is an X-shaped groove 4-2 that corresponds one-to-one with the inverted V-shaped groove 4-1. The X-shaped groove 4-2 is fixedly connected to the suspension beam 3 of the seed crystal frame ring 2-2 by welding; and a gasket 6 that matches the groove opening is set in the upper and lower two openings of each X-shaped groove 4-2.

[0033] On each suspension beam 3 of the lower seed crystal frame ring 2-3, a V-shaped groove 4-3 is provided that corresponds one-to-one with the X-shaped groove 4-2; the V-shaped groove 4-3 is fixedly connected to the suspension beam 3 of the lower seed crystal frame ring 2-3 by welding; a gasket 6 that matches the groove opening is provided in the groove opening of each V-shaped groove 4-3.

[0034] When the upper part of the seed crystal holder 2-2 corresponds to the upper seed crystal holder 21, the upper opening of the X-shaped groove 4-2 is directly opposite the opening of the inverted V-shaped groove 4-1; when the upper part of the seed crystal holder 2-2 corresponds to another middle seed crystal holder 2-2, the lower opening of the X-shaped groove 4-2 of the upper middle seed crystal holder 2-2 is directly opposite the upper opening of the X-shaped groove 4-2 of the lower middle seed crystal holder 2-2.

[0035] When the lower part of the middle seed crystal holder ring 2-2 corresponds to the lower seed crystal holder ring 2-3, the lower groove opening of the X-shaped groove 4-2 of the middle seed crystal holder ring 2-2 is directly opposite the groove opening of the V-shaped groove 4-3. When the middle seed crystal holder 2-2 corresponds to another middle seed crystal holder 2-2 below it, the lower groove opening of the X-shaped groove 4-2 of the upper middle seed crystal holder 2-2 is directly opposite the upper groove opening of the X-shaped groove 4-2 of the lower middle seed crystal holder 2-2.

[0036] Therefore, each inverted V-groove 4-1 on the upper seed crystal holder ring 2-1, each X-groove 4-2 on the middle seed crystal holder ring 2-2, and each V-groove 4-3 on the lower seed crystal holder ring 2-3 are exactly one-to-one in the vertical direction, that is, they form a mutually complementary relationship.

[0037] Note: To support the weight of the grown crystal, the inverted V-groove 4-1, X-groove 4-2, and V-groove 4-3 are welded to the seed crystal support beam 3. Since the inverted V-groove 4-1, X-groove 4-2, and V-groove 4-3 not only fix the seed wafer 5 but also the grown crystal, the width of the groove opening of the inverted V-groove 4-1, the upper and lower groove openings of the X-groove 4-2, and the groove opening of the V-groove 4-3 are the same as the thickness of the grown crystal of the seed wafer 5. Furthermore, during installation, the centerline of the seed wafer 5 coincides with the centerline of the corresponding groove opening.

[0038] To reduce the obstruction of the entire seed crystal frame to the convection solution inside the autoclave, the width of the seed crystal frame beam 3 is chosen to be slightly smaller than the thickness of the grown crystal (i.e., smaller than the width of the aforementioned slot) while considering the strength of the supporting crystal, thereby reducing the obstruction of the entire seed crystal frame to the convection solution inside the autoclave.

[0039] Because: each inverted V-groove 4-1 has a gasket 6 that matches the groove opening; each X-groove 4-2 has two gaskets that match the groove opening; and each V-groove 4-3 has a gasket 6 that matches the groove opening, and the gasket 6 is a hot-pressed polytetrafluoroethylene film sheet; therefore, the upper and lower ends of the seed crystal 5 are in direct contact with the gasket 6, which can prevent the grown crystal from sticking to the groove opening, and thus prevent the grown crystal from sticking to the seed crystal holder.

[0040] The actual operation steps are as follows: 1. First, use a cleaning machine to perform routine ultrasonic cleaning on the seed crystal holder column assembly 1 (4 columns 11), seed crystal holder ring 2 (upper seed crystal holder ring 2-1, middle seed crystal holder ring 2-2, lower seed crystal holder ring 2-3), seed crystal beam 3, V-shaped fixing groove 4 (inverted V-shaped groove 4-1, X-shaped groove 4-2, V-shaped groove 4-3), seed crystal 5, gasket 6, and fixing screw 7. Then rinse with deionized water multiple times until clean and dry before use.

[0041] In this invention, as is common knowledge, the installation of the entire seed crystal holder and seed crystal 5 should be carried out while wearing dust gloves.

[0042] 2. The installation of seed crystal holder ring 2 begins from the bottom, as detailed below: 2.1 First, the lower seed crystal holder ring 2-3 with a V-shaped groove 4-3 is fitted onto the bottom of the seed crystal holder column assembly 1 and fixed with fixing screws 7, with the groove opening of the V-shaped groove 4-3 facing upwards. A gasket 6 is placed inside the opening of the V-shaped groove 4-3; that is, a hot-pressed polytetrafluoroethylene film sheet is cut to the same size as the groove opening of the V-shaped groove 4-3 to obtain the gasket 6.

[0043] 2.2 The first seed crystal holder ring 2-2, counting from bottom to top, is fitted onto the seed crystal holder column assembly 1 and positioned above the lower seed crystal holder ring 2-3. After adjusting the distance between the lower seed crystal holder ring 2-3 and the middle seed crystal holder ring 2-2 (adjusted according to the height of the seed crystal 5), the middle seed crystal holder ring 2-2 is fixed to the column 11 with fixing screws 7. Gaskets 6 are correspondingly set at the upper and lower slots of the middle seed crystal holder ring 2-2.

[0044] Insert the seed wafer 5 between the V-groove 4-3 of the lower seed wafer holder 2-3 and the lower groove of the X-groove 4-2 of the middle seed wafer holder 2-2. At this time, the V-groove 4-3 of the lower seed wafer holder 2-3 and the lower groove of the X-groove 4-2 of the middle seed wafer holder 2-2 are held against the upper and lower ends of the seed wafer 5 by their respective gaskets 6, thus ensuring that the seed wafer 5 is firmly fixed. To ensure a firm fixation, the thickness of the gaskets 6 can be adjusted appropriately (or the thickness of the gaskets 6 can be adjusted by adjusting the number of layers of gaskets 6). The thickness of a single layer of hot-pressed polytetrafluoroethylene film is 0.3~0.5 mm, and generally 1~3 layers are set.

[0045] The center line of the seed wafer 5 coincides with the center line of the corresponding slot (the same requirement applies below).

[0046] 2.3. The second seed crystal holder ring 2-2, counting from the bottom up, is fitted onto the seed crystal holder column assembly 1 and is located above the first seed crystal holder ring 2-2, counting from the bottom up. After adjusting the distance between the two adjacent seed crystal holder rings 2-2, the second seed crystal holder ring 2-2, counting from the bottom up, is fixed to the column 11 with fixing screws 7.

[0047] Insert the seed wafer 5 between the lower opening of the X-shaped groove 4-2 of the upper seed wafer holder 2-2 and the upper opening of the X-shaped groove 4-2 of the lower seed wafer holder 2-2. At this time, the lower opening of the X-shaped groove 4-2 of the upper seed wafer holder 2-2 and the upper opening of the X-shaped groove 4-2 of the lower seed wafer holder 2-2 are pressed against the upper and lower ends of the seed wafer 5 by their respective shims 6, thereby ensuring that the seed wafer 5 is firmly fixed. The adjustment method of the shims 6 is similar to step 2.2 above.

[0048] 2.4. Following the same procedure, install all the seed crystal holders 2-2 according to the method described in step 2.3, and install the seed crystals 5 accordingly.

[0049] 2.5 Install the seed crystal holder ring 2-1: The upper seed crystal holder ring 21 with an inverted V-shaped groove 4-1 is fitted onto the seed crystal holder column assembly 1 and is located above all the middle seed crystal holder rings 2-2. At this time, the groove (opening) of the inverted V-shaped groove 4-1 faces downward.

[0050] After adjusting the distance between the upper seed crystal holder ring 21 and the nearest middle seed crystal holder ring 2-2, fix the upper seed crystal holder ring 21 to the column 11 with fixing screws 7.

[0051] Insert the seed wafer 5 between the upper opening of the X-shaped groove 4-2 of the middle seed wafer holder 2-2 and the opening of the inverted V-shaped groove 4-1 of the upper seed wafer holder 2-1. At this time, the upper opening of the X-shaped groove 4-2 of the middle seed wafer holder 2-2 and the opening of the inverted V-shaped groove 4-1 of the upper seed wafer holder 2-1 are pressed against the upper and lower ends of the seed wafer 5 by their respective gaskets 6, thereby ensuring that the seed wafer 5 is firmly fixed.

[0052] Note: The upper seed crystal holder ring 2-1, the middle seed crystal holder ring 2-2, and the lower seed crystal holder ring 2-3 are parallel to each other. The adjustment method for the shim 6 is similar to step 2.2 above.

[0053] Ensure that each inverted V-groove 4-1 on the upper seed crystal holder ring 2-1, each X-groove 4-2 on the middle seed crystal holder ring 2-2, and each V-groove 4-3 on the lower seed crystal holder ring 2-3 are exactly one-to-one in the vertical direction, that is, forming a mutually complementary relationship.

[0054] The upper seed crystal holder ring 2-1, the middle seed crystal holder ring 2-2, and the lower seed crystal holder ring 2-3 are parallel to each other.

[0055] Each seed wafer 5 has its upper and lower ends in contact with the pad 6 (hot-pressed polytetrafluoroethylene film 6). This is to prevent the crystal grown from the seed wafer 5 from sticking to the inverted V-groove 4-1, X-groove 4-2, and V-groove 4-3.

[0056] 3. Following standard operating procedures in this industry, the stainless steel seed crystal holder assembly with the seed wafer 5 installed is hoisted into the autoclave for crystal growth. Once the crystal growth cycle reaches the specified time according to the process formula, the power is cut off and the temperature is lowered.

[0057] After the temperature drops to the boiling point, the autoclave is opened, the seed crystal holder is lifted out, the fixing screws 7 of the seed crystal holder ring 2 and the column 11 are loosened, and the seed crystal holder ring 2 is gently tapped to separate the crystal grown from the V-groove 4, thereby removing the crystal.

[0058] 4. The seed crystal holder from which the crystal was removed is then routinely polished, cleaned, and dried for future use.

[0059] Finally, it should be noted that the above examples are merely some specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of the present invention should be considered within the scope of protection of the present invention.

Claims

1. An insert-type seed crystal holder, characterized in that: It includes a seed crystal holder column assembly (1), a seed crystal holder ring (2), a suspension beam (3), a V-shaped fixing groove (4) for mounting the seed crystal (5), a gasket (6), and a fastener that allows the seed crystal holder ring (2) to be detachably fixed to the seed crystal holder column assembly (1); a number of parallel suspension beams (3) are provided in the ring of the seed crystal holder ring (2), and a number of parallel V-shaped fixing grooves (4) are provided on each suspension beam (3), and a gasket (6) is provided in the groove of the V-shaped fixing groove (4).

2. The insert-type seed crystal holder according to claim 1, characterized in that: The adjacent suspension beams (3) located in the same seed crystal frame (2) maintain a certain distance, which must ensure that the adjacent seed crystals (5) will not contact each other after growing into crystals in actual use; The adjacent V-shaped fixing grooves (4) on the same suspension beam (3) maintain a certain distance, which is to ensure that the adjacent seed wafers (5) will not contact each other after growing into crystals in actual use.

3. An insert-type seed crystal holder according to claim 1 or 2, characterized in that: The seed crystal frame ring (2) includes an upper seed crystal frame ring (21) connected to the top of the seed crystal frame pillar assembly (1) and a lower seed crystal frame ring (23) connected to the bottom of the seed crystal frame pillar assembly (1). At least one middle seed crystal frame ring (22) is provided between the upper seed crystal frame ring (21) and the lower seed crystal frame ring (23). The upper seed crystal frame ring (21), the lower seed crystal frame ring (23), and the middle seed crystal frame ring (22) are parallel to each other. The V-shaped fixing groove (4) includes an inverted V-shaped groove (4-1), an X-shaped groove (4-2), and a V-shaped groove (4-3); An inverted V-groove (4-1) is provided on the suspension beam (3) of the upper seed crystal frame (21). A V-groove (4-3) is provided on the suspension beam (3) of the lower seed crystal ring (23). An X-shaped groove (4-2) is provided on the suspension beam (3) of the seed crystal frame (22); Gaskets (6) are placed inside the openings of the inverted V-groove (4-1), X-groove (4-2), and V-groove (4-3).

4. An insert-type seed crystal holder according to claim 3, characterized in that: The inverted V-shaped groove (4-1) on the upper seed crystal holder (21), the X-shaped groove (4-2) on the middle seed crystal holder (22), and the V-shaped groove (4-3) on the lower seed crystal holder (23) correspond to each other in the vertical direction.

5. An insert-type seed crystal holder according to claim 4, characterized in that: When the number of seed crystal holders (22) is 1, the seed crystal (5) can be installed in any of the following ways: The upper and lower ends of the seed chip (5) abut against the opening of the inverted V-shaped groove (4-1) with a gasket (6) and the upper opening of the X-shaped groove (4-2) with a gasket (6), respectively. The upper and lower ends of the seed chip (5) abut against the lower opening of the X-shaped groove (4-2) with a gasket (6) and the opening of the V-shaped groove (4-3) with a gasket (6), respectively. When the number of seed crystal holders (22) is ≥2, the seed crystal (5) can be installed in any of the following ways: The upper and lower ends of the seed chip (5) respectively abut against the opening of the inverted V-shaped groove (4-1) with a pad (6) and the upper opening of the X-shaped groove (4-2) with a pad (6) closest to the inverted V-shaped groove (4-1); The upper and lower ends of the seed chip (5) respectively abut against the lower opening of the X-shaped groove (4-2) with a pad (6) located above and the upper opening of the X-shaped groove (4-2) with a pad (6) located below. The upper and lower ends of the seed chip (5) respectively abut against the lower opening of the X-shaped groove (4-2) with a pad (6) closest to the V-shaped groove (4-3) and the opening of the V-shaped groove (4-3) with a pad (6).

6. An insert-type seed crystal holder according to claim 5, characterized in that: The width of the inverted V-groove (4-1), the upper and lower openings of the X-groove (4-2), and the opening of the V-groove (4-3) should be equal to the thickness of the grown crystal. The width of the seed crystal frame beam (3) is chosen to be smaller than the thickness of the grown crystal.

7. An insert-type seed crystal holder according to claim 6, characterized in that: The seed crystal frame pillar assembly (1) consists of four parallel pillars (11) arranged in a cross shape. The four pillars (11) have the same height, and each pillar (11) has several positioning holes. The positioning holes of the four pillars (11) have the same height. The upper seed crystal frame ring (21), the lower seed crystal frame ring (23), and the middle seed crystal frame ring (22) are all provided with connection holes that match the positioning holes on the column (11); The fastener is a fixing screw (7); By tightening the fixing screw (7) after it passes through the connecting hole and the positioning hole, the connection between the upper seed crystal frame ring (21) / lower seed crystal frame ring (23) / middle seed crystal frame ring (22) and the column (11) is realized.

8. An insert-type seed crystal holder according to claim 1, characterized in that: The seed crystal frame column assembly (1), seed crystal frame ring (2), suspension beam (3), V-shaped fixing groove (4), and fasteners are all made of 316 stainless steel. The gasket (6) is made of hot-pressed polytetrafluoroethylene film.

9. The use of an insert-type seed crystal holder as described in any one of claims 1 to 8, characterized in that: Used for the growth of high-purity quartz crystals.

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