Cylindrical graphite machining method and machining device
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A processing device, a cylindrical technology, applied in the direction of manufacturing tools, ceramic molding workshops, ceramic molding machines, etc., can solve the problems that graphite electrodes with special structures cannot be produced, and achieve the effect of low cost and cost reduction
Active Publication Date: 2018-07-31
黑龙江澳星能源科技有限公司
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Abstract
Description
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Problems solved by technology
Many mold factories usually have different allowances for rough machining and finishing of copper electrodes, while graphite electrodes use almost the same allowance, which reduces the number of CAD / CAM and machine processing, for this reason alone, It is enough to improve the accuracy of the mold cavity to a large extent. Traditional graphite pressing molds can only produce simple cylindrical ordinary graphite electrodes, and graphite electrodes with special structures cannot be produced.
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specific Embodiment approach 1
[0038] Specific implementation mode 1, such as figure 1 As shown, a processing device for cylindrical graphite according to the present invention includes a base 1, a die holder 2, a die 3, a die cover 4, a connecting plate 5, a punch assembly 6, an ejection mechanism and Ring resistance wire 9,
[0039] The ejector mechanism includes a pull rod 901, a slide block 902, a slideway 903, a limit block 904, a supporting plate 905 and a push rod 907,
[0040] The punch assembly 6 includes a punch holder 601, a punch 602, a boss 603, a first mounting groove 604, a first through hole 605, a pole 606, a collet 607 and a compression spring 608;
[0041] The base 1 is fixed on the press console, the base 1 is fixed with a die holder 2, the upper end surface of the die holder 2 is inlaid with a die 3, and the die holder 2 and the die 3 are connected by a screw , the die 3 is rounded truncated and has a through hole in the center, the die cover 4 is installed in the through hole, and th...
specific Embodiment approach 2
[0043]Specific implementation mode 2, such as figure 2 As shown, the difference between this embodiment and the specific embodiment 1 is that the base 1 is fixed on the press console through the pressing plate 7 and bolts 8 installed on the press console.
specific Embodiment approach 3
[0044] Specific implementation mode 3: as figure 1 and figure 2 As shown, the difference between this embodiment and specific embodiments 1 and 2 is that the lower end of the slideway 903 is connected to the supporting plate 905 through a pin 906 , and a snap spring 909 is installed on the pin 906 .
[0045] A kind of processing method of the processing device of cylindrical graphite, is characterized in that, comprises the following steps:
[0046] Step 1: Prepare graphite core; mix natural graphite powder and needle coke powder, add coal tar pitch and ferric oxide powder, heat and mix thoroughly;
[0047] Step 2: Knead the paste obtained in Step 1, and use a press to press the material into a cylindrical shape, so that it can just pass through the second through hole 401 and be placed in the second installation groove 910. The top of the cylinder and the die sleeve 4 is flush with the top surface;
[0048] Step 3: Weigh 80 parts of graphite powder, 15 parts of high wear-...
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Abstract
The invention relates to a cylindrical graphite machining method and machining device, and belongs to the technical field of graphite electrodes. The cylindrical graphite machining method and machining device aims to solve the problems that a traditional graphite electrode is poor in conductivity and a compression die is not suitable for production of a novel graphite electrode. The machining device is characterized in that a base is fixed on an operation table of a press machine, a female die fixing seat is fixedly arranged on the base, and a female die is inlaid in the upper end surface of the female die fixing seat; the female die fixing seat and the female die are connected through a threaded rod, the female die is of an inverted circular truncated cone shape, and a through hole is formed in the center of the female die; a female die sleeve is arranged in the through hole, and a second through hole is formed in the bottom end of the female die sleeve; an annular resistance wire isarranged in a body of the female die, and the annular resistance wire surrounds the inner wall of the through hole; and a connecting plate is arranged on the output end of the press machine and is located above the female die, a male die assembly is arranged on the lower end face of the connecting plate, and the male die assembly and the female die are oppositely arranged. According to the cylindrical graphite machining method and machining device, the production cost of the graphite electrode can be reduced, and meanwhile, conductivity of the electrode can be improved.
Description
technical field [0001] The invention relates to a processing device, in particular to a cylindrical graphite processing method and a processing device, and belongs to the technical field of graphite electrodes. Background technique [0002] Graphite electrode refers to petroleum coke, pitch coke as aggregate, coal tar pitch as binder, a kind of resistant electrode made by calcination of raw materials, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. High-temperature graphite conductive materials are called artificial graphite electrodes (referred to as graphite electrodes) to distinguish them from natural graphite electrodes prepared from natural graphite. [0003] Graphite electrodes are mainly made of petroleum coke and needle coke, and coal tar pitch is used as a binder. They are made by calcination, batching, kneading, pressing, roasting, graphitization, and machining. They release electric energy in th...
Claims
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Application Information
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