39results about How to "Reduce cause" patented technology

The invention relates to a method for adjusting the matching degree of forming parameters of a coal ash autoclaved standard brick. The adjusted parameters comprise the following important parameters including dry raw material ratio, feeding door opening time, material distributing bed moving speed and rocking bar swinging times, wherein I, the dry raw materials comprises the following components in parts by mass: 46 to 50 parts of coal ash, 7 to 9 parts of quick lime, 3.6 to 4.4 parts of dust-removing lime, 20 to 24 parts of gravel and 16 to 20 parts of coarse slag, wherein the granularity of the gravel is less than or equal to 5 mm and 9.4 to 10 percent of water is added into the dry materials; II, the feeding door opening time is controlled to be 0.1 to 0.3 second; III, the rated value of the material distributing bed moving speed is 1.8 to 2.2 m / s and the normal set value is 70 to 80 percent of the rated value; IV, technical parameters of material distribution are controlled, i.e., a rocking bar swings for 5 to 6 times and a mould frame charging depth is 220 mm. By adopting the method for adjusting the matching degree of the forming parameters of the coal ash autoclaved standard brick, the blank formation qualified ratio of manufactured standard bricks is high.

The invention provides a processing method for a high-precision Ti capillary pipe fitting and a pipe grinding assembly used in the processing method. The precise Ti capillary pipe fitting is produced by the steps of adopting a laser diameter measuring instrument and an eddy current flaw detector for optimally selecting pipe blanks, adopting a specific process to draw Ti capillary pipes, adopting ultrasonic waves to clean the capillary pipes, blanking the bundled capillary pipes by adopting a specific fastening clamp, and preparing the pipe grinding assembly, and finely grinding the end faces of the capillary pipes on a grinding machine. The method has the technological characteristics of good product quality, high finished rate, higher production efficiency, less equipment investment and suitability for production in batch.

The invention relate to a center hole benchmark correcting method reducing cutting torque. The center hole benchmark correcting method includes the following steps that a center hole benchmark correcting process of a journal type typical blade part machining technology is selected; equipment for machining in the center hole benchmark correcting process is selected; the positioning benchmark of a clamp and the equipment is selected, and the positioning benchmark of the clamp and a part is selected; a center hole benchmark correcting tool for reducing cutting torque is designed; the coaxiality tolerance actual values of the benchmark of a center hole are detected before heat treatment and semifinishing in a journal type blade in the machining process, and an average value is calculated; the center hole benchmark correcting tool is used for machining and correcting the center hole of the part, and whether the coaxiality tolerance value of the journal of the part subjected to external grinding conforms to the tolerance or not is judged; machining parameters are set; and the differences of the coaxiality tolerance actual values of the benchmark of the center hole of the part are compared. According to the center hole benchmark correcting method reducing cutting torque, the qualification rate of the machining process with the center hole of the journal type blade as the benchmark is increased, waste products caused by profile deformation when the coaxiality of the center hole is not qualified are reduced, the machining efficiency is improved to be more than 200%, and the qualification rate is more than 90%.

The invention relates to a mobile phone protective case capable of enlarging the display area, and aims to provide a mobile phone protective case capable of enlarging the display area which is easy to carry, reliable in structure and excellent in display effect. The mobile phone protective case includes a clamping sleeve. A reversible display is arranged on the top of the clamping sleeve. A display bracket capable of making a liquid crystal display screen rotate relative to the display is arranged on the display. A lens support is arranged outside the liquid crystal display screen. A detachable liquid zoom lens is arranged on the lens support. The display area of a mobile phone can be enlarged quickly without the need for a user to replace the mobile phone, and the phone replacement cost is saved for users. The liquid crystal display screen can be adjusted according to the angle and distance between the liquid crystal display screen and an eye lens in order to make the eyes always in a best viewing position and to protect the eyes. The clamping sleeve is made of a novel aluminum alloy material and a novel resin material, and is thus of higher structural strength.