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    Extruder feed throat having hardened tiles on internal surfaces
    1.
    发明授权
    Extruder feed throat having hardened tiles on internal surfaces 有权
    挤出机在内表面上具有硬化砖的进料喉

    公开(公告)号：US09132579B2

    公开(公告)日：2015-09-15

    申请号：US14070924

    申请日：2013-11-04

    申请人： Davis-Standard LLC

    发明人： Thomas J. Oravits

    IPC分类号： B29C47/10 ,  B29C47/08

    CPC分类号： B29C47/0849 ,  B29C47/083 ,  B29C47/10

    摘要： A feed throat for an extruder device includes a body having an inlet defined by a longitudinal opening along a side of the body and an outlet positioned at an end of the body. The body has a substantially cylindrical interior surface which has a plurality of raised surfaces which extend radially inward from and longitudinally along the interior surface. One or more hardened tiles are secured to one or more of the raised surfaces.

    摘要翻译： 用于挤出机装置的进料喉部包括具有由沿着主体侧面的纵向开口限定的入口的主体和位于主体的端部处的出口。 主体具有基本上圆柱形的内表面，其具有多个从内表面径向向内延伸的纵向延伸的凸起表面。 一个或多个硬化砖被固定到一个或多个凸起表面。

    Method of coating dual-worm extruder bores
    2.
    发明授权
    Method of coating dual-worm extruder bores 失效
    双蜗杆挤出机孔的涂布方法

    公开(公告)号：US4327859A

    公开(公告)日：1982-05-04

    申请号：US127424

    申请日：1980-03-05

    申请人： Friedrich Theysohn

    发明人： Friedrich Theysohn

    IPC分类号： B29B7/00 ,  B23K20/08 ,  B29C47/00 ,  B29C47/40 ,  B29C47/66

    CPC分类号： B23K20/085 ,  B29C47/0849

    摘要： A method of providing a wear-resistant layer on the inner bore faces of the housing of a dual-worm extruder having two longitudinally communicating parallel bores for accommodating extruder worms therein. According to the method, a relatively soft sheet metal blank and a relatively hard, wear-resistant sheet metal blank are metallurgically bonded to one another in a face-to-face relationship, then the thus obtained "sandwich" is deformed into two longitudinally open tubular blanks, with the relatively soft sheet metal blank forming the outer, convex side of each tubular blank. Thereafter, the tubular blanks are welded to one another along respective longitudinal edges thereof for obtaining a composite body having a cross-sectional outline of a FIG. 8, generally corresponding to, but being smaller than the cross-sectional outline of the bores. Then the composite body is introduced into the housing in a substantially coaxial relationship with the bores, and an explosive is placed in the space surrounded by the composite body and the explosive is ignited for effecting a plating of the inner bore faces with the composite body.

    摘要翻译： 在具有两个纵向连通的平行孔的双蜗杆挤出机的壳体的内孔面上提供耐磨层以在其中容纳挤出机蠕虫的方法。 根据该方法，相对软的金属板坯和相对硬的耐磨的金属板坯以面对面的关系彼此冶金结合，由此获得的“夹层”变形为两个纵向开口 管状坯料，相对软的金属板坯形成每个管状坯料的外侧凸面。 此后，管状坯料沿着其各自的纵向边缘彼此焊接，以获得具有图1的横截面轮廓的复合体。 8，通常对应于但小于孔的横截面轮廓。 然后将复合体以与孔的基本上同轴的关系引入壳体中，并且将炸药放置在由复合体包围的空间中，并且爆炸物被点燃以实现内孔面与复合体的电镀。

    Method for making an extruder sleeve
    4.
    发明授权
    Method for making an extruder sleeve 失效
    制造挤出机套筒的方法

    公开(公告)号：US06195866B1

    公开(公告)日：2001-03-06

    申请号：US09198465

    申请日：1998-11-24

    申请人： Shin-Fa Chang

    发明人： Shin-Fa Chang

    IPC分类号： B23P1102

    CPC分类号： B29C47/0847 ,  B23P11/025 ,  B29C47/0009 ,  B29C47/0849 ,  Y10S29/019 ,  Y10S29/021 ,  Y10S29/038 ,  Y10S29/048 ,  Y10T29/49865 ,  Y10T29/49893 ,  Y10T29/49899 ,  Y10T29/49995

    摘要： A method for making an 8-shaped hole in a bimetallic sleeve, including the steps of preparing two bimetallic tubes, each tube having substantially the same dimension; and also preparing a rear sleeve part, and a front sleeve part; fixing each tube with a plurality of clamping blocks having openings on one side; moving each clamped bimetal tube to a thread cut machine, adjusting the spindle of the thread cut machine to move parallel to the openings on one side of the clamping blocks, and then cutting the clamped tube to form a tube of C-shaped cross section; detaching said tube of C-shaped cross section from said plurality of clamping blocks, and clamping two of said tube of C-shaped cross section together with two fixtures having an 8-shaped cross section; applying spot welding at joints of said two tubes of C-shaped cross section for 6-8 spots to form an 8-shaped hole bushing, and then detaching said two fixtures of 8-shaped cross section; heating the rear sleeve part in a heating furnace for 3-5 hours to reach a temperature of 300-400° C. and a thermal expansion of 0.3-0.5 mm, and then inserting the 8-shaped bushing into the expanded rear sleeve part; and fastening the front sleeve part to the rear sleeve part.

    摘要翻译： 一种用于在双金属套筒中制造8形孔的方法，包括制备两个双金属管的步骤，每个管具有基本上相同的尺寸; 并且还制备后套筒部分和前套筒部分; 用多个在一侧具有开口的夹紧块固定每个管; 将每个夹紧的双金属管移动到切线机上，调节切线机的主轴平行于夹紧块一侧的开口移动，然后切割夹紧的管，形成C形横截面的管; 从所述多个夹紧块中拆下所述C形截面管，并将两个所述C形横截面管夹紧两个具有8形截面的夹具; 在所述两个C形横截面管的接头处施加点焊，用于6-8个点，以形成8个孔套管，然后拆卸所述两个8形截面的夹具; 在加热炉中加热后套筒部分3-5小时，达到300-400℃的温度和0.3-0.5mm的热膨胀，然后将8形衬套插入扩展的后套筒部分; 并将前套筒部分紧固到后套筒部分。

    BARREL COOLING AND HEATING SYSTEM FOR SCREW EXTRUDER
    7.
    发明申请
    BARREL COOLING AND HEATING SYSTEM FOR SCREW EXTRUDER 有权
    螺杆挤出机的棒式冷却和加热系统

    公开(公告)号：US20110063939A1

    公开(公告)日：2011-03-17

    申请号：US12882991

    申请日：2010-09-15

    申请人： Babu Padmanabhan

    发明人： Babu Padmanabhan

    IPC分类号： B29B7/80 ,  B01F7/02 ,  B29B7/82

    CPC分类号： B29B7/48 ,  B01F15/00928 ,  B29B7/82 ,  B29C47/0009 ,  B29C47/0822 ,  B29C47/0827 ,  B29C47/0835 ,  B29C47/0849 ,  B29C47/0864 ,  B29C47/0866 ,  B29C47/0877 ,  B29C47/40 ,  B29C47/66 ,  B29C47/662 ,  B29C47/82 ,  B29C47/822 ,  B29C47/825

    摘要： An extruder barrel section is disclosed. The extruder barrel section comprises of a first barrel pad and a second barrel pad. The first and second barrel pad co-operating to define a recess configured to receive an extruder liner. The length of the first and second barrel pad is less than the length of the extruder liner such that the extruder liner defines an end surface that projects beyond the extruder barrel section on at least one side. The end surface is configured to abut the end surface of another extruder liner. The extruder barrel section further comprises of a locking structure configured to lock the first barrel pad to the second barrel pad with the extruder liner therebetween.

    摘要翻译： 公开了一种挤出机机筒部分。 挤出机筒部分包括第一筒状垫和第二筒状垫。 第一和第二桶垫协同操作以限定构造成接收挤出机衬套的凹部。 第一和第二桶形垫的长度小于挤出机衬套的长度，使得挤出机衬套限定在至少一侧上突出超过挤出机筒段的端面。 端面构造成邻接另一个挤出机衬套的端表面。 挤出机筒部还包括锁定结构，其被构造成将第一筒垫锁定到第二筒垫，挤出机衬垫在其间。

    Return flow shut-off device for an injection unit in an injection moulding machine
    10.
    发明授权
    Return flow shut-off device for an injection unit in an injection moulding machine 失效
    注射成型机中注射单元的回流切断装置

    公开(公告)号：US6155816A

    公开(公告)日：2000-12-05

    申请号：US29555

    申请日：1998-02-25

    申请人： Otto Urbanek ,  Peter Baldinger ,  Reinhold Ebner ,  Walther Pitscheneder ,  Elmar Brandstatter

    发明人： Otto Urbanek ,  Peter Baldinger ,  Reinhold Ebner ,  Walther Pitscheneder ,  Elmar Brandstatter

    IPC分类号： B29C45/52 ,  B29C45/60 ,  C23C26/02

    CPC分类号： B29C45/52 ,  B29C45/60 ,  B29C47/0845 ,  B29C47/0849 ,  C23C26/02 ,  B29C2045/526 ,  B29C47/0009

    摘要： A backflow blocking arrangement is for an injection unit of an injection molding machine having a plasticising screw with a front end for carrying the backflow blocking arrangement. The arrangement has a screw tip, a blocking bush and a blocking sleeve each with a base body material. The screw tip has friction surfaces and the blocking bush and the blocking sleeve each have sealing and friction surfaces. At least one of the friction and sealing surfaces is formed by a protective layer made of a fusion metallurgical compound of the base body material plus an additive. The additive is any one or more of a metal, a carbide, a carbonitride, a boride, a carboboride, a silicide, a sulfide or an oxide. The screw tip includes a mixed layer between its base body material and its outer layer, that includes the additive. The mixed layer is thinner than the outer layer and both the outer layer and the mixed layer include base body material in specific proportions with the additive. The outer layer and mixed layer are made from metallic mixed crystals and chemical compounds which contain material of the base body and the additive.

    摘要翻译： PCT No.PCT / AT96 / 00184 Sec。 371日期：1998年2月25日 102（e）1998年2月25日PCT PCT 1996年10月4日PCT公布。 公开号WO97 / 12743 日期1997年4月10日一种逆流阻塞装置用于注射成型机的注射单元，其具有用于承载回流阻塞装置的前端的塑化螺钉。 该装置具有螺旋尖端，阻塞套管和每个均具有基体材料的阻塞套筒。 螺杆尖端具有摩擦表面，阻塞套管和阻塞套管均具有密封和摩擦表面。 摩擦和密封表面中的至少一个由基体材料的熔融冶金化合物加上添加剂形成的保护层形成。 添加剂是金属，碳化物，碳氮化物，硼化物，碳化硼，硅化物，硫化物或氧化物中的任何一种或多种。 螺旋尖端包括其基体材料和其外层之间的混合层，其包括添加剂。 混合层比外层薄，外层和混合层都包括与添加剂特定比例的基体材料。 外层和混合层由含有基体材料和添加剂的金属混晶和化合物制成。