Extrusion molding method and apparatus for a thin tube
    1.
    发明申请
    Extrusion molding method and apparatus for a thin tube 失效
    挤出成型方法和装置用于细管

    公开(公告)号:US20020084542A1

    公开(公告)日:2002-07-04

    申请号:US10034257

    申请日:2002-01-03

    发明人: Yasuyuki Suzuki

    IPC分类号: B29C047/20 B29C047/92

    摘要: A tube with a thin thickness or a thin tube made of a synthetic resin material having high heat-resistance and high strength (for example, PEI material, PEEK material or the like) is produced by means of extrusion molding. An extrusion molding method forms a continuous product (5) for a thin tube by plasticizing and kneading a raw material (1) composed of a synthetic resin material having high heat-resistance and high strength by means of an extrusion molding machine (2), extruding the plasticized and kneaded raw material from a molding die (3) to form a tubular body (51) having a circular cross section, further passing the tubular body (51) on a sizing die (4) to give a final inner diameter to the tubular body (51), cooling and hardening the tubular body (51). The molding die (3) and sizing die (4) are coupled to each other by a connecting pipe (6). The sizing die (4) is made of a carbon material. A first air (81) is supplied to an interior of the sizing die (4) through the connecting pipe (6). A second air (92) is supplied to an interior of the molding die (3) so that an air lubrication layer is formed between an inner surface (52) of the continuous product (5) and an outer surface (41) of the sizing die (4). The first air (81) is exhausted as a third air (84) through the connecting pipe (6) out of the extrusion molding machine (2) after the first air (81) cools the sizing die (4). The second air (92) passes through a space defined between the inner surface (52) of the continuous product (5) and the outer surface (41) of the sizing die (4) and leaves the continuous product (5).

    摘要翻译: 通过挤出成型制造具有薄的厚度的管或由具有高耐热性和高强度的合成树脂材料制成的薄管(例如,PEI材料,PEEK材料等)。 通过挤出成型机(2)对由具有高耐热性和高强度的合成树脂材料构成的原料(1)进行塑化和捏合,形成用于细管的连续产品(5) 从成型模具(3)挤出增塑混炼的原料,形成具有圆形横截面的管状体(51),并将管状体(51)进一步通过定型模具(4),使最终内径达到 管状体(51),冷却并硬化管状体(51)。 成型模具(3)和定型模具(4)通过连接管(6)彼此连接。 定型模具(4)由碳材料制成。 第一空气(81)通过连接管(6)供给到定径模(4)的内部。 将第二空气(92)供应到成型模具(3)的内部,使得在连续产品(5)的内表面(52)和上浆机的外表面(41)之间形成空气润滑层 死(4)。 第一空气(81)在第一空气(81)冷却定型模(4)之后,通过连接管(6)从挤压成型机(2)中排出为第三空气(84)。 第二空气(92)穿过限定在连续产品(5)的内表面(52)和定型模具(4)的外表面(41)之间的空间并离开连续产品(5)。