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    • 4. 发明专利
    • Extrusion molding device, and method for producing molding using the same
    • 挤出成型装置以及使用其制造成型的方法
    • JP2012020576A
    • 2012-02-02
    • JP2011134535
    • 2011-06-16
    • Sumitomo Chemical Co Ltd住友化学株式会社
    • KOMORI TERUOYOSHINO ASA
    • B28B3/22
    • B28B3/20B28B3/206B28B3/2672B29C47/0028B29C47/0818B29C47/362B29C47/366B29C47/38B29C47/50B29C47/686B29C47/702B29K2023/06B29K2023/12B29K2033/12
    • PROBLEM TO BE SOLVED: To provide an extrusion molding device capable of producing a molding with sufficiently high dimension accuracy, and to provide a method of producing the molding.SOLUTION: The extrusion molding device includes: a channel for conveying a pasty starting material composition, the cross section of the channel being substantially circular; screws for mixing the starting material composition and conveying the same downstream, the screws being provided upstream from the channel; a die from which a molding formed from the starting material composition is extruded, the die being provided downstream from the channel; a resistance tube for connecting the channel and the die; and a flow volume adjustment plate provided with a plurality of openings that pass therethrough in the thickness direction, the plate being provided between the screws and the die. The ratio L/D of the distance L between the flow volume adjustment plate and the die to the diameter D of the channel is ≥0.5 to ≤5, and the flow volume adjustment plate makes the flow velocity distribution of the starting material composition uniform before the starting material composition enters the die.
    • 要解决的问题:提供一种能够以足够高的尺寸精度制造模制件的挤出成型装置,并提供一种制造模制品的方法。 解决方案:挤出成型装置包括:用于输送糊状原料组合物的通道,通道的横截面基本上为圆形; 用于混合原料组合物并在下游输送螺杆的螺钉,螺杆设置在通道的上游; 将由原料组合物形成的模制物挤出的模具,模具设置在通道的下游; 用于连接通道和模具的电阻管; 以及设置有沿着厚度方向通过的多个开口的流量调节板,所述板设置在所述螺钉和所述模具之间。 流量调节板和模具之间的距离L与通道的直径D之比L / D为≥0.5至≤5,流量调节板使起始材料组成的流速分布在 原料组合物进入模具。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Mold for extruding ceramic material
    • 挤出陶瓷材料的模具
    • JP2009166386A
    • 2009-07-30
    • JP2008007996
    • 2008-01-17
    • Ngk Insulators Ltd日本碍子株式会社
    • SAITO TAKAOMORI TERUYOSHISHIMODA TAKEHIDE
    • B28B3/26
    • B28B3/26B28B3/2672B28B3/269B29C47/0028B29C47/12B29L2031/60C23C28/322C23C28/341C23C28/347
    • PROBLEM TO BE SOLVED: To provide a mold for extruding ceramic materials, which is excellent in abrasion resistance and remarkably reduces a defective molding in a peripheral part tends to occur in extrusion molding of a ceramic molding with a thin cell od high density wall honeycomb structure. SOLUTION: The mold for extruding ceramic material is equipped with: a mouthpiece 1 having a plurality of back holes 9 prepared in a feeding end 22 for introducing an extrusion material, and slits 8 prepared in an extruding end 21 for extruding the material as a ceramic molding in communication with a plurality of back holes 9; a back retaining plate 12 and a back spacer 13, which are arranged at peripheral side of the feeding end 22 of the mouthpiece 1 and adjust feeding amount of the material; and a retaining plate 11 and a spacer 10, which are arranged at peripheral side of the extruding end 21 of the mouthpiece 1 and regulate configuration and size of the ceramic molding; provided that the mouthpiece 1 made flat at least in an area where it laps over the back retaining plate 12 in the feeding end 22, to a surface roughness (Ra) ranging 0.05 μm-10 μm. COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:为了提供耐磨性优异的模具,并且显着降低了周边部分的有缺陷的模塑的倾向于在具有高密度的细胞的陶瓷模制品的挤出成型中发生的陶瓷材料的挤出模具 壁蜂窝结构。 解决方案:用于挤出陶瓷材料的模具配备有:具有在用于引入挤出材料的进料端22中制备的多个后孔9的接口管1和在挤出端21中制备的用于挤出材料的狭缝8 作为与多个后孔9连通的陶瓷模制件; 后挡板12和后间隔件13,其布置在接口管1的进给端22的周边侧并调节材料的进给量; 以及保持板11和间隔件10,其设置在接口管1的挤出端21的周边侧,并且调节陶瓷成形体的构造和尺寸; 只要接口管1至少在其馈送端22中的后保持板12上的区域中平坦化,至0.05μm-10μm的表面粗糙度(Ra)。 版权所有(C)2009,JPO&INPIT