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公开(公告)号：US3753789A
公开(公告)日：1973-08-21
申请号：US3753789D
申请日：1972-02-23
申请人： AMSTED IND INC
摘要： In the cooling of a steel railway car wheel having relatively thick hub and tread portions and a relatively thin plate portion, it is important that undue stresses are not set up in the plate portion and, simultaneously, that the tread is hardened for good wear qualities while the hub is kept soft for easy machinability. These objectives are achieved by providing a conveyor having suspended thereover, at spaced intervals, non-metallic insulating disks having a diameter approximately equal to or slightly larger than the wheel hub diameter, moving the wheels in intermittent steps along the conveyor so that the wheels stop for a predetermined period of time directly under successive disks until the hubs have cooled from a temperature of about 1,700* F. to below the critical transformation temperature which is about 1,200* F., the other portions of the wheels having cooled at a faster rate.
摘要翻译： 在具有相对较厚的轮毂和胎面部分以及较薄的板部分的钢铁车轮的冷却中，重要的是在板部分中不会形成过大的应力，同时，胎面硬化以获得良好的磨损性能 而轮毂保持柔软，便于切削加工。 这些目标通过提供一种以间隔的间隔悬挂在其上的输送机来实现，该输送机具有直径大致等于或略大于轮毂直径的非金属绝缘盘，沿着输送机间歇地移动车轮，使得车轮停止 直到连续的盘直到轮毂已经从约1700°F的温度冷却到低于关键转变温度约1200°F的预定时间段，轮的其它部分以更快的速度冷却 。
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公开(公告)号：US3854899A
公开(公告)日：1974-12-17
申请号：US36735573
申请日：1973-06-04
申请人： AMSTED IND INC
摘要： Graphite molds are provided with a refractory coating which must be removed and renewed between each pour. An apparatus and method are provided for sand blasting the coated mold surfaces under controlled conditions to remove the refractory coating without eroding the graphite mold.
摘要翻译： 石墨模具提供耐火涂层，必须在每次浇注之间移除和更新。 提供了一种设备和方法，用于在受控条件下对涂覆的模具表面进行喷砂以除去耐火涂层而不侵蚀石墨模具。
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