《鉄道車辆》1968年第三期上刊登的“貨車检修的几点建設”一文,我們看过了。关于罐車修理中的几个問題,这里也提出我們一点粗浅看法,供参考。 一、G_(12)型罐車中心閥下閥的螺套頂部改为形很好,但把栽絲改为30°斜插銷不夠牢固,中心閥由于开关很容易自动脫出,可仍采取栽絲方法。为了防止栽絲頂部和刀槽碰伤,可将螺套頂部开圓孔,把栽絲窝入。为了提高中心閥开关作用,日常維修时采取自然过 We have read the article entitled “Construction of the Wagon Maintenance” published in the third issue of 1968. On tanker repair in a few questions, here also put forward a little superficial view, for reference. First, G_ (12) type tank car center valve under the valve sleeve to the top of the screw shape is good, but the planting wire to 30 ° oblique bolt is not strong enough, the center valve can easily take off automatically because of the switch can still take planting silk method. In order to prevent the top of the planting silk and knife groove bruise, the top of the screw sleeve can be opened a round hole, the planting silk nest into. In order to improve the role of the central valve switch, routine maintenance to take a natural too