49results about How to "Avoid micro deformation" patented technology

The invention discloses a waterproof ceramic tile adhesive material which is prepared from the following components in parts by weight: 40-60 parts of cement, 40-50 parts of grading aggregate, 1-10 parts of mineral filling permeable material, 0.5-3 parts of water retaining agent, 0.1-1 part of antifoaming agent, 0.1-0.5 part of anti-sagging agent, 0.1-1 part of water repellent, 0.5-2 parts of superplasticizer, 2-5 parts of re-dispersible latex powder, 0.1-1 part of anti-cracking fiber, 0.1-2 parts of anti-saltpetering agent, 0.1-0.5 part of thixotropic lubricant, 3-5 parts of expanding agent, 0.1-0.3 part of early strength agent and 0.01-0.05 part of retarder. The waterproof ceramic tile adhesive material disclosed by the invention can be used for pasting ceramic tiles, realizes a waterproof anti-permeation function with low shrinkage and high compaction, has the characteristics of high bonding strength and strong environmental adaptability, and provides a guarantee to the building and personal safety.

The invention discloses a NCK high-speed servo feeder and a control method thereof. The feeder comprises a base, main engine boards are symmetrically arranged on the base, a lower roller and an upperroller are arranged between the main engine boards through a bearing, the lower roller and the upper roller are arranged in parallel and are matched to clamp a material, a servo motor for driving thelower roller and the upper roller to work is arranged on the base, the control method comprises the steps of switching the work mode of the servo motor between the displacement mode and the moment mode, clamping and loosening of the material are controlled, and the stamping precision is ensured; and a loosening assembly does not need to be arranged, control through one servo motor is achieved, theequipment cost and the control cost of the feeder are greatly reduced, and meanwhile, due to the fact that the loosening assembly easily damaged is abandoned, the service life of the feeder is prolonged.

The invention relates to a micro-deformation control process for a split axle box body. The micro-deformation control process specifically comprises the following steps: carrying out blank casting onan upper box body and a lower box body separately; carrying out rough machining on single elements; carrying out heat treatment on the single elements; carrying out finish machining on the single elements; carrying out box combination, machining a bearing hole, a node hole and the two end surfaces of the axle box body and a node, machining a labyrinth groove in the inner surface of the bearing hole as well as a shock absorber seat, a cowcatcher installation seat, a top surface, a bottom surface and a cylinder which surround the axle box body by taking the machined bearing hole, node hole and end surfaces as location reference; carrying out semi-finish milling and boring for the bearing hole; carrying out box splitting, and then placing the box bodies under a room-temperature condition andcarrying out aging treatment separately; carrying out fine trimming on a box splitting surface; carrying out box combination and carrying out semi-finish milling and boring for the bearing hole; carrying out box splitting, and then carrying out polishing; and carrying out box combination again, detecting the axle box body subjected to the box combination, and then carrying out sand blasting and painting. According to the micro-deformation control process disclosed by the invention, the micro-deformation of the axle box body is prevented and controlled simultaneously in many aspects through reasonable optimization for a process flow and optimization for process parameters, so that the product pass percent is increased, the production period is ensured, and the production cost is lowered.