33results about How to "Shedding does not cause" patented technology

The invention discloses a large-diameter high-speed cutting and high-speed heavy load grinding resin wheel prepared from the following three components in percentage by weight: 60-72 percent of grinding materials, 18-25 percent of filling materials and 8-18 percent of resin, wherein the grinding materials in the wheel are film-coating calcined brown fused alumina, the filling materials comprise a heat conducting material and an active filling material, and the resin comprises a phenolic resin liquid and phenolic resin powder. The sand is produced by adopting the film-coating calcined brown fused alumina, which has good heat conduction property of metal plating, obviously strengthens the heat radiating effect of the wheel and prolongs the abrasive resistance and the service life of the wheel. In addition, the grinding materials have improved ball-milling flexibility after calcined, which enables the wheel to be durable and the property to be better. The wheel can be used for cutting hot-wire type steel with a diameter of over 100 mm or grinding the steel in a high-speed and heavy load way, and has long service life reaching 100-120min.

The invention discloses a heat exchanger comprising a first collecting pipe, a second collecting pipe and a plurality of sets of radiation flat pipes arranged between the first collecting pipe and the second collecting pipe. Ports in which the radiation flat pipes can be inserted are arranged at one sides of the collecting pipes. The radiation flat pipes are inserted into the collecting pipes through the ports. Fins used for heat radiation are arranged between adjacent two sets of radiation flat pipes. Positioning mechanisms for preventing the horizontal movement of the fins are arranged between the radiation flat pipes and the fins. After the use of the positioning mechanisms, the radiation flat pipes and the fins of the heat exchanger can be stably and reliably positioned, and the service life of the heat exchanger can be prolonged. The positioning mechanisms are more suitable for heat exchangers with fins wider than radiation flat pipes. The disconnection caused by the collision of the fins with other components during the assembly, as well as other problems, can be avoided, thereby improving the heat exchange efficiency of the heat exchanger.

The invention discloses a preparation method of a gypsum mine slag cement-based thick-type steel structure fireproof, anticorrosive, thermal-insulation integrated coating. According to the preparation method, gypsum mine slag cement is obtained via mixing of gypsum, blast furnace slag, and Portland cement clinker; an ingredient A is obtained via mixing of acrylic acid waterproof elastic emulsion, styrene-acrylic emulsion, vinyl chloride-vinylidene chloride copolymer emulsion, mica powder, titanium dioxide powder, iron red powder, ammoniacal liquor, hydroxyethyl cellulose ether, a dispersant, an antifoaming agent, an antiseptic, a film forming auxiliary agent, and water; a fireproof steel structure anticorrosive primer is composed of the ingredient A and the gypsum mine slag cement; a thick-type steel structure fireproof thermal-insulation coating is obtained via mixing of expanded vermiculite, expanded perlite, rubber powder, hydroxyethyl cellulose ether, and the gypsum mine slag cement; and a finished product is obtained via steel structure surface cleaning treatment, coating of the fireproof steel structure anticorrosive primer, polishing, and coating of the thick-type steel structure fireproof thermal-insulation coating. The comprehensive cost is low; the preparation method is friendly to the environment, can be widely used for fire protection, corrosion protection, thermal insulation, and energy reduction of different kinds of steel structures.

The invention belongs to the field of fireproof materials and provides a graphene-based fireproof plastic plate. The graphene-based fireproof plastic plate comprises a graphene-based fireproof layer and a plastic base material layer, and the graphene-based fireproof layer comprises intrinsic graphene. Flame retardation and heat insulation effects of the fireproof layer can be improved by intrinsicgraphene, the plastic base material layer can be effectively protected in fire accidents, and burning and toxic gas releasing time of the plastic base material layer is delayed to buy time for evacuation and rescue. Further, stretch resistance and flexibility of the fireproof layer can be improved by intrinsic graphene, and the fireproof layer deforms correspondingly in deformation of the plasticbase material layer so as to keep high adhesion to the plastic base material layer; strength of an expansion carbon layer is improved, and less proneness to shedding after heat deformation of the plastic base material layer is realized. Owing to excellent insulation and hydrophobic performances of intrinsic graphene, water resistance of the fireproof layer can be remarkably improved, and the service life of the fireproof plastic plate is prolonged. In addition, the graphene-based fireproof plastic plate is low in density.

The invention discloses flat pipe and fin structures of a parallel flow heat exchanger, which comprise a plurality of flat pipes inserted on header pipes on two ends of the heat exchanger, fins are arranged between adjacent flat pipes, and micro-channels on the flat pipes are communicated with the header pipes on the two ends of the heat exchanger; and longitudinal middle parts at two sides of each flat pipe protrude, and correspondingly each fin is of a structure in which the longitudinal middle parts at two sides are sunken, thus avoiding the fins moving transversely to result in falling-off. Preferably, the protruding parts of the longitudinal middle parts at the two sides of each flat pipe are subjected to smoothing transition, and correspondingly the sunken structure of the longitudinal middle parts at the two sides of each fin is also subjected to smoothing transition, thus facilitating processing and manufacturing of components. After assembly brazing is completed, the fins can remain stationary transversely, thus effectively avoiding the fin moving transversely to result in falling-off; and after long-term service, the fins do not drop even though welding spots between the fins and the flat pipes are corroded or cracked owing to vibration and the like, thus achieving relatively stable heat exchange efficiency of the heat exchanger, facilitating overall processing and manufacturing, and improving excellence rate of assembly processing of the heat exchanger.

The invention discloses a double-face welding method preventing a big chip from falling off, belonging to the electronic member welding technology field. The double-face welding method comprises steps of (1) performing surface pre-processing, (2) welding a driving surface, (3) reinforcing a BGA chip, (4) welding a luminescence face, (5) welding a metal shielding housing, and (6) adhering a heat radiation sheet. The double-face welding method disclosed by the invention realizes reliable welding of double faces through welding temperature difference and can effectively prevent the BGA chip from falling off through reinforcing the BGA chip. The invention is good in the effect, and cannot cause BGA chip to fall off even that the shielding housing, the heat radiation sheets are added on the outside of the BGA chip.

The invention relates to the technical field of preparation of evaporation-coating materials, in particular to a preparing method of a silica-glass-doped evaporation-coating material. The preparing method of the silica-glass-doped evaporation-coating material comprises the steps of 1, preparation of ingredients; 2, spray granulation of a sizing agent; 3, tabletting forming; 4, preparation of a sintering body; 5, smashing and pulverizing; 6, founding and heap forming; 6, annealing treatment; 8, smashing into particles; 9, cleaning packaging. According to the preparing method, the steps of firstly, smashing the aluminum silicon ceramic sintering body, then firing and annealing the sintering body, and finally smashing the sintering body again are adopted, the density of the obtained aluminumsilicon glass evaporation-coating material is large, and sputtering phenomena cannot occur due to the light weight of the gun when the electronic gun bombards the evaporation-coating material; few pores exist, the air discharge amount in the coating process is reduced, and the quality of the coating layer is improved accordingly; the evaporation angle is consistent, the evaporation speed is uniform and stable, and focusing of the electronic gun is easy; dust falling is unlikely to occur to the coating material, and sputtering points cannot be generated in the coating process; meanwhile, the evaporation-coating material can be applied to plastic lenses in batch, so that the coating operabiity and the quality of the coating layer after coating are both greatly improved.

The invention relates to a semiconductor device, a manufacturing method of the semiconductor device, and an electronic device. The manufacturing method of the semiconductor device includes the steps: S1, providing a semiconductor substrate which includes a high voltage device region and a low voltage device region, and forming a patterned high voltage gate oxide layer on the high voltage device region; S2, forming a low voltage gate oxide layer at two sides of the low voltage device region and the high voltage gate oxide layer; S3, forming a low voltage gate structure and clearance walls of the low voltage gate structure on the low voltage gate oxide layer, and forming a high voltage gate structure and clearance walls of the high voltage gate structure at the same time, wherein the sum of key sizes of the clearance walls and the high voltage gate structure in the high voltage device region is equal to the key size of the high voltage gate oxide layer; S4, forming a metal silicide barrier layer in the high voltage device region and the low voltage device region and patterning the metal silicide barrier layer; S5, removing the exposed low voltage gate oxide layer; and S6, forming self-aligning silicides on the regions and the high voltage gate structure.

The invention relates to environmental-friendly special wastewater treatment equipment and in particular relates to zero-emission medical wastewater treatment equipment and method. The treatment equipment comprises a strong pretreatment mechanism, a biochemical mechanism and an advanced treatment mechanism connected in sequence, wherein the biochemical mechanism comprises a first treatment area and a second treatment area communicated with each other; a plurality of elastic packing layers are arranged in the first treatment area from top to bottom; each elastic packing layer is composed of a plurality of elastic packing chains; each elastic packing chain is formed by connecting a plurality of pieces of elastic packing in sequence; at least one bend is arranged on the elastic packing chain;and impellers are arranged at the bottom and side faces of the first treatment area. Compared with the prior art, the environmental-friendly special wastewater treatment equipment disclosed by the invention has the advantages that the packing is wholly stacked and sways along an S-shaped curve, the packing is orderly slowly impelled in a circular curve in the process, problems of violent wire fracture, drop and the like are solved, the sludge can be uniformly stirred and dispersed, biogas can be effectively dispersed, and rapid reproduction growth of novel activated sludge is promoted.

The invention discloses an industrial display screen connecting wire winding mechanism which comprises a display screen body, a fixing block is fixedly arranged on one side of the display screen body,a first rotating disc is rotatably arranged on one side of the fixing block, a second rotating disc is rotatably arranged on one side of the first rotating disc through a rotating shaft, and a connecting rod is hinged to one side of the outer wall of the first rotating disc. According to the connecting wire winding mechanism of the industrial display screen, through fixing of the second rotary disc, the connecting wire is fixed to the outer side of the rotary shaft, and the handle is rotated, so that redundant connecting wires are wound tightly; the connecting rod is clamped into the clampinggroove of the fixing ring on the outer wall of the second rotary disc to prevent the connecting line from falling off, the connecting line of the display screen is stably placed, the end of the connecting line is stably connected with the display screen body, falling off is avoided, and files are prevented from being lost.

The invention relates to the technical field of software testing devices, in particular to a testing device for testing a crawler acquisition technology. The device comprises: a host body, wherein a display mechanism is mounted on the host body, a locking mechanism is mounted on the host body, a rotating mechanism is mounted on the display mechanism, a limiting mechanism is mounted on the display mechanism, a holding mechanism is mounted on the host body, a ventilation mechanism is mounted on the host body, and a protection mechanism is internally mounted in the host body. Through cooperation of the display mechanism, the rotating mechanism, and the locking mechanism, the display mechanism and one side of the host body are folded and unfolded, and limiting control is facilitated when the display mechanism and the host body rotate are under the action of the limiting mechanism, so that the display mechanism is stable after being adjusted, the host body is convenient to hold through the holding mechanism, the dust-proof and heat dissipation effects are achieved through the ventilation mechanism, and protection of the ventilation mechanism is facilitated through the cooperation of the holding mechanism and the protection mechanism.

The invention discloses a lining coating forming technology for spiral steel pipe inner wall and outer wall solvent-free epoxy ceramic coatings. The technology comprises the following steps of carrying out shot blasting treatment on a spiral steel pipe product to be subjected to lining coating formation to make the inner wall and the outer wall of the spiral steel pipe product clean and expose theground color of the inner wall and the ground color of the outer wall of the pipe product; placing the pipe product subjected to shot blasting onto a riding wheel of a lining coating forming device,starting up a variable-frequency motor connected with the riding wheel to drive the pipe product to rotate, controlling the rotating speed of the pipe product to range from 30 revolutions per minute to 60 revolutions per minute, igniting a heating fire gun below the pipe product to preheat the pipe product, heating the pipe product to 50 DEG C to 70 DEG C, and shutting off the fire gun after heating; arranging one spraying trolley at one end of the inner wall of the pipe product and one spraying trolley at one end of the outer wall of the pipe product, using the spraying trolleys to spray solvent-free epoxy ceramic paint onto the inner wall and the outer wall of the pipe product at the same time, controlling the advancing frequency of the spraying trolleys to be within the range from 15 HZto 30 HZ, and forming the solvent-free epoxy ceramic linings on the inner wall and the outer wall of the pipe product; and placing the pipe product onto the riding wheel for rotation again till the pipe product cools and solidifies. With the lining coating forming technology for spiral steel pipe inner wall and outer wall solvent-free epoxy ceramic coatings, the manufacturing cost of inner linings and outer linings can be reduced, and the service life of spiral steel pipes can be prolonged.

The invention relates to a box opening robot anti-paper-box-falling-off device. The device comprises a robot, wherein two opposite large clamping jaws are arranged at the end part of the robot, and are used for clamping a paper box, a corresponding sucker is arranged on each large clamping jaw and is used for adsorbing the paper box, photoelectric switches are arranged on the large clamping jaws and are used for detecting contact signals of the large clamping jaws and the paper box to the robot, and a corresponding anti-paper-box-falling-off device body is arranged on each large clamping jaw.According to the technical scheme, the anti-paper-box-falling-off device bodies are arranged on the two large clamping jaws of the robot, when the large clamping jaws clamp boxes of cigarette blocks,due to the fact that the length of penetrating nails exceeds the end faces of the suckers and the nails can be inserted into the paper box, the large clamping jaws cannot cause the falling of the paper box in the clamping process.

The invention provides a removal device applied to a ring-pull can stretcher slideway, and belongs to the technical field of ring-pull can production. The technical scheme of the invention is that theremoval device comprises first slideways and second slideways fixedly connected with the first slideways, wherein blocking bars are fixedly arranged between the first slideways and the second slideways; the blocking bars are arranged on two sides of the first slideways and the second slideways; the blocking bar on one side comprises an upper half part and a lower half part, wherein an interval isarranged between the upper half part and the lower half part and is provided with a removal mechanism; the removal mechanism comprises a bottom plate, wherein the bottom plate is provided with a first bracket and a second bracket, and an opening and closing mechanism is arranged between the second bracket and the first bracket and drives the second bracket and the first bracket to carry out inverse movement; the bottom plate is also provided with a sucking disk mechanism; and the sucking disk mechanism can carry out translation on the ring-pull can to the first bracket and the second bracket.The removal device has the beneficial effects that unqualified ring-pull cans are simultaneously removed on the slideways through the sucking disk, working efficiency is high, when the ring-pull cansare removed, the removed ring-pull cans do not collide and rub with subsequent ring-pull cans, and the quality of the subsequent ring-pull cans is effectively guaranteed.

The invention discloses a fruit setting device and method suitable for small melons cultivated in the way of stereoscopic cultivation. The device comprises a hook, a first movable device, a second movable device, a first pulling rope, a second pulling rope and a net pocket. The distance between the hook and the net pocket is adjusted by the first movable device and the second movable device, so that the height of a hanging fruit is conveniently adjusted. When the fruit position is higher, the net pocket is adjusted to rise, the operation is convenient, and no re-knotting is needed to adjust the height of the net pocket. When the fruit position is lower and the fruit grows up, the weight of the fruit is increased, and the excess weight is transferred to the vine of the plant, avoiding forming dents on the surface caused by too much pulling force and affecting the appearance. When melons and fruits are picked, the fruit stem of the melon and fruit is cut off, and under the support of thepulling ropes, the support of a worker for the melon and fruit is reduced, and the hook is placed in a basket and then the net pocket is removed to prevent the fruit from falling and being damaged. Heavyweight melons and fruits are carried as easily and conveniently as lightweight melons.