Platinum crucible polishing device

Abstract

The utility model provides a platinum crucible polishing device which comprises a drilling machine, the output end of the drilling machine is connected with a polishing head, the periphery of the polishing head is coated with a wool layer, and the wool layer is coated with a silicon dioxide nanofiber membrane. A circle of polishing bristles used for polishing the corners of the bottom face and the side face of the platinum crucible are arranged at the corner connecting position of the side face and the bottom face of the polishing head. Silicon dioxide is a common grinding aid, and can effectively remove an oxide layer, dirt and tiny flaws on the surface of the platinum crucible, so that the surface of the crucible is smoother; the wool has a soft fiber structure, can adapt to the curved surface and fine concave-convex parts of the crucible, and can be used for uniformly polishing the surface of the whole crucible, so that the polishing effect is ensured to be consistent; the fiber structure of the wool is very fine and smooth, so that obvious scratches or traces cannot be left on the surface of the platinum crucible; the wool fiber is soft and mild, does not cause excessive heat or friction, and does not damage or destroy the platinum crucible, so that the integrity of the crucible is protected.

Description

Technical Field

[0001] This utility model relates to the technical field of crucible processing, and in particular to a platinum crucible polishing device. Background Technology

[0002] X-ray fluorescence (XRF) fusion is a commonly used experimental method for analyzing and determining the elemental composition of samples. In XRF fusion experiments, the sample typically needs to be heated to a high temperature to melt and form a homogeneous liquid state. This necessitates the use of a platinum crucible as the sample container because platinum possesses high-temperature stability and chemical inertness, enabling it to withstand the melting of samples under high-temperature conditions.

[0003] However, for accurate analytical results, the surface finish of the crucible is crucial. Polishing platinum crucibles aims to remove surface contaminants, oxides, and other impurities to ensure adequate sample contact and minimize potential contamination.

[0004] Polished platinum crucibles provide better surface quality, ensuring more uniform contact between the sample and the crucible, and reducing potential contamination and errors. This helps to obtain accurate analytical results and improves the repeatability and precision of experiments.

[0005] Currently, polishing platinum crucibles typically involves the following steps:

[0006] (1) Cleaning: First, clean the platinum crucible with a mild detergent or solution to remove dirt and impurities from the surface.

[0007] (2) Polishing: Polish the platinum crucible using tools such as fine sandpaper, abrasive cloth, or polishing compound. This removes the oxide layer and minor imperfections from the surface, making the crucible surface smoother.

[0008] (3) Cleaning: Clean the polished platinum crucible again with a cleaning agent or solution to remove particles and residues generated during the polishing process.

[0009] The polishing process suffers from problems such as low efficiency, uneven polishing, and scratches. Utility Model Content

[0010] The present invention aims to provide a platinum crucible polishing device that can achieve efficient and uniform polishing without leaving scratches or causing damage to the platinum crucible during the polishing process.

[0011] Therefore, the technical solution adopted by this utility model is as follows: a platinum crucible polishing device, including a drill, the output end of the drill is connected to a polishing head, the outer periphery of the polishing head is covered with a wool layer, the wool layer is wrapped with a silica nanofiber membrane, and a ring of polishing bristles for polishing the corner of the bottom and side of the platinum crucible is provided at the corner where the side and bottom of the polishing head meet.

[0012] In the above solution: the polishing head is a cylindrical head, and the polishing head is provided with a threaded hole for connecting with the drill rod of the drilling rig. This facilitates the disassembly and replacement of the polishing head.

[0013] In the above scheme, the polishing brush bristles are wrapped with a silica nanofiber membrane. The silica nanofiber membrane is a nanofiber membrane incorporating silica (SiO2) nanoparticles, possessing a continuous fibrous structure, and is an existing technology. It exhibits many favorable physical and chemical properties. This membrane is typically prepared by mixing silica nanoparticles with other materials (such as polymers) using specific preparation techniques (such as electrospinning).

[0014] Silica nanofiber membranes combine the high hardness, high wear resistance, and thermal stability of silica with the good processability and stability of polymer materials. This hybrid nanofiber membrane possesses a high specific surface area and good air permeability and permeability, making it promising for a wide range of applications. It ensures that the nanofiber membrane exhibits excellent performance and stability.

[0015] In the above solution, the polishing bristles are made of PBT material. PBT bristles have high hardness, are not prone to fraying, and are durable, making them suitable for applications requiring wear resistance and long-term use.

[0016] In the above scheme, the length of the polishing brush bristles is between 1 and 2 mm. This allows for better polishing of the chamfered area at the bottom of the crucible.

[0017] Wool fibers are soft and elastic, providing appropriate pressure and friction during the polishing process. They can be used in conjunction with silica nanofiber membranes, allowing silica powder to be evenly distributed on the membrane and generating friction against the platinum crucible surface for efficient polishing.

[0018] This utility model has the following beneficial effects:

[0019] 1. High-efficiency polishing: Silica is a commonly used grinding aid with high hardness and grinding ability. It can effectively remove oxide layers, dirt, and minor imperfections from the surface of platinum crucibles, making the crucible surface smoother.

[0020] 2. Uniform Polishing: Wool has a soft fibrous structure. When a wool layer is wrapped around the polishing head, it can adapt to the curved surfaces and minor unevenness of the crucible. This allows for uniform polishing of the entire crucible surface, ensuring consistent polishing results.

[0021] 3. No scratches: The fine fibers of wool will not leave noticeable scratches or marks on the surface of the platinum crucible. This helps maintain the appearance of the crucible and reduces potential contamination.

[0022] 4. Safety: The wool fibers are soft and gentle, and will not generate excessive heat or friction, thus protecting the integrity of the platinum crucible. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the polishing head in this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1-2 As shown, a platinum crucible polishing device includes a drill 1, a polishing head 2 connected to the output end of the drill 1, a wool layer 3 covering the outer periphery of the polishing head 2, a silica nanofiber membrane 4 wrapped around the wool layer 3, and a ring of polishing bristles 5 for polishing the corner of the bottom and side of the platinum crucible is provided at the corner where the side and bottom of the polishing head 2 meet.

[0027] The polishing head 2 is a cylindrical head, and it is provided with a threaded hole 201 for connecting with the drill rod of the drilling machine 1. This facilitates the disassembly and replacement of the polishing head 2.

[0028] The polishing brush bristles 5 are wrapped with a silica nanofiber membrane 4. The silica nanofiber membrane 4 is a nanofiber membrane incorporating silica (SiO2) nanoparticles, possessing a continuous fibrous structure, and is a current technology. It exhibits many favorable physical and chemical properties. This membrane is typically prepared by mixing silica nanoparticles with other materials (such as polymers) using specific preparation techniques (such as electrospinning).

[0029] Silica nanofiber membrane 4 combines the high hardness, high wear resistance, and thermal stability of silica with the good processability and stability of polymer materials. This hybrid nanofiber membrane has a high specific surface area and good air permeability and permeability, making it promising for a wide range of applications. It ensures that the nanofiber membrane exhibits excellent performance and stability.

[0030] The polishing brush bristles 5 are made of PBT material. PBT bristles have high hardness, are not prone to fraying, and are durable, making them suitable for applications requiring wear resistance and long-term use.

[0031] The polishing brush bristles 5 are 1-2mm long, which allows for better polishing of the chamfered area at the bottom of the crucible.

[0032] Wool fibers are soft and elastic, providing appropriate pressure and friction during the polishing process. They can be used in conjunction with a silica nanofiber membrane 4 to evenly distribute silica powder on the membrane, generating friction against the platinum crucible surface for efficient polishing.

[0033] 1. High-efficiency polishing: Silica is a commonly used grinding aid with high hardness and grinding ability. It can effectively remove oxide layers, dirt, and minor imperfections from the surface of platinum crucibles, making the crucible surface smoother.

[0034] 2. Uniform Polishing: Wool has a soft fibrous structure. When a wool layer 3 is wrapped around the polishing head 2, it can adapt to the curved surface and minor unevenness of the crucible. This allows for uniform polishing of the entire crucible surface, ensuring consistent polishing results.

[0035] 3. No scratches: The fine fibers of wool will not leave noticeable scratches or marks on the surface of the platinum crucible. This helps maintain the appearance of the crucible and reduces potential contamination.

[0036] 4. Safety: The wool fibers are soft and gentle, and will not generate excessive heat or friction, thus protecting the integrity of the platinum crucible.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A platinum crucible polishing apparatus, comprising a drill (1), characterized in that: The output end of the drill (1) is connected to a polishing head (2). The outer periphery of the polishing head (2) is covered with a wool layer (3). The wool layer (3) is wrapped with a silica nanofiber membrane (4). A ring of polishing bristles (5) for polishing the corner of the bottom and side of the platinum crucible is provided at the corner where the side and bottom of the polishing head (2) meet.

2. The platinum crucible polishing apparatus according to claim 1, characterized in that: The polishing head (2) is a cylindrical head, and the polishing head (2) is provided with a threaded hole (201) for connecting with the drill rod of the drilling machine (1).

3. The platinum crucible polishing apparatus according to claim 2, characterized in that: The polishing brush bristles (5) are wrapped with a silica nanofiber membrane (4).

4. The platinum crucible polishing apparatus according to claim 1, characterized in that: The polishing bristles (5) are made of PBT material.

5. The platinum crucible polishing apparatus according to claim 1, characterized in that: The length of the polishing bristles (5) is between 1 and 2 mm.

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