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TUBE EXPANSION METHOD FOR HEAT-TRANSFER TUBE MADE OF ALUMINUM OR ALUMINUM ALLOY
TUBE EXPANSION METHOD FOR HEAT-TRANSFER TUBE MADE OF ALUMINUM OR ALUMINUM ALLOY
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机译：铝或铝合金传热管的管膨胀方法
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摘要
PROBLEM TO BE SOLVED: To provide a tube expansion method for a heat-transfer tube.;SOLUTION: This invention relates to the tube expansion method for a heat-transfer tube, for forming a heat-transfer tube by forcibly inserting a tube expansion plug into the inside of a raw heat-transfer tube made of aluminum or aluminum alloy thereby expanding the outer diameter of the raw heat-transfer tube, the tube expansion plug including a head part having an outer diameter larger than the inner diameter of the raw heat-transfer tube. A tube expansion plug which is composed of a shank and the head part formed at this shank tip, and in which the shank and the head part are formed from a hard metal with a hardness of HRA85 -95 and diamond-like carbon film with a 0.5 -3.0 μm thickness is formed on the outer peripheral surface of the head part, is used as the tube expansion plug. A lubrication oil is used which has a flash point of 100°C or less and a kinetic viscosity of 1.0 mm 2/S(at 40°C) or more is used as the lubrication oil that lubricates between the raw heat-transfer tube and the tube expansion plug.;COPYRIGHT: (C)2015,JPO&INPIT
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机译：解决的问题：提供一种用于传热管的扩管方法。解决方案：本发明涉及一种用于传热管的扩管方法，用于通过强行插入扩管塞来形成传热管。在由铝或铝合金制成的生热传递管的内部，从而使生热传递管的外径膨胀，该管膨胀塞包括头部，该头部的外径大于生热的内径。 -传输管。一种管膨胀塞，该管膨胀塞由柄和在该柄尖上形成的头部组成，其中，柄和头部由硬度为HRA85 -95的硬质金属和类金刚石碳膜制成。头部的外周表面上形成有0.5 -3.0μm的厚度，用作扩管塞。使用在闪点为100°C以下且在运动粘度为1.0 mm 2 / S（在40°C时）以上的润滑油。原始传热管和膨胀管塞。;版权所有：（C）2015，JPO＆INPIT
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