5results about How to "High dimensional control accuracy" patented technology

An isothermal near-net forming method of a TC4 titanium alloy aeroengine blisk comprises the following steps that (1) the surface of a TC4 titanium alloy bar is coated with a glass lubricant, and the TC4 titanium alloy bar is heated to T beta-(30-80) DEG C; 2) coating a glass lubricant on the pre-forging die and heating the pre-forging die to T beta-(30-80) DEG C; (3) the bar is loaded into a pre-forging die to be forged into an intermediate blank, at least one heating number of forging is carried out, the strain rate is smaller than or equal to 0.01 s <-1 >, and the deformation amount is 60-70%; after forging is completed, the intermediate blank is water-cooled to the room temperature; (4) the intermediate blank is heated to T beta-(30-80) DEG C; 5) coating a glass lubricant on a finish forging forming die and heating to T beta-(30-80) DEG C; the method comprises the following steps of (1) carrying out primary forging on an intermediate blank, (2) carrying out secondary forging on the intermediate blank, (3) carrying out secondary forging on the intermediate blank, (4) carrying out secondary forging on the intermediate blank, (5) carrying out secondary forging on the intermediate blank, (6) loading the intermediate blank into a final forging forming die, pressing the intermediate blank into a blisk forge piece, carrying out at least one-heating-number forging, carrying out water cooling on the blisk forge piece to room temperature, (7) carrying out solution treatment on the blisk forge piece and carrying out water cooling to room temperature, and (8) carrying out aging treatment on the blisk forge piece and carrying out air cooling to room temperature.

The utility model discloses a variable diameter sample cutting instrument for preparing a soil body sample for geotechnical tensile test, which comprises a bottom plate, the top surface of the bottom plate is respectively provided with a clamp guide rail and a cutting guide rail, the clamp guide rail is provided with a first moving seat matched with the clamp guide rail, the first moving seat is rotatably connected with a moving clamp, and the moving clamp is rotatably connected with the cutting guide rail. A fixing base is welded to the right side of the top surface of the bottom plate, a fixing clamp is rotationally connected to the fixing base, and a first belt wheel is installed on a rotating shaft of the fixing clamp. According to the variable-diameter sample cutting instrument for preparing the soil body sample for the geotechnical tensile test, an electric mode and a manual mode can be freely switched, the size control precision is high, the instrument can be controlled by adopting a sample preparation program, different cutting tools can be adopted to be matched with different cutting modes, soil bodies of different structures can be cut, and the working efficiency is improved. The device is suitable for different types of tensile tests, is convenient to operate, can adopt different cutting rates, and can cut soil bodies with different structures.

According to the wallboard / floor slab production process for the fabricated building, full-automatic production is achieved, the production time is greatly saved, the production efficiency is improved, and machining is conducted through reinforcing meshes; cleaning a mold table; assembling the mold; placing a reinforcing mesh; pouring concrete; trowelling the surface; pre-curing is conducted; disassembling the mold; performing secondary maintenance; checking and storing; a silica gel plate in the frame type pouring mold can be flexibly assembled according to the actual size of a floor slab, assembling is convenient, the size control precision is high, demolding is convenient after concrete is poured through the surface structure of the silica gel plate, the floor slab is not prone to being damaged, and the finished product qualification rate of the floor slab is increased; the silica gel mold mounting gripper and the silica gel mold dismounting gripper assist in mounting and dismounting the mold, full-process automatic operation is achieved, and due to the fact that position parameters are calibrated during mold mounting, the corresponding magnetic connecting plugs only need to be moved to target positions according to the corresponding position parameters, and then alignment can be achieved; the method can be widely applied to the field of prefabricated wallboards / floors.

The utility model aims to provide an anti-shake camera shooting driving device, which comprises a protective shell and a base which are buckled with each other to form an accommodating cavity, an accommodating cavity is formed in the base, an optical element protruding out of the protective shell, a carrier for bearing the optical element and a focusing driving assembly are arranged in the accommodating cavity, the anti-shake reed comprises a plane part and a bending part, and the bending part is provided with an elastic structure, so that the anti-shake reed can be elastically connected between the carrier and the base; wherein the elastic structure comprises a spring wire which is formed by bending and extending inwards from the end part of the bending part, and the wall surfaces of the bent and extended spring wire do not interfere with each other. The bent anti-shake reeds which are independently arranged at the four corners of the supporting carrier are adopted, bosses at the four corners of a base in the prior art are omitted, the deformation amount of the base is reduced, the size control precision is improved, meanwhile, the anti-shake reeds are vertically and elastically supported between the carrier and the base, the K value of the reeds in the Z direction is larger, and compared with an original reed bent structure, the performance yield is easier to control.

The utility model relates to steel formwork technical field, especially a prefabricated assembly type steel formwork of gate chamber energy dissipation cover plate. The prefabricated assembly type steel formwork includes bottom die, with the side die of bottom die through the guiding component connection and with bottom die and side die through the fixed component connection core mould respectively, the core mould is located inside side die, bottom die, side die and core mould form the pouring space for pouring gate chamber energy dissipation cover plate in common, the supporting leg of gate chamber energy dissipation cover plate that pours is upwards, both sides of core mould are provided with first dismantle piece. The above technical scheme can guarantee the apparent quality of energy dissipation cover plate, and can improve construction efficiency and size control accuracy.