Verfahren zur Herstellung von Polyamiden in Extrudern
    31.
    发明授权
    Verfahren zur Herstellung von Polyamiden in Extrudern 有权
    一种用于在挤压机的制备的聚酰胺的过程

    公开(公告)号:EP2160431B1

    公开(公告)日:2011-07-13

    申请号:EP08760827.9

    申请日:2008-06-11

    申请人: BASF SE

    IPC分类号: C08G69/06 C08G69/30

    摘要: The invention relates to a method for the production of a polyamide based on dicarboxylic acids and diamines, wherein a solid mixture is heated in an extruder, the mixture containing a monomer mixture of 50 mol-% of a dicarboxylic acid mixture of 60 to 88 wt.-% of terephthalic acid and 12 to 40 wt.-% isophthalic acid, in which up to 20 wt.-% of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol-% of hexamethylene diamine, up to 20 wt.-% of which may be replaced by other C2-30 diamines, using a synchronized twin screw extruder for a dwell time of 10 seconds to 30 minutes to a temperature in the range from 150 to 400°C while removing water vapor, and possibly diamines, through degassing openings.

    MECHANISM FOR REGULATING KNEADABILITY, EXTRUDER, CONTINUOUS KNEADING MACHINE, METHOD FOR REGULATING KNEADABILITY AND KNEADING METHOD
    36.
    发明公开
    MECHANISM FOR REGULATING KNEADABILITY, EXTRUDER, CONTINUOUS KNEADING MACHINE, METHOD FOR REGULATING KNEADABILITY AND KNEADING METHOD 审中-公开
    调节可捏性的机构,挤出机,连续揉捏机,调节可揉性的方法和揉捏方法

    公开(公告)号:EP2204269A1

    公开(公告)日:2010-07-07

    申请号:EP08845445.9

    申请日:2008-10-31

    IPC分类号: B29B7/38 B29C47/64

    摘要: The degree of kneading of a material to be kneaded is to be capable of being adjusted with a high accuracy.
    A kneading degree adjusting mechanism is installed in a processing apparatus having a barrel and a kneading screw inserted into the barrel rotatably, the kneading screw having a kneading section and being adapted to rotate within the barrel to knead a material continuously while feeding the material from an upstream side toward a downstream side, the kneading degree adjusting mechanism including a push-back section for pushing back the material to the upstream side and thereby making the material stay around the kneading section, the push-back section being disposed downstream of the kneading section in the kneading screw, a kneading degree adjusting member having an opposed surface opposed to an outer periphery surface of the push-back section, and a drive section for actuating the kneading degree adjusting member so that the opposed surface moves toward and away from the push-back section.

    摘要翻译: 能够高精度地调整被混炼物的混炼程度。 捏合度调节机构安装在具有筒体和可旋转地插入筒体中的捏合螺杆的加工装置中,捏合螺杆具有捏合部分并且适于在筒体内旋转以连续地捏合材料,同时将材料从 上游侧朝向下游侧,所述混匀度调节机构包括用于将材料推回到上游侧并由此使材料停留在混炼部分周围的推回部分,所述推回部分设置在混炼部分的下游 在该混合搅拌螺杆中设置具有与推回部的外周面相对的相对面的混匀度调整部件以及驱动混匀度调整部件的驱动部,以使相对面接近和背离推压 - 返回部分。

    VERFAHREN ZUR HERSTELLUNG VON POLYAMIDEN IN EXTRUDERN
    37.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYAMIDEN IN EXTRUDERN 有权
    一种用于在挤压机的制备的聚酰胺的过程

    公开(公告)号:EP2160431A1

    公开(公告)日:2010-03-10

    申请号:EP08760827.9

    申请日:2008-06-11

    申请人: BASF SE

    IPC分类号: C08G69/06 C08G69/30

    摘要: The invention relates to a method for the production of a polyamide based on dicarboxylic acids and diamines, wherein a solid mixture is heated in an extruder, the mixture containing a monomer mixture of 50 mol-% of a dicarboxylic acid mixture of 60 to 88 wt.-% of terephthalic acid and 12 to 40 wt.-% isophthalic acid, in which up to 20 wt.-% of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol-% of hexamethylene diamine, up to 20 wt.-% of which may be replaced by other C2-30 diamines, using a synchronized twin screw extruder for a dwell time of 10 seconds to 30 minutes to a temperature in the range from 150 to 400°C while removing water vapor, and possibly diamines, through degassing openings.

    Heizkörper für Durchflussmedien und Verfahren zu dessen Herstellung
    38.
    发明公开
    Heizkörper für Durchflussmedien und Verfahren zu dessen Herstellung 有权
    HeizkörperfürDurchflussmedien und Verfahren zu dessen Herstellung

    公开(公告)号:EP2127786A1

    公开(公告)日:2009-12-02

    申请号:EP09405076.2

    申请日:2009-05-04

    申请人: Kennametal HTM AG

    摘要: Heizkörper (20) für Durchflussmedien, insbesondere für extrudierbare Werkstoffe, der durch heissisostatisches Pressen gefertigt werden kann, mit einer Kanalwandung (30). Weiterhin betrifft die Erfindung die Verwendung eines derartigen Heizkörpers (20)und einen Extruder sowie ein Verfahren zur pulvermetallurgischen Herstellung eines derartigen Heizkörpers.
    Um eine schnellere, einfachere und besser kontrollierbare Aufheizung und Beheizung des Heizkörpers (20) zu ermöglichen, wird vorgeschlagen, dass in die Kanalwandung (30) eine elektrische Heizleitung (1) mit einem Heizdraht (5) und einem Isolationsmantel (6) für diesen implementiert ist, wobei der Isolationsmantel (6) aus einem wärme- und druckstabilen Material besteht, welches gegenüber den Herstellungsbedingungen resistent ist.

    摘要翻译: 加热器单元(20)形成热等静压挤压机的一部分,并具有在绝缘护套内具有嵌入式加热器(1)线(5)的导管壁(30)。 护套由在生产条件下发现的高温和高压下保持稳定的材料制成。 绝缘套管是由例如玻璃管制成的螺旋管。 烧结氧化镁。 套筒的两端是细长的并且突出超过管道端部。 加热线的每个端部都具有接触元件。 进一步要求保护的是从金属粉末制造热等静压挤压加热器的方法。

    SCREW AND INJECTION APPARATUS
    40.
    发明公开
    SCREW AND INJECTION APPARATUS 有权
    螺杆和注射装置

    公开(公告)号:EP2110223A1

    公开(公告)日:2009-10-21

    申请号:EP07745098.9

    申请日:2007-06-12

    IPC分类号: B29C45/60 B29C47/60

    摘要: An object is to reduce the axial dimension of an injection apparatus, melt a molding material uniformly, and improve the quality of molded products. A screw (20) comprises a plasticizing portion which comprises a body portion (45a) and a flight (53) projectingly formed on an outer circumferential surface of the body portion (45a). A groove-depth setting region is defined over a predetermined section of the plasticizing portion, and in the groove-depth setting region, the ratio γ1 of a groove depth τ1 to a diameter δ1 of pellets of a molding material falls within the range of 1 ≤ γ1 ≤ 1.5 where the groove depth τ1 is a depth of a groove (67) formed along the flight (53). In the groove (67), pellets are arranged laterally and caused to advance while rolling along the groove (67). Since the pellets do not aggregate, no solid bed is formed.

    摘要翻译: 目的是减小注射装置的轴向尺寸,均匀地熔化模塑材料,并且提高模塑制品的质量。 螺钉(20)包括塑化部分,该塑化部分包括主体部分(45a)和突出形成在主体部分(45a)的外圆周表面上的螺纹(53)。 在塑化部的规定区域上形成有槽深设定区域,在槽深设定区域中,槽深度τ1相对于成型材料的粒料的直径δ1的比率γ1落在1的范围内 ≤γ1≤1.5,其中凹槽深度τ1是沿着螺纹(53)形成的凹槽(67)的深度。 在凹槽(67)中,颗粒横向排列并在沿着凹槽(67)滚动的同时前进。 由于颗粒不会聚集,因此不会形成固体床。