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    • 75. 发明授权
    • Extrusion die for hollow member, mandrel for said extrusion die and male die for said extrusion die
    • 用于中空部件的挤出模具,用于所述挤出模具的芯棒和用于所述挤出模头的阳模
    • US06776019B2
    • 2004-08-17
    • US10033946
    • 2001-12-27
    • Sadahide Yano
    • Sadahide Yano
    • B21C2504
    • B21C25/02B29C47/0004B29C47/0023B29C47/20B29K2705/02B29K2905/12B29K2909/02B29K2909/04
    • An extrusion die for a hollow member includes: a male die for defining a plurality of hollow portions of the hollow member, the male die including an annular base portion and a bridge portion bridging the annular base portion; a female die for defining an outer peripheral portion of the hollow member, the female die being fitted in the annular base portion; and a mandrel having a plurality of forming protrusions, the mandrel being inserted and held in a mandrel holding slit formed in a center of the bridge portion in a fore-and-aft direction. The mandrel includes a mandrel main portion divided into a plurality of divided members and a plurality of rigid pins each arranged in a fore-and-aft direction of the mandrel main portion, and wherein the rigid pins are pinched by and between the divided members of the mandrel main portion with tip portions of the rigid pins protruding from an front end of the mandrel main portion, whereby the tip portions constitute the forming protrusions.
    • 用于中空构件的挤出模具包括:用于限定中空构件的多个中空部分的阳模,阳模包括环形基部和桥接环形基部的桥部; 用于限定中空构件的外周部的阴模,阴模安装在环形基部中; 以及具有多个成形突起的心轴,所述心轴被插入并保持在形成在所述桥接部的中心的心轴保持狭缝的前后方向上。 心轴包括:心轴主体部分,被分成多个分开的构件;以及多个刚性销,每个刚性销布置在心轴主体部分的前后方向上,并且其中刚性销被夹在第 芯棒主体部分具有从芯棒主体部分的前端突出的刚性销的顶端部分,由此尖端部分构成成形凸起。
    • 80. 发明授权
    • Process for making bowls comprising acrylic plastics filled with alumina trihydrate
    • 用于制造包含填充有三水合氧化铝的丙烯酸塑料的碗的方法
    • US06554944B1
    • 2003-04-29
    • US09520540
    • 2000-03-08
    • Chris R. PetersJames E. Young
    • Chris R. PetersJames E. Young
    • B29C5100
    • C08K3/22B29C51/002B29C51/082B29C67/243B29K2033/08B29K2105/16B29K2705/02B29L2031/769C08K2003/2227Y10T156/1052Y10T156/1089
    • Processes for producing durable three-dimensional bowls such as water basins comprising plastics preferably acrylics heavily filled with alumina trihydrate, some embodiments including visible particles such as those sometimes used for simulating nature stone. A preferred process for manufacturing the bowls of such material includes defining a flat rigid blank such as from a larger rectangular bulk sheet in the approximate top outline shape of bowl to be formed, e.g., the blank being oval for an oval bowl and circular for a circular bowl. The blank is provided a smooth side which will be the concave finished and exposed side in use. The blank is heated to a point of softening and of uniform temperature throughout, located within a molding die such as a matched molding die having a female cavity of the desired bowl shape, indexed to the die, but left generally unrestrained so that the heated blank and un-clamped edges thereof are allowed to draw inward to reduce tension loads during forming. Force is applied relatively slowly to the blank, such as from a male portion of the die, to compress the blank into the female cavity and desired bowl shape. The bowl is cooled somewhat, removed from the die, the top edge trimmed to suitable evenness, a drain hole with surrounding bevel is cut in the bowl, an overflow hole is cut near the top edge for bathroom sinks, and sanding and polishing is applied on the exposed side(s).
    • 用于生产耐用的三维碗的方法,例如包含塑料的水盆,优选丙烯酸树脂,其充满氧化铝三水合物,一些实施方案包括可见颗粒,例如有时用于模拟自然石料的那些。 用于制造这种材料的碗的优选方法包括限定平坦的刚性坯料,例如从要形成的碗的大致顶部轮廓形状的较大的矩形体片状物,例如,椭圆形的椭圆形坯料,圆形的,用于 圆碗 该坯料被提供为光滑的侧面,其将在使用中为凹形的和暴露的侧面。 将坯料加热到整个软化点并且具有均匀的温度,位于成型模具内,例如具有所需碗形状的凹腔的匹配模具,其被分配到模具,但是通常不受约束,使得加热的坯料 并且其未夹紧的边缘被允许向内拉,以减少成形期间的张力负载。 对坯料施加相对缓慢的力,例如从模具的阳部分压缩坯料进入阴腔并且期望碗形。 碗被冷却一些,从模具中取出,顶部边缘修剪成合适的均匀度,在碗中切割带有周边斜面的排水孔,在顶部边缘附近切割一个溢流孔,用于浴室水槽,并进行砂磨和抛光 在暴露的一面。