42results about How to "Regular and beautiful appearance" patented technology

The invention relates to a glass fiber reinforced plastic cable channel cover plate and a production method thereof. The cover plate is a rectangular hollow belly structure, longitudinal stiffening ribs are arranged in the hollow belly of the cover plate and the upper surface of the cover plate is provided with strip-shaped antiskid grains; the invention comprises the following raw materials: unsaturated polyester resin, curing agent, packing, polyvinyl alcohol solution, pigment, fiberglass roving and fiberglass felt; the invention comprises the following steps: (1) arranging a tooling equipment on an extrusion molding machine; (2) mixing and pouring the raw materials in a resin tank; and (3) inducing the fiberglass roving and the fiberglass felt through immersion, a performing device, a forming device, curing and cutting. The cover plate has high strength, smooth surface, neat and beautiful appearance, corrosion resistance of alkali, acid, petrol and the like, aging resistance, long service life without pulverization, discoloration, crack, deformation and the like. The invention ensures the safe operation of cables and prolongs the service life of the cables.

The invention discloses an automatic wire welding process. A first station feed inlet of a feed processing device guides a to-be-welded wire which is subjected to peeling and cutting at a cutting station into a positioning jig of a transmission device. A second station feed inlet guide a tin wire into a tinning mechanism. A third station feed inlet guide a to-be-connected terminal into a welding structure. The tinning mechanism flattens and cuts the tin wire to form a tin sheet, and the tin sheet is riveted by means of casting and wrapped at the connection of the wire and the terminal. The welding structure guides the positioning jig for fixing the to-be-welded wire to a welding station and performs constant-temperature welding of the wire and the terminal after accurate positioning of the wire and the to-be-connected terminal. By the automatic wire welding process, automatic wire welding is achieved, tin wire welding totally covers wire heads, crack and dropping are less easily, and product service life is prolonged. The invention further provides an automatic wire welding machine for realizing the process.

The invention discloses an electroslag ignition agent and a preparation method thereof. The electroslag ignition agent is used for igniting and remelting slag material in an electroslag remelting technology to establish electroslag. The ignition agent comprises the following raw material components in percentage by weight: 25-35% of fluorite powder, 2-12% of silica powder, 30-40% of graphite electrode powder, 1-11% of quicklime powder and 18-28% of water glass. The preparation method comprises the following process steps: preparing mixed dry powder: uniformly mixing the raw materials according to the content in percentage by weight of each raw material and the carrying capacity of a mold to obtain the mixed dry powder; mixing with sludge, loading into the mold, adding the water glass into the mixed dry powder, stirring till no dry powder exists, loading a mixture which is uniformly stirred into the mold, tamping and compacting; blowing gas, demolding, blowing CO2 into the mold, and demolding after stopping gas blowing to obtain an ignition agent block; and drying at low temperature. The ignition agent disclosed by the invention has a good arc starting effect in the using process and can avoid a titanium-increasing effect, and high-temperature smelting is not required in the manufacturing process of the ignition agent.

The invention relates to an integral die forging method for a large-scale GH4169 alloy turbine shaft (the length of the shaft is 1520 mm). In general, two forging methods are adopted for large-scale shaft type forge pieces, and include the axial drawing-out free forging method and the comprehensive forging method combining rod portion local free drawing-out with flange local (forming) die forging. A shaft forging piece manufactured through the axial drawing-out free forging method is generally characterized by being uneven in deformation, large, poor in coaxiality and cylindricity, serious in warping, and low in production efficiency; compared with the shaft forging piece manufactured through the axial drawing-out free forging method, a shaft forging piece manufactured through the comprehensive forging method combining rod portion local free drawing-out with flange local (forming) die forging has similar characteristics, flange part forming is slightly superior, however, a transitional structure is inevitably generated in partial forging, and thus the whole performance of a forging piece of the turbine shaft is greatly lowered. According to the integral die forging method for the large-scale GH4169 turbine shaft, the technology thinking of partial crude manufacturing and whole die forging forming is adopted, the structure homogeneity, integrality and product stability of the shaft forging piece of the GH4169 alloy turbine shaft can be effectively improved, and production efficiency is greatly improved.

The invention provides a turnout fastener mechanical anti-loosening structure which comprises an anti-rotating support and anti-loosening pieces, the anti-rotating support is installed on the oppositeside rail web of a turnout assembly part, the two sides of the anti-rotating support are fastened to the rail web of a steel rail part and the turnout assembly part through bolts and nuts respectively, and inserting grooves are symmetrically formed in the side, back on to the rail web, of the anti-rotating support; each anti-loosening piece comprises a clamping part attached to the outer side face of the nut and provided with an opening in the bottom and an inserting part matched with the corresponding inserting groove, and each inserting part is fixed to the corresponding clamping part. In afastened state, the clamping parts are arranged above the nuts in a sleeving mode from top to bottom and attached to the nuts, meanwhile, the inserting parts are inserted into the inserting grooves,and the bottoms of the clamping parts are fixed through cotter pins. The anti-loosening structure is firm in anti-loosening effect, the anti-rotating support does not need to abut against the upper inclined face and the lower inclined face of the rail web space, the space needed for installation of the anti-loosening pieces is small, and therefore the anti-loosening structure can be universally suitable for different rail types and bolt hole center heights and is high in universality.

The invention relates to an automatic counting winding and cutting machine which comprises an electronic control system, a braid winding mechanism, a receiving disc lifting table, a braid guide rollerset, a fusing mechanism, a limiting assembly and a traction mechanism, the braid guide roller set, the fusing mechanism, the limiting assembly and the traction mechanism are sequentially arranged inthe braid running direction, the center of a braid winding station of the braid winding mechanism is located on any one of the left and right sides of a fusing station, the limiting assembly is located under the fusing station and is provided with a braid walking space, the receiving disc lifting table is correspondingly arranged under the braid winding station, a meter counting wheel and a photoelectric detector are electrically connected with the signal input end of the electronic control system. By means of the automatic counting winding and cutting machine, the inclined angle between a braid and the vertical line can be smaller during full winding, fusion is facilitated, the braid descending angle is limited, and accidental fusion is avoided; and a pneumatic rolling shaft is tightly attached to a traction roller to enable the braid to keep appropriate tension force without corrugation or displacement, and the smooth implementation of braid winding and orderly and attractive braid discs are guaranteed. According to the automatic counting winding and cutting machine, the braid can be automatically cut off and rolled into a disc cake shape according to the set length, the accuracyis high, and the load weight is large.

The invention discloses a final-forming forging mold which comprises a punch (2) and a matrix (4), wherein a punch sleeve (3) is arranged outside the punch (2); a prestressed ring (5) is arranged outside the matrix (4); the punch (2) extends into an inner chamber of the matrix; a knockout (7) is arranged in the inner chamber of the matrix; the lower end of the punch, the upper end of the knockout, and the inner chamber of the matrix form flow space for blank; and preformed blank is placed in a final-forming mold to form an outer ring lug and a central hole of a final-forming blank of a worm sector. A product forged by the forging mold has the advantages of high material density, orderly and attractive appearance without flash burrs and small machining allowance, not only are materials saved, but also machining is facilitated.

The invention provides a missile wing single-axis rotating unfolding system considering aileron drive and an unfolding method thereof. The missile wing single-axis rotating unfolding system considering aileron drive comprises a missile body, a missile wing, a folding driving mechanism and a locking mechanism; the folding driving mechanism comprises: after a main shaft passes through a main shaft hole, the top surface of the main shaft is fixed to the bottom surface of the missile body, thus the missile body and the missile wing are assembled together, and the missile wing can rotate around themain shaft; and the center position of a scroll spring sleeves the main shaft, so that the inner end of the scroll spring is clamped in a main shaft scroll spring clamping groove, and the outer end of the scroll spring is clamped in a missile wing scroll spring clamping groove. The missile wing single-axis rotating unfolding system has the advantages that rapid unfolding, accurate positioning andreliable locking of the folded missile wing can be realized, and the missile wing single-axis rotating unfolding system has the characteristics of reasonable design, easy implementation, simple and rapid unfolding mode, regular and beautiful appearance, convenience in carrying and the like.

The invention discloses a novel profile combined sponge suction cup. The novel profile combined sponge suction cup adopts a whole sponge and an aluminum profile main body to replace sponge arranged inblocks and a body formed by machining a whole aluminum profile, thus the machining difficulty is greatly lowered, an upper end cover of the aluminum profile main body is arranged integrally, and theappearance is attractive and regular; cooperation with an S-shaped air circuit formed by partition plates in the aluminum profile main body, an original structure that all air pipes are externally connected for separated air supplying is changed, thus when the sponge suction cup works, all parts of an adsorbing sponge layer deform more evenly, the overall production cost is low, the structure is simple, using is convenient, the adsorbing effect is good, working stability is high, the service life is long, and the novel profile combined sponge suction cup is suitable for a vacuum suction cup.

The invention relates to tool types, in particular to a structured grass supporting cushion for supporting goods to be stored. The supporting cushion is provided with a rectangular inner cushion body and is characterized in that the inner cushion body comprises three foam plastic bearing plates which are arranged at intervals, and the position between every two foam plastic supporting plates is filled with cotton stalks; hemp ropes are bound on the periphery of the inner cushion body, and weed layers and neat grass layers are laid on the periphery of the inner cushion body from inside to outside; and a plurality of fastening hoops are arranged on the peripheries of the neat grass layers. The defects that a traditional grass supporting cushion is unstructured in appearance, the size is quite unstructured, weed is prone to being scattered to pollute environment, and deformation is likely to happen are overcome, and the structured grass supporting cushion is widely used for carrying and storing of the goods.

The invention discloses a screwless C type wire clamp which comprises a compact block and a C-shaped element. The compact block is composed of two compact bodies. One end of each compact body is provided with a crescent-shaped projection cooperating with the C-shaped element. The side surface of the other end of each compact body is connected with a pressing-in block through a spring piece. The central parts of the upper end face splicing parts of the two compact bodies are provided with one conical screw hole. The two sides of the conical screw hole are respectively provided with a protruding contraposition point and a recessed contraposition point which cooperate with each other. The manufacturing cost of the screwless C type wire clamp is not high. Compared with conventional C type wire clamps, the wire clamp with no screws brings greater convenience when insulating or waterproof processing is performed on the outer side of the wire clamp. The overall appearance of the wire clamp is regular and attractive. Meanwhile, the wire clamp can be used for arranging glue pouring type joints overhead and providing possibilities of better reducing phenomena of water entries into insulation wires on the premise that great electrical performance is maintained.