58results about How to "Fix appearance problems" patented technology

The invention relates to the technical field of cow card paper manufacture, in particular to pulping equipment and a pulping method for cow card paper. The pulping equipment comprises a pulper, rough sizing equipment, a grading sieve, long fiber treating equipment and short fiber treating equipment, wherein the long fiber treating equipment comprises fine sizing equipment, a heat dispersion deinking machine and a dise mill; and the short fiber treating equipment comprises a low-concentration desander, a light slag remover and another heat dispersion deinking machine. The pulping method comprises the following steps: a, pretreating wastepaper; b, sorting long fiber and short fiber; c, treating long fiber; and d, treating short fiber. Wherein, long fiber pulp stock is used for making the bottom layer of the cow card paper; 100 percent of the sandwich layer of the cow card paper and 30 to 50 percent of the surface layer of the cow card paper are short fiber pulp stock; and the surface layer contains 50 to 70 percent of wood pulp. The invention radically solves the appearance problems of paraffin points and black spots in the cow card paper, and reduces the production cost of the cow card paper.

A universal wheel with a plastic wheel fork comprises the plastic wheel fork, two wheel fork bearings, a round head bolt, a nut, a lock bolt and a PU (polyurethane) wheel with two bearings at the hole center. The universal wheel is characterized in that two counter bored holes are arranged above and below the top of the plastic wheel fork respectively, a through hole is arranged between the upper counter bored hole and the lower counter bored hole of the plastic wheel fork, mutually-communicated holes are arranged on two wheel forks at the lower end of the plastic wheel fork, a wheel fork bearing is embedded in each of the upper counter bored hole and the lower counter bored hole of the plastic wheel fork respectively, the round head bolt penetrates into inner holes of the two wheel fork bearings, the nut is screwed on the round head bolt penetrating into the inner holes of the two wheel fork bearings, the lock bolt comprises a screw cylinder and a bolt, and the screw cylinder penetrates into the mutually-communicated holes and two inner holes of bearings of the PU wheel to be screwed with the bolt. The universal wheel with the plastic wheel fork after assembly can use a screw rod screwed on the round head bolt in two wheel fork bearing holes at the top of the plastic wheel fork to be connected with a recreational vehicle.

The invention belongs to the technical field of polyester thin films and in particular relates to a high-transmittance polyester thin film and a preparation method thereof. The high-transmittance polyester thin film comprises a core layer and a surface layer arranged at one side or two sides of the core layer, wherein the surface layer is prepared from the following components in percentage by mass: 93 to 97 percent of polyethylene terephthalate, 0.08 to 0.25 percent of inorganic particles and 2.75 to 6.92 percent of other auxiliary agents, wherein the inorganic particles are subjected to coating and modification treatment through a compatilizer. According to the high-transmittance polyester thin film provided by the invention, the inorganic particles subjected to the coating and modification treatment through the compatilizer are added into the surface layer, so that the binding capability of the inorganic particles and polyethylene terephthalate in the surface layer of the polyesterthin film is improved; a gap formed at the periphery of the inorganic particle in the biaxially-stretched and molded polyester thin film is reduced, so that the problem that the inorganic particles exist so that the light penetration rate is low is remarkably reduced; the binding force between the inorganic particles subjected to the coating and modification treatment through the compatilizer andpolyethylene terephthalate is relatively strong, and a series of appearance problems caused by the fact that the inorganic particles fall off are prevented.

The invention discloses a liquid crystal display panel, a preparation method thereof and a display device. The liquid crystal display panel has a display region and a fitting region surrounding the display region, and further comprises a liquid crystal substrate extending from the display region to the fitting region; the first polaroid is arranged on one surface of the liquid crystal substrate inthe display region; the second polaroid is arranged on the other surface of the liquid crystal substrate in the display region; a glass cover plate; the second polaroid is arranged on the first polaroid and extends from the display region to the fitting region; the ink layer is arranged in the fitting region and covers one surface, facing the first polaroid, of the glass cover plate; and the frame glue is arranged between the ink layer and the liquid crystal substrate in the fitting region. The frame glue is arranged between the liquid crystal substrate and the ink layer in the attaching region, and the liquid crystal substrate in the attaching region is free of wiring, so that ultraviolet light can enter from the attaching region to the frame glue, then the frame glue is cured, and the appearance problem caused by the fact that an ink silk-screen region needs to be perforated is avoided.

The invention discloses a bonding pad-based electroplating lead design. The bonding pad-based electroplating lead design comprises a plurality of bonding pads, wherein the plurality of bonding pads are arranged on a circuit board and are arranged adjacent to one another in a concentrated way, an electroplating lead is arranged among the plurality of bonding pads and is connected with the bonding pads at two sides, so that the bonding pads communicate with one another via the electroplating lead and finally communicate with an electroplating current. According to the method, the electroplatinglead is arranged among the bonding pads, the problem that an existing electroplating lead is additionally arranged on a signal line and the lead is resided after etching to cause signal completeness is solved, the problem of line thinness and line breakage caused by signal line etching in an existing etching electroplating process is prevented, and the appearance problem caused by resided lead after a printed circuit board assembly (PCBA) is assembled is prevented.

The invention discloses a polyamide material with excellent appearance, low water absorption and self-tapping slipping resistance, a preparation method and application of the polyamide material to preparation of an electric kettle temperature controller. The polyamide material is prepared from the following raw materials by weight percentage: 25-35% of PA66, 0-15% of PA6, 30-40% of a reinforcing component, 5-15% of microencapsulated red phosphorus flame-retardant master batch, 3-8% of a compatilizer, 0.2-2% of a self-tapping slipping resistant aid and 3-8% of other aids; wherein the compatilizer is at least one of polypropylene grafted maleic anhydride and polyethylene grafted maleic anhydride, and the melt index of the compatilizer is 35-150g/10min under the conditions of 190DEG C and 1.2kg; and the self-tapping slipping resistant aid is prepared from calcium aryl sulfonate and nano zirconium oxide. The preparation method comprises the following steps of: uniformly blending the raw material components except the reinforcing component according to a ratio to obtain a premix, adding the premix into a double-screw extruder from a feeding port, adding the reinforcing component from afirst exhaust port of the double-screw extruder, and carrying out melt extrusion, cooling, drying and pelletizing to obtain the polyamide material.

The invention discloses a preparation method of a suede structure of a crystalline silicon solar cell. The preparation method comprises the following steps: (1) forming a porous layer structure on the surface of a silicon wafer; (2) treating the porous layer structure of the step (1) with the mixed solution; (3) using the cleaning fluid to remove residual metal particles; (4) and then using the first chemical etching solution for surface etching, you can get the suede structure of the crystalline silicon solar cell. The preparation method greatly prolongs the service life of the mixture of hydrofluoric acid and nitric acid and ensures the stability and uniformity of the suede structure.

The invention relates to the technical field of solar cells, and particularly discloses a winding and plating removing method for a TOPCon cell and a preparation method of the TOPCon cell. The methodcomprises the following steps: manufacturing a water film on the back surface of a phosphorus-doped silicon wafer, and removing phosphorus-doped layers wound and plated on the front surface and the side surface by using a hydrofluoric acid solution; soaking the obtained silicon wafer in a KOH solution or NaOH solution containing an additive, removing polycrystalline silicon on the front surface ofthe silicon wafer, taking out the silicon wafer, and washing with water; placing the obtained silicon wafer in a KOH or NaOH and H2O2 mixed solution to be soaked and then placing the silicon wafer ina hydrochloric acid solution to be soaked after washing, taking out the silicon wafer to be washed, completing the soaking treatment in a corresponding reaction tank, and arranging two sets of circulating bubbling systems in the reaction tank. According to the winding-plating-removing method provided by the invention, the winding plating phenomenon of the TOPCon battery can be effectively solved,the excellent rate of products is ensured, the appearance problem and EL disqualification problem caused by winding plating are solved, and the battery conversion efficiency is improved.

An embodiment of the invention provides a screen metal frame assembly and a liquid crystal display device, relates to the field of display screen assembling and solves the problem of splicing errors of a screen metal frame. The screen metal frame assembly comprises a first frame and a second frame, wherein a first splicing surface formed at one end of the first frame is correspondingly attached to a second splicing surface formed at one end of the second frame; an elastic piece is arranged at one end, close to the first splicing surface, of the inner wall bottom surface of the first frame; one end of the elastic piece is attached to the inner wall bottom surface of the first frame; the other end of the elastic piece is connected with the inner wall bottom surface of the second frame. The screen metal frame assembly and the liquid crystal display device are applied to metal frame splicing of the liquid crystal display screen.

The invention provides an opening frame structure used for a refrigerating device. The refrigerating device comprises a box body. The opening frame structure is arranged at the opening end of the box body and comprises an appearance panel and a first reinforcing rib. A first side plate is arranged on the side, opposite to the outer portion of the box body, of the appearance panel. An arc protrusion is arranged at the position, at the connecting position of the first side plate and the appearance panel, on the outer surface of the appearance panel. The first reinforcing rib is arranged on the inner surface of the appearance panel, and a first insertion groove is formed by the first reinforcing rib and the first side plate. A transition section is arranged at the portion, between the connecting position of the first reinforcing rib and the appearance panel and the arc protrusion, on the outer surface of the appearance panel. The transition section covers the connecting position of the first reinforcing rib and the appearance panel. By means of the opening frame structure and the refrigerating device, due to the fact that the connecting position between the first reinforcing rib and the appearance panel is covered with the transition section, vision transfer can be caused, the problem that the connecting position shrunk in the injection molding process, and consequently the appearance panel is not attractive is effectively avoided, and the appearance quality of the opening frame structure is improved.

The invention provides an under-screen fingerprint recognition module. The under-screen fingerprint recognition module sequentially comprises a quarter-wave plate, a polarization bifocal microlens array, alight blocking layer, and a photoelectric sensor. The polarization bifocal microlens array is configured to diverge incident light polarized along a first direction or propagate the incident light along an original light path, and focus the incident light polarized along a second direction, wherein the first direction is perpendicular to the second direction; the light blocking layer is configured to allow a portion of the incident light to pass therethrough; and the photoelectric sensor is configured to receive part of incident light passing through the light blocking layer and convert the incident light into an electric signal.

The invention discloses an automatic flushing device, which comprises a brake cable and a push mechanism. One end of the brake cable is connected with an action mechanism of a door lock device, the other end of the brake cable is connected with the push mechanism, the push mechanism is provided with a push part pulled by the brake cable to act, and the push part is in direct or indirect linkage with a button of a toilet flushing device. The automatic flushing device is in linkage with the door lock device of a door, and when the door is opened, unlocking action of the door lock can be transmitted to the button of the toilet flushing device through the brake cable, and a toilet can be automatically flushed only by opening the door. The automatic flushing device recovers door opening force, needs no external power and can guarantee cleanness of a public lavatory.

The invention discloses a heat insulating door and window capable of preventing aging and fading. The heat insulating door and window comprise a mounting window frame. An overturning window frame is rotationally mounted at one end of the mounting window frame, double-layer glass is pasted on the inner side of the overturning window frame, and sealing adhesive tape is pasted at the joint of the double-layer glass and the overturning window frame. The heat insulating door and window are scientific and reasonable in structure and safe and convenient to use, through the arrangement of a cleaning groove, a cleaning plate, a connecting wire, a reset spring, a movable groove, a movable plate and a push handle, the inner wall of the bottom end of the mounting window frame can be cleaned, the cleaning difficulty of the inner wall of the bottom end of the mounting window frame is reduced, and the danger generated when the mounting window frame is cleaned is reduced; and through the arrangement of rotary connecting seats, sun-shading baffles, L-shaped grooves, conduction wires and an adjusting handle, the double-layer glass can be shielded through the sun-shading baffles, the double-layer glass is subjected to sun-shading protection, aging and fading of the double-layer glass during use are reduced, temperature rise caused by illumination can be reduced, and the heat insulating effect when the heat insulating door and window are used is improved.

The invention provides a flame-retardant ABS material for a weather-resistant washing-resisting closestool. The ABS material is prepared from the following ingredients in percentage by weight: 59 to 61 percent of ABS resin, 4 to 6 percent of AS resin, 5 to 7.5 percent of toughening agent, 17.6 to 17.8 percent of flame retardants, 5 to 6 percent of precipitated barium sulfate, 0.5 percent of wetting dispersing agents, 0.2 percent of anti-dripping agents, 0.4 percent of antioxidants, 0.3 percent of optical stabilizing agents, 0.3 percent of UV absorbents and 3 to 4 percent of titanium pigment. Auxiliary agents such as flame retardants, lubricating dispersing agents and antioxidants with the purity being 96 percent or more are used; the flowability of the ABS material is effectively improved;the product appearance problem is solved. In addition, through the addition of a proper amount of precipitated barium sulfate, the product dimension stability is improved; the tolerance of a producton the washing agent is improved; then, by selecting the proper optical stabilizing agents to be matched with the UV absorbents, the weather-resistant performance of the ABS material is effectively improved.

The invention provides a thin film and a shell made of the same thereby forming a back shell of an electronic product display and realizing shell protection. The film provided by the invention does not warp in the gluing and printing processes, the problem of adsorption or positioning sliding between films does not occur, and the subsequent processing and production efficiency is not influenced. The film has the advantages of few foreign matters inside, low haze, high full-light transmittance and no influence on the appearance decoration effect. And the molding performance and the fitting performance are excellent, the curved surface molding or fitting requirement can be met, the appearance is free of wrinkles or deformation and other undesirable phenomena before and after molding or fitting, the method can be suitable for plane and curved surface shells and shell protection, and the appearance quality is high. The shell made of the film provided by the invention can be subjected to UVphotoetching, and is suitable for high-end machine types and overseas brand machine types.

The invention discloses a universal wheel of a plastic wheel fork, which comprises a plastic wheel fork, two wheel fork bearings, a ball head bolt, a nut, a pair of lock bolts and a PU wheel with two bearings in the center of a hole, the plastic wheel fork There is a sink hole at the top and bottom respectively, and there is a through hole between the upper and lower sink holes of the plastic wheel fork. The two wheel forks at the lower end of the plastic wheel fork have mutual perforations, and the upper and lower sink holes of the plastic wheel fork are respectively inlaid with a wheel fork bearing. , A round-head bolt is inserted into the inner hole of the two-wheel fork bearing, and a nut is screwed on the round-head bolt inserted into the inner hole of the two-wheel fork bearing. The fork and the fork of the wheel are in the mutual piercing holes and the inner holes of the two bearings of the PU wheel, and then screwed with the bolt and the screw barrel. The present invention adopts the plastic wheel fork as the wheel fork of the universal wheel, which solves the problems of appearance, surface treatment and production process of the wheel fork of the universal wheel. Compared with the ordinary universal wheel, the production process is simpler and the cost is lower .