Cold-insert sample preparation mold

Abstract

The utility model relates to a cold-embedded sample preparation mold which comprises a mold body, the mold body is of a cylindrical structure with a closed bottom; a forming cavity is coaxially formed in the mold body; the forming cavity is sequentially provided with a hollow cylinder structure and a hollow circular truncated cone structure with the closed bottom, wherein the hollow cylinder structure and the hollow circular truncated cone structure are coaxially connected from top to bottom. The bottom diameter of the hollow circular truncated cone structure is smaller than the upper diameter, and the upper diameter is the same as the diameter of the hollow cylinder structure. According to the utility model, the chamfering problem of a reflection light sheet sample can be solved from the source, and the problems of potential safety hazards, chamfering precision and the like caused by manual chamfering before the sample is ground are avoided; meanwhile, unnecessary grinding links can be further reduced, the sample preparation work intensity is effectively relieved, unnecessary actions are reduced, the sample grinding efficiency can be greatly improved, and the personal safety is guaranteed as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of detection and analysis technology, and in particular to a cold-mounted sample preparation mold. Background Technology

[0002] Preparing powdered or bulk samples into reflective sheets of specific dimensions using embedding materials (such as epoxy resin, curing agents, etc.) for analysis by instruments such as optical microscopes and electron microscopes is one of the fundamental methods for studying the basic properties of materials, and is widely used in research fields such as metallurgy and mineralogy.

[0003] Reflective light sheets are generally ground manually or with a semi-automatic polishing machine. During the grinding process, the exposed sample edges are relatively sharp, which can easily leave irregular scratches of varying depths on sandpaper and polishing cloth. This results in scratches on the sample observation surface that are difficult to remove, affecting the sample observation effect and image quality. It also leads to an increase in the consumption rate of grinding consumables and a faster consumption rate, thus increasing the sample preparation cost.

[0004] To address these issues, the observation surfaces of the sample are typically chamfered before formal grinding. This involves manually grinding away a portion of the observation surface edges with a grinding wheel to create rounded corners for easier subsequent grinding. While manual chamfering removes sharp edges, it also introduces other problems. For example, it's difficult to control the chamfering precision, leading to over-removal of some sample edges, affecting observation results and the positioning of the electron microscope stage. Furthermore, improper force or positioning during manual chamfering can injure the operator, causing unnecessary safety accidents. Therefore, there is an urgent need for a chamfer-free mold that can safely and effectively solve the chamfering problem of reflective plates from the outset. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a cold-mounting sample preparation mold that can solve the chamfering problem of reflective sheet samples from the source, avoiding the safety hazards and impact on chamfering accuracy caused by manual chamfering before sample grinding.

[0006] The technical solution adopted in this utility model is as follows:

[0007] The present invention provides a cold-mounting sample preparation mold, comprising a mold body; the mold body is a cylindrical structure with a closed bottom; a forming cavity is coaxially arranged inside the mold body; the forming cavity is configured from top to bottom as a hollow cylindrical structure connected coaxially and a hollow frustum structure with a closed bottom; the bottom diameter of the hollow frustum structure is smaller than its upper diameter, and the upper diameter is the same as the diameter of the hollow cylindrical structure.

[0008] Furthermore, the mold body is made of silicone.

[0009] Furthermore, the hypotenuse of the hollow frustum structure is arc-shaped.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention is simple in principle, highly feasible, and easy to operate. It can solve the problem of chamfering of reflective light sheet samples from the source, avoiding the safety hazards and chamfering accuracy problems caused by manual chamfering before sample grinding. At the same time, it can further reduce unnecessary grinding steps, effectively reduce the workload of sample preparation, reduce unnecessary actions, greatly improve sample grinding efficiency, and ensure personal safety as much as possible. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a cold-mounting sample preparation mold proposed in this utility model.

[0013] In the attached drawings, the reference numerals are: 1-mold body; 2-forming cavity. Detailed Implementation

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0016] See appendix Figure 1 This paper presents a specific structure of an embodiment of a cold-mounting sample preparation mold proposed in this utility model. The mold includes a mold body 1; the mold body 1 is a silicone cylindrical structure with a solid, closed bottom. In this embodiment, the outer diameter of the mold body is 40mm, the height is 50mm, and the thickness of the solid bottom is 5mm.

[0017] The mold body 1 has a molding cavity 2 coaxially arranged inside. The molding cavity 2 is divided into upper and lower sections, which are arranged from top to bottom as a hollow cylindrical structure connected coaxially and a hollow frustum structure with a closed bottom. In this embodiment, the diameter of the upper hollow cylindrical structure is 30mm and the height is 43mm; the bottom diameter of the lower hollow frustum structure is 28mm, the top diameter is 30mm and the height is 2mm. The bottom diameter of the hollow frustum structure is smaller than the top diameter, and the top diameter of the hollow frustum structure is the same as the diameter of the hollow cylindrical structure, and the top edge is coaxially connected to the bottom edge of the hollow cylindrical structure. The inclined edge of the hollow frustum structure is an outwardly curved edge that transitions evenly with its top and bottom edges.

[0018] When using this invention: Place the mold body horizontally on the sample preparation table, insert a block sample of the appropriate size into its molding cavity 2, and then add an appropriate amount of embedding agent until the sample is submerged. The embedding thickness should not exceed the height of the main body. Alternatively, mix the powder sample with the embedding agent evenly and pour it into the molding cavity 2. The embedding thickness should also not exceed the height of the main body. After the sample is embedded, place it in a vacuum to cool and solidify. Then, skip the chamfering step and proceed directly to grinding for sample preparation.

[0019] Matters not covered in this utility model are common knowledge.

[0020] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A cold-mounting sample preparation mold, characterized in that: The mold includes a mold body; the mold body is a cylindrical structure with a closed bottom; a forming cavity is coaxially arranged inside the mold body; the forming cavity is arranged from top to bottom as a hollow cylindrical structure connected coaxially and a hollow frustum structure with a closed bottom; the bottom diameter of the hollow frustum structure is smaller than its top diameter, and the top diameter is the same as the diameter of the hollow cylindrical structure.

2. The cold-mounting sample-making mold according to claim 1, characterized in that: The mold body is made of silicone.

3. The cold-mounting sample-making mold according to claim 2, characterized in that: The hypotenuse of the hollow frustum structure is arc-shaped.

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