摘要:
A method for the production of an aqueous dispersion of a long-chain alkyl graft polymer, which method comprises mixing an aqueous solution of a polyamine with a long-chain alkyl isocyanate and stirring the resultant mixture thereby causing reaction of said component reactants, and an aqueous release agent formed therefrom.
摘要:
An adhesive composition comprising 10 to 80% by weight of a binder composed of an aminoalkyl ester group-containing acrylic copolymer shown ##STR1## wherein R denotes an alkylene possessing 2 to 3 carbon atoms, as a pendant group and an epoxy resin, and if desired a rust-proofing pigment and a silane coupling agent.
摘要:
An amphoteric polyelectrolite represented by the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H or alkyl, R.sup.5 is H, alkyl or w--OH substituted alkyl, HY is monobasic acid, and Z is amide.
摘要:
A pair of opposed spindleheads are rigidly mounted on a bed for holding a crankshaft to be machined between a pair of chucks on the ends of indexing spindles. One or more, preferably two, cutter assemblies are provided between the spindleheads for movement therebetween. Each cutter assembly includes a carriage slidable along a guideway on the bed and itself having slidably mounted thereon a slide which is reciprocable in a direction normal to the axis of the crankshaft. Mounted to the slide for rotation about an axis parallel to the axis of the crankshaft is a disklike tool holder carrying a annular, rotary cutting tool in an eccentric position thereon. The cutting tool has an annular row of internal cutting edges surrounding with clearance a desired part of the crankshaft to be machined. As the cutting tool is revolved at a constant speed, the desired crankshaft part is thereby machined with the concurrent bidirectional rotation of the tool holder relative to the slide and linear, bidirectional travel of the slide relative to the carriage. The machining operation is controlled numerically.
摘要:
A crankshaft milling machine comprising a bed, guide rails carried by the bed, a milling unit having a pair of arbor slidably mounted on the guide rails, the milling unit being adapted to move back and forth along the guide rails, a pair of headstocks mounted on the bed each having a spindle mounted therein, a pair of chucks each mounted on the respective spindles for clamping a workpiece to be milled, and a center stock mounted on the bed for supporting one end of the workpiece.