49results about How to "Easy thermoforming" patented technology

Polyester compositions that provide a higher throughput in calendering processes may be prepared from a polyester having crystallization half time of at least 5 minutes, an inherent viscosity of about 0.55 to about 0.75 dL/g, a branching monomer, and a release additive. The polyester compositions show a combination of excellent melt strength with good shear response that permits higher calendering line speeds before melt fracture occurs. Also disclosed are processes for film or sheet by calendering the above compositions and the film or sheet produced therefrom. The polyester compositions, film, or sheet also may include plasticizers and/or flame retardants to increase their flexibility and enable their use in commercial applications requiring flame resistance. The film and sheet have excellent appearance and can be used in a wide range of decorative and packaging applications.

The invention discloses a processing system and technology for natural fibrous composite felt used for an automotive trim plate core layer. The system comprises a fiber net generating device. The fiber net generating device is connected with a drying oven through a bottom curtain, the bottom curtain is provided with a driving structure, fiber nets which come out of the drying oven pass through a hot pressing device and extends to a winding device, a cloth guide roller used for winding the fiber nets to be in a S shape and a supporting conveying roller are arranged in the drying oven, the hot pressing device is a pair of heating and compressing rotary rollers, the fiber net generating device comprises an opening device, a carding device and a net paving device, and the opening device, the carding device and the net paving device are connected in sequence. The processing system and technology for the natural fibrous composite felt used for the automotive trim plate core layer are low in cost, high in performance, environmentally friendly and capable of greatly improving the strength and tenacity of the natural fibrous composite felt, and the natural fibrous composite felt can be used as base materials of various automobile trim plates with high strength requirements.

The invention discloses a degradable bio-based seedling raising pot, a production method thereof, a regulation method in a degradation period and an application of the degradable bio-based seedling raising pot. The degradable bio-based seedling raising pot is produced from straw powder, wheat bran and an adhesive through dry-method hot pressing after mixing. The degradable bio-based seedling raising pot can keep certain strength in a seedling raising process and is relatively complete in appearance, after seedlings and the pot are transplanted to a field simultaneously, the pot can crack and disintegrate rapidly, and plant root extension is facilitated.

The invention discloses a thermosetting composite resin foam insulation board and a preparation method thereof. The insulation board is prepared from the following raw materials in parts by weight: 100 parts of pre-foamed and cured EPS (Expandable Polystyrene) particles, 50-2000 parts of fire-proof hybridized adhesive and 5-500 parts of curing agent. The thermosetting composite resin foam insulation board disclosed by the invention achieves the level A2. The thermosetting composite resin foam insulation board prepared by the fire-proof hybridized adhesive has the advantages that the firing surface is carbonized in case of fire, no vertical and horizontal fire spread exists, the self-extinguishing is achieved apart from the fire, no smoldering is generated, no ember dripping and no toxicity are generated, the amount of flue gas is low and the safety is guaranteed, so that level-A2 fire prevention can be truly achieved. The fire-proof hybridized adhesive disclosed by the invention has the advantages of high bonding strength and high toughness and is conductive to the latter thermoforming of particles, and the fire rating of the homogeneous mixed foam insulation board is ensured.

The invention belongs to the technical field of artificial boards, and particularly relates to a preparation method of a high-strength formaldehyde-free wood fiber board, the fiber board and application. The preparation method comprises the following steps of S1, wood pretreatment, wherein after poplar waste is crushed, two-step dipping with a mixed solution of potassium hydroxide and sodium sulfite and a calcium chloride solution, high-temperature treatment and drying for later use are carried out; S2, pre-pressing and forming; and S3, hot pressing for board forming. The mixed solution of potassium hydroxide and sodium sulfite is used for treating cellulose in wood waste residues, decomposition and hydrolysis of hemicellulose, lignin and the like are accelerated, TEMPO is used for oxidizing the cellulose, the oxidation degree is improved, calcium ions and cellulose nanofibers are crosslinked, the self viscosity is improved, and hot pressing forming of the fiber board is facilitated.

The invention mainly relates to the technical field of a macromolecular material, and discloses an antibacterial swim ring for children. The swim ring is made from a PVC resin, chlorinated paraffin, gas phase white carbon black, nanometer titanium dioxide, antibacterial zeolite, a stabilizer and aminophylline. The raw materials are simple, and the swim ring is safe and non-toxic, is antibacterialand antiskid, and can keep the children's skin healthy, and the operationality and security of the swim ring are improved. Chlorinated paraffin and graphene which is a stabilizer are added to the PVCresin to raise the heat-resistant temperature and to improve the ductility of the PVC resin, so that the PVC resin is easy for heating moulding, and the strength of the swim ring is improved. Antibacterial zeolite and aminophylline are added for adsorbing and king pathogens and resisting to bacteria and skid, wherein aminophylline can promote mixing and crosslinking of zeolite and the PVC resin, so that the stability and durability of the swim ring are improved. Hydrophobic gas phase white carbon black and nanometer titanium dioxide are added to increase the strength and improve the durabilityof the swim ring, can effectively resist skid, reduce hydrophily, allow rapid drying, and inhibit pathogen propagation.

The invention discloses a cutting machine, which belongs to the technical field of electric machinery. The cutting machine includes a frame, on which a workbench, a cutting mechanism and an automatic lifting mechanism are arranged, the cutting mechanism is arranged above the workbench, and the automatic lifting mechanism is connected with the cutting mechanism through a connecting rod. The lifting cylinder in the automatic lifting mechanism is connected with the cutting mechanism, the air source is turned on, and the lifting cylinder drives the cutting mechanism to move downward along the guide rails on the first support rod and the second support rod in the automatic lifting mechanism. A vertical scale is set on the workbench, a camera is set on the automatic lifting mechanism, and a control device is also set on the workbench. Both the camera and the pressure regulating valve of the lifting cylinder are electrically connected to the control device; Touch screen for cutting depth. The cutting machine of the invention can not only effectively control the cutting depth, but also greatly reduce the vibration of the cutting knife during the working process of the cutting machine, and improve the cutting precision.

The invention discloses an assembly line type hot press molding system, which comprises a lining feeding device, a tunnel type heating device and hot press molding equipment, wherein the tunnel type heating device comprises a long-strip-shaped shell, a conveying driving motor and two outer side conveying chain mechanisms; the lining feeding device is arranged on the left side of the tunnel type heating device; and the hot press molding equipment is arranged on the right side of the tunnel type heating device. According to the assembly line type hot press molding system, the left ends of the two outer side conveying chain mechanisms can be in butt joint with the lining feeding device, and the right ends of the two outer side conveying chain mechanisms can be in butt joint with the hot pressmolding equipment, so that an automobile roof lining on a material placement plate is automatically fed to a heating tunnel for heating and softening, and then the heated and softened automobile rooflining is automatically fed to the hot press molding equipment; accurate feeding of the left side of the tunnel type heating device can be facilitated through the lining feeding device; the hot pressmolding equipment can be used for conducting hot press molding on the to-be-processed lining.

Provided is a method for manufacturing a steel member through hot press forming using a steel sheet that contains a comparatively large amount of Si. The method allows hot press forming to be carried out satisfactorily by stably and reliably suppressing shedding/peeling of oxide scale during hot press forming, even without restricting hot press forming conditions to a narrow range. The steel sheet includes, in mass ratio, C: 0.15% to 0.35%, Si: 1.0% to 3.0%, Mn: 1.0% to 3.0%, Al: more than 0% up to 0.10%, Ti: ([N]×48/14) % to 0.10% (where [N] denotes the amount of N in the steel sheet), B: 5 ppm to 50 ppm, P: more than 0% to less than 0.015%, S: more than 0% up to 0.010%, and N: more than 0% up to 0.010%, the balance being iron and unavoidable impurities. The average oxygen concentration from an outermost surface of the steel sheet down to a depth of 10 μm in a sheet thickness direction is 0.70 mass % or higher.

The invention discloses a plane scroll spring forming installation mechanism, which comprises a mounting plate, an installation hole is arranged at the upper end of the installation plate, an adjustment groove is arranged at the upper end of the installation plate, and the adjustment groove communicates with the installation hole; a set column is arranged at the installation hole , the end of the set column is provided with a mounting seat, the mounting seat is provided with an opening, the inner side wall of the mounting seat is provided with a card slot, the card slot communicates with the opening, and the opening is provided with a first molding piece and a second molding piece, the first The forming piece and the second forming piece are scroll-shaped; one end of the set column is set with a fixed ring, the other end of the set column is set with a buckle ring, and the end of the set column is provided with a slot, the first form piece and the second form piece The inner end of the first forming piece and the outer end of the second forming piece are clamped in the slotting position. The invention facilitates the heating and forming of the plane scroll spring and facilitates the processing of the plane scroll spring.

The invention discloses an infantile pull-up diaper and a production process therefor. The infantile pull-up diaper comprises a front waistline region, a back waistline region, a thigh opening and a core layer, wherein the back waistline region is arranged at the tail end of the front waistline region, the core layer is arranged between the front waistline region and the back waistline region, a tear belt is arranged between the top of the front waistline region and the top of the back waistline region, a tearable adhesive tape is arranged at the outer side of the tear belt, the thigh opening is formed in the bottom of the front waistline region, a lumbar region enclosing port is formed in the top end of the front waistline region, a clinging belt is arranged at the inner side of the thigh opening, a discoloring belt is fixed to the brink of the core layer, and one end of the tearable adhesive tape is correspondingly fixed to the outer side part of the front waistline region or back waistline region. According to the infantile pull-up diaper and the production process therefor, the clinging and comfort of the pull-up diaper during wearing can be guaranteed, accidental falling-off can be avoided, relief of pressure to the legs and waist of an infant is facilitated, and meanwhile, the production efficiency of the pull-up diaper is guaranteed.

The invention discloses a high-strength deformation-resistant carbon fiber bulletproof composite plate and a forming process thereof, and relates to the technical field of carbon fiber bulletproof composite plate structures. The problem that an existing high-strength deformation-resistant carbon fiber bulletproof composite plate forming device cannot well and quickly machine and form a carbon fiber bulletproof composite plate is solved. Limiting mounting bases are mounted on the two sides of a forming device table correspondingly, supporting rods are arranged at the upper ends of the limiting mounting bases, a mounting fixing base is mounted above the supporting rods, an electric air cylinder is mounted above the mounting fixing base, a movable limiting base is mounted below the electric air cylinder, a first air cylinder is installed above the movable limiting base, a sealing box is arranged below the movable limiting base, a movable supporting seat is installed above the forming device table, a limiting rod is arranged at the upper end of one side of the forming device table, a supporting seat is installed on one side of the limiting rod, and a second air cylinder is arranged at the lower end of the forming device table.

The invention discloses a cutting machine capable of positioning and damping, which belongs to the technical field of electric machinery. The cutting machine that can be positioned and shock-absorbed includes a frame, on which a workbench is provided, a cutting mechanism and an adjustment and positioning mechanism are arranged on the workbench, the cutting mechanism is located above the workbench, and the adjustment and positioning mechanism is connected with the cutting mechanism. Institutional connections. The slide plate on the adjusting and positioning mechanism is connected with the worm gear lifter, and the height of the cutting knife can be adjusted; and the clamping arm on the adjusting and positioning mechanism is connected with the cutting mechanism, and the clamping arm is formed into a pair by the reciprocating motion of the piston rod in the hydraulic cylinder. Clamping positioning of the cutting mechanism. Shock-absorbing material is also embedded within the cutting mechanism. The present invention can not only adjust the height of the cutting knife according to the thickness of different cutting materials, and is flexible to use, but also flexibly clamps and positions the cutting mechanism after the height is adjusted. The shock-absorbing material embedded in the cutting knife mounting body further improves the cutting precision of the cutting machine of the present invention.

The invention provides: (1) a method for manufacturing methacrylate resin molded body, which is characterized in that a methacrylate resin paste containing polymerization initiator 100 to 5,000 ppm, alkyl sulfhydrate 500 to 3,500 ppm and terpenoid 50 to 150 ppm is injected into an element and polymerized; (2) a method for manufacturing methacrylate resin secondary molded body, which is characterized in that the slab-shaped methacrylate resin molded body obtained by the manufacture method recorded in (1) is subjected to thermoforming; (3) a methacrylate resin molded body, which is characterized in being formed by injecting methacrylate resin paste containing polymerization initiator 100 to 5,000 ppm, alkyl sulfhydrate 500 to 3,500 ppm and terpenoid 50 to 150 ppm and polymerized; and (4) a methacrylate resin paste containing polymerization initiator 100 to 5,000 ppm, alkyl sulfhydrate 500 to 3,500 ppm and terpenoid 50 to 150 ppm.

The invention relates to a manufacturing method of a glue filler. The manufacturing method specifically comprises the following steps: (1) weighing the following raw materials in percentage by weight: 65-75% of mineral substances, 15-25% of wood flour and 10% of a thickening agent; and 2) mixing the raw materials, uniformly stirring with a stirrer, and bagging. The adhesive has the advantages that the adhesive can replace flour, and the adhesive applying requirement for plywood production can be met in the adhesive mixing link; in the plate arranging link, the ecological flour is better than traditional flour, the plate arranging speed is increased, gluing plates are not prone to adhesion, operation of workers is facilitated, and the working efficiency is improved. In the cold pressing process, pre-pressing forming is easy, the pre-pressing effect is good, and the pre-pressing time is short. In the hot pressing process, the bonding strength of the plywood can be enhanced, hot pressing forming is good, and glue failure is not prone to occurring.

The invention provides a composite reagent for tape casting, a fuel cell and a preparation method of the fuel cell. The reagent comprises a composite solvent, a composite liquid binder and a composite plasticizer, the universal reagent for composite tape casting is obtained, the difference of raw material powder in different structures can be weakened when a fuel cell is prepared, the shaping, lubricity and ductility of a tape casting blank are optimized at the same time through the synergistic effect, and the service life of the fuel cell is prolonged. Hot press molding is easier between the tape casting layers, and the film has higher self-adaptability to oxides and metal powder, and is suitable for tape casting to prepare each structure of a fuel cell; a half cell containing an anode and an electrolyte of a fuel cell is prepared by adopting the reagent for tape casting, and a cathode is prepared by adopting a pyrolysis spraying mode, so that the preparation process of the fuel cell is simplified, the firing time of part of key components is prolonged, and the production cost is reduced. And the limitation that a conventional cathode cannot be prepared by sintering a battery support body mainly made of stainless steel or containing metal components in a high-temperature oxidizing atmosphere is avoided.

The invention discloses an ABS board machining method and equipment. The method comprises the following steps of 1, preparing materials, specifically injecting ABS raw materials, ASA raw materials, PMMA raw materials and sound insulation raw materials into four stirring machines, starting the stirring machines, and uniformly stirring the raw materials; 2, heating plastic, specifically heating theraw materials through an extruding machine; 3, exhausting air, specifically discharging water vapor in the raw materials after hot melting from an air exhaust hole of a material barrel; 4, quantifying, specifically quantitatively extruding the ABS raw materials, the ASA raw materials, the PMMA raw materials and the sound insulation raw materials; and 5, molding, specifically injecting the raw materials into five corresponding mold cavities in a mold to producing a composite board with five layers of structures. According to the technical scheme, the proportion of different raw materials can bequantified, ABS boards with different functions can be machined and produced, and the production efficiency of the ABS boards is improved.

The invention discloses a novel road bridge beam supporting seat dustproof structure, including a beam body, an upper cushion stone and an upper steel plate located below the beam body, a supporting seat located below the upper steel plate, a fixed side plate enclosing the upper cushion stone and the upper steel plate, a movable side plate located below the fixed side plate and enclosing the supporting seat, and a lower steel plate located below the supporting seat, and the upper edge of the movable side plate is hinged to the lower edge of the fixed side plate. According to the novel road bridge beam supporting seat dustproof structure, manufacture of the fixed side plate and the movable side plate by perspex is adopted, durability is good, and the structure is not prone to aging; and corrosion of the steel plate of the bridge beam supporting seat caused by seepage of water is prevented effectively, the influence of dust on a sliding surface of the supporting seat is prevented, agingof the supporting seat is slowed, and the life of the supporting seat is prolonged. The state of the supporting seat is tested visually without the need of using other methods, testing efficiency is improved, a supporting seat maintenance operation is not hindered, a replacement operation of the supporting seat during later maintenance is convenient, and long-time benefits are obvious.