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一、操作方法与注意事项: 1.备用直径5cm,长7cm左右的中空钢臂10～20个,将铸造粉按100g内加液状石蜡5～10g的比例配制2000g装入盆中备用,一般铁镫,中号奶头锤各1个,乳钵棒1根,熔锡铁瓢1把,纯锡(灰锡)2kg。 2.石膏代型模同固定义齿常规操作,将备用的中空钢管内灌满铸造粉,将石膏代型直插其中间,周围稍加力压紧,轻播石膏代型后拿钢管朝下轻轻摇动,石膏代型自然脱出,共制作3个,再将熔化的锡液浇在模筒内翻制锯代型,阴模即成。 3.磨平阴模周边部不光滑的地方,保持牙体牙颌
First, the operating methods and precautions: 1. Spare diameter of 5cm, about 7cm long hollow steel arm 10 to 20, the casting powder 100g plus liquid paraffin 5 ~ 10g ratio of preparation 2000g into the pot standby, the general iron镫, medium nipple hammer each one, a mortar bar, iron tin scoop 1, pure tin (gray tin) 2kg. 2. Gypsum cast with the regular denture routine operation, the spare hollow steel tube filled with foundry powder, the gypsum cast in the middle of the middle, a little pressure around the compaction, shot cast gypsum steel pipe downwards after the light Gently shake, gypsum spontaneous prolapse, a total of three production, and then melt the molten tin poured in the mold tube turned sawing substituting, die Yin Serve. 3. Smooth the non-smooth around the negative parts of the mold to keep the teeth jaw