Compression molding device and production method for compression-molded article
A technology of compression molding and manufacturing method, applied in the direction of manufacturing tools, presses, material molding presses, etc., can solve the problems of powder scattering, poor handling, low filling efficiency, etc.
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no. 1 approach
[0034] (1) Configuration of compression molding device
[0035] figure 1 A schematic diagram of the compression molding apparatus 1 according to this embodiment is shown in .
[0036] The compression molding apparatus 1 includes a compression molding die 2 , a first punch 3 , and a second punch 4 provided to face the first punch 3 . The compression molding device 1 further includes a base part 10, two guide posts 11 erected parallel to each other on the base part 10, an upper frame 12 connected to the upper ends of the guide posts 11, and supported between the base part 10 and the upper frame 12. The lower movable plate 13, the middle movable plate 14 and the upper movable plate 15. Such as figure 1 As shown, the lower movable plate 13 , the middle movable plate 14 , and the upper movable plate 15 are arranged parallel to each other in this order from the base portion 10 side. In addition, the lower movable plate 13 , the middle movable plate 14 , and the upper movable pla...
no. 2 approach
[0063] In the description of the second embodiment, the same symbols, names, etc. are attached to the same components as those of the first embodiment, and the description will be omitted or simplified. In addition, in the second embodiment, the same materials or compounds as those described in the first embodiment can be used.
[0064] In the first embodiment, the nitride film is formed on the first pressurizing surface 31, the second pressurizing surface 41, and the inner peripheral surface 21c. In contrast, in the second embodiment, a three-layer structure is formed. The aspect of the laminated film is different.
[0065] In this embodiment, each of the compression molding die 2 of the compression molding device 1, the inner peripheral surface 21c of the first punch 3 and the second punch 4, the first pressing surface 31, and the second pressing surface 41 are formed In the laminated film, the contact angle of water on the outermost film surface is 80 degrees or more. Als...
Embodiment 1
[0092] A powder material having an average particle diameter D50 of 20.71 μm and a bulk density of 0.33 g / ml was compression-molded by the compression-molding apparatus 1 described in the above-mentioned embodiment. The molded article hardness of the compression molded article described in Example 1 was measured. Table 1 shows the properties of the powder material and the hardness of the molded product. In addition, the average particle diameter D50 is a median diameter. The median diameter represents the particle diameter measured by the Nikkiso Co., Ltd. laser diffraction / scattering type particle size analyzer MT3300II as a cumulative distribution, and measures from this cumulative distribution.
[0093] The bulk density was measured using a pseudo-pycnometer JIS-K-5101 manufactured by Tsutsui Physical and Chemical Instruments Co., Ltd.
[0094] The molded product hardness of the compression molded product was measured by attaching a popular digital force gauge DS2-50N man...
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Abstract
Description
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