31results about How to "Avoid cracks or even breakage" patented technology

The invention discloses a display module and a manufacturing method thereof.The display module comprises a bending area, the display module comprises a display panel and a back plate arranged on one side of the display panel, the back plate comprises a base material, and the base material comprises a first part and a second part; and the second part is close to the bending area of the display module relative to the first part, and the stiffness of the second part is larger than that of the first part. According to the display panel, the backboard is designed, the stiffness of the end, close to the bending area, of the backboard is effectively enhanced, and therefore the collapse problem caused by insufficient stiffness of the backboard is effectively solved, and the display panel is prevented from generating cracks and even being broken.

The invention relates to a composite gas compressor fan blade with an integrated metal coating. The composite gas compressor fan blade is characterized by comprising a composite base layer and a metal coating, wherein the composite base layer and the metal coating are integrally formed by mould pressing; the metal coating coats the composite base layer, and the coated flange part is adhered by adopting an adhesive and set by mould pressing. The blade has very high specific strength and excellent impact resistance and erosion resistance, and can effectively avoid cracking and even breakage caused by de-mixing and surge; and the blade forming method integrates preparation of an intermediate composite material and formation of the whole blade, so that the manufacturing cost and time are greatly reduced, and the method has the advantages of high forming precision, high automation degree, long service life of the mold and the like.

The invention discloses a rotary cutting mechanism with efficient and continuous rotary cutting function. In the rotary cutting process, a first lifting driving device drives a first lifting frame toascend and descend along a first guiding frame until the center of a first positioning and cutting knife and the center of the round wood are approximately located at the same height, a user operatesa first operation handle to push a first sleeve main body to move towards the round wood along threads, the first sleeve main body applies the inward pressure on a first positioning arm through a first abutting sleeve, the first positioning arm performs clamping through a first abutting gripper, finally, all the abutting grippers of the three positioning arms can carry out omni-directional clamping on the round wood, a first advancing and retreating motor drives a first advancing and retreating worm wheel to rotate through a first advancing and retracting worm, the first advancing and retreating worm wheel drives a first shaft main body to slide towards the round wood through a first advancing and retreating screw, a first blade is in abutting contact with the round wood, and performs rotary cutting on the round wood to form a groove corresponding to a first conical head, a groove part, formed by rotary cutting, of a first end cover performs automatic abutting contact, so that the effect of automatic centering is achieved.

The invention provides an insertion and connection terminal box and a high-precision manufacturing method of the insertion and connection terminal box to solve the problem that according to an existing terminal box production process, the coplanarity precision requirement is difficult to meet and the widths of protruding ribs are difficult to control. The insertion and connection terminal box comprises a box body which is of a vertically overlapped structure, wherein one lateral side of the box body is a bent edge, the other lateral side of the box body is an overlapping edge, the box body is provided with two protruding rib structures which are horizontally symmetrical, the left side of the box body and the right side of the box body are provided with a plurality of coplanarity measurement points, and the coplanarity of the box body is controlled within 0.035. The high-precision manufacturing method of the insertion and connection terminal box includes the steps of firstly, punching positioning holes; secondly, shearing a knife edge on one side of each protruding rib, and cutting off, supplementing and correcting the knife edge; thirdly, conducting the band tearing and folding process; fourthly, conducting the 45-degree pre-folding process; fifthly, conducting the 90-degree pre-folding process; sixthly, conducting the 135-degree pre-folding process; seventhly, conducting the flattening forming process; eighthly, conducting the adjusting process, wherein the fourth step, the fifth step and the sixth step are executed step by step. According to the insertion and connection terminal box and the high-precision manufacturing method, by improving a punching die and adding the supplementing, correcting and cutting-off process and the multi-stage pre-folding process, product accuracy and product quality are improved.

The invention provides a laser sintering device and a sintering method. The laser sintering equipment includes: a first laser head, used to output a laser with a first power; a second laser head, used to output a laser with a second power; a driving device, used to drive the first laser head and the second laser head to move , so that the first laser head and the second laser head respectively heat the same area on the material to be sintered. The present invention utilizes two laser heads to heat the material to be sintered arranged on the device to be sintered, so that the two laser heads respectively heat a certain region of the material to be sintered to be heated respectively, so that the material to be sintered before laser sintering Preheating, or annealing the material to be sintered after laser sintering, so as to reduce the temperature difference before laser sintering compared with laser sintering or reduce the temperature drop rate after laser sintering, so as to reduce the stress of the substrate of the material to be sintered , to avoid cracks or even breakage caused by shrinkage stress.

The invention discloses a pressing plate for a scraper conveyor. The pressing plate comprises an arbor, and a wear resisting layer wrapped on the outer surface of the arbor for forming a pressing plate body; a bonding layer is arranged between the arbor and the wear resisting layer; positioning through holes are spaced in the arbor; a transverse gap is formed in the wear resisting layer above the arbor; and the wear resisting layer parts on two sides of the transverse gap are upwards projected to form a limiting table. The arbor serves as a support skeleton of the pressing plate, so that the strength and the toughness of the pressing plate satisfy the working demands; the wear resisting layer serves as a main body of the pressing plate, so that the pressing plate has needed strength for normal work, meanwhile, the wear resistance is greatly improved, the weight is obviously lowered compared with metal, the weight of the pressing plate is reduced, the total weight of a scraper chain is reduced, the idle loss of the scrape conveyor is reduced, the energy saving target is realized, meanwhile, the phenomenon of crack or even rupture caused by residual stress of heat treatment is prevented, and the overall life is largely prolonged.