14results about How to "Improve foaming quality" patented technology

This utility model relates to a refrigeration device, which includes a housing, a liner, a first air duct structure, and guide plates. A foaming cavity is formed between the outside of the liner and the inside of the housing. The first air duct structure is disposed within the foaming cavity, and a guide groove is provided on the back side of the first air duct structure. The top end of the guide groove is open and faces the top of the housing, and the bottom end of the guide groove is open and faces the bottom of the housing. Two guide plates are disposed on the top upper side of the first air duct structure, located on opposite sides of the top opening of the guide groove. A guide channel is formed between the two guide plates, and one end of the guide channel is connected to the top opening of the guide groove. Foaming material falling into the guide groove can flow into the guide channel through the top opening of the guide groove, and flow along the guide channel toward the top area of ​​the foaming cavity, thereby increasing the foaming filling speed of the top area of ​​the housing and ensuring that the top area of ​​the housing is filled first, thus improving the filling quality of the top of the housing.

The utility model belongs to the field of polyurethane foaming, and particularly relates to a polyurethane foaming heat preservation device which comprises a supporting seat. The top of the supporting seat is fixedly connected with a connecting plate; a first fixing groove is formed in the middle of the connecting plate; the top of the connecting plate is fixedly connected with a motor; the output end of the motor is fixedly connected with a threaded rod; the middle of the threaded rod is in threaded connection with a sliding block. The sliding block is in sliding connection with the first fixing groove; a spray gun is mounted at the bottom of the sliding block; the top of the supporting seat is fixedly connected with a box body; the middle part of the box body is fixedly connected with a mold; a cover plate is hinged to the top of the mold; the air inlet pipe is communicated with the box body; the middle part of the box body is communicated with an air outlet pipe; by arranging the box body, heated airflow can enter the box body and heat the mold, so that a foaming material in the mold can be foamed at a proper environment temperature, the foaming uniformity and compactness of the material are improved, and the foaming quality of the device is improved.

The invention discloses a method for preparing a noise-reducing, heat-insulating, and aging-resistant PUR damping foam part, belonging to the technical field of automobile foam plastic parts. The method adopts polyethylene glycol, vinyl-terminated silicone oil, ionized water, modified powder and sodium lauryl alcohol sulfonate to prepare a foam flocculent material as a gradient modifier; firstly, the foam flocculent material is injected into a mold, and then the foaming material is injected from the bottom of the mold to perform gradient modification on the middle layer and the upper surface, so as to improve the sound insulation and noise reduction, heat insulation, aging resistance, flame retardancy and scratch resistance of the upper layer and the upper surface of the foam part, prolong the service life, make the molding surface less prone to defects such as pinholes, flow lines, surface depressions, etc., and improve the molding qualification rate.

The utility model discloses an injection molding machine foam forming device which comprises a base, the upper end of the base is fixedly connected with two symmetrically-arranged vertical plates, a limiting rod is fixedly connected between the two vertical plates jointly, the two limiting rods are sleeved with a movable plate jointly in a sliding mode, the upper end of the movable plate is fixedly connected with a lower mold, and the lower mold is fixedly connected with an upper mold. A shaking mechanism used for shaking the lower mold is arranged at the upper end of the base and comprises a motor fixedly connected to the upper end of the base, and a protruding block is fixedly connected to the tail end of an output shaft of the motor. Through the arrangement of the shaking mechanism, the vertical rod rotates with the output shaft of the motor as the axis, the movable plate shakes left and right in cooperation with the notch, after materials are injected, the materials in the lower mold are shaken and rapidly dispersed to all parts of the lower mold, and the foaming quality can be greatly improved; and meanwhile, the electric push rod drives the rack to move to finish mold opening and closing operation, and the scalding danger is avoided.

The invention discloses polyimide foaming equipment for conformal foaming of pipe fittings in space, which comprises an outer cavity, an inner cavity, a microwave infrared integrated device, a rotating mechanism, a swinging mechanism, a control cabinet and a fan, the microwave infrared integrated device is connected and fixed to the wall of the inner cavity through bolts to introduce heat into the inner cavity, the rotating mechanism is fixed to an inner cavity frame, the swing motor is fixed to the bottom of the outer cavity, and the control cabinet and the fan are fixed to the outer side of the outer cavity. Before foaming, polyester amine salt powder is evenly placed in a pipe cavity of the carbon fiber rod piece, and the pipe cavity of the carbon fiber rod piece is placed in a shaping device and fixed through a quick-release clamp. The foaming equipment disclosed by the invention adopts a microwave infrared integrated device for heating, is rapid in heating, high in foaming efficiency and low in safety risk, and conforms to green, energy-saving and efficient development; the swing mechanism and the rotating mechanism can ensure that polyester ammonium salt precursor powder is uniformly distributed in the rod cavity, the bubble generation and curing speed can be automatically adjusted, and the foaming quality is improved.

The application discloses a nitrogen foam generating device with variable foam diameter and a foaming method and application, belongs to the technical field of oilfield development, and comprises a foam generating device, and the foam generating device is most commonly used in profile control, water plugging and oil displacement construction wells. The application is composed of a gas access end, a liquid access end, a foam generating mechanism and a control part of variable foam diameter, achieves the purpose of changing the foam diameter, and can improve foaming performance and foaming quality. Meanwhile, the utilization rate of the foam in water plugging, profile control, channeling sealing and other process measures in oilfields can be improved, the profile control, water plugging and channeling sealing needs of different types of oil reservoirs can be met, the foam system has good temperature resistance, and the needs of preventing gas channeling in steam huff and puff of heavy oil reservoirs and plugging large channels in steam drive of heavy oil reservoirs can be better met, support is provided for oilfield oil increase and production increase, and guarantee is provided for an energy security strategy.

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator opening structure and a refrigerator. The cabinet opening structure comprises a cover plate, a first surrounding plate and vertical ribs. The cover plate includes an assembly surface. The first surrounding plate is arranged on one side of the cover plate and extends in the direction protruding out of the assembling face. The vertical ribs are arranged on the side, facing the assembling face, of the first surrounding plate and protrude out of the first surrounding plate. According to the refrigerator opening structure and the refrigerator, the assembling difficulty is reduced, and the foaming quality is improved.

The application discloses a freezer door trim structure and relates to the technical field of refrigeration equipment. The door trim structure comprises a trim main body and an exhaust structure. The exhaust structure is arranged on the trim main body and used for lapping a door tank contact surface of the door tank. The exhaust structure is a ladder-shaped structure, and the height of the ladder-shaped structure is 0.5 mm. The contact surface width of the ladder-shaped structure and the trim main body is 0.5-0.8 mm, and a width of 0.5 mm exhaust groove is arranged on the other surface of the ladder-shaped structure at intervals. The exhaust structure is arranged in the form of a ladder on the main body, so that the exhaust structure is first in contact with the door tank surface when the door tank is assembled, the door body is put into a foaming mold after assembly, the exhaust structure is in interference fit with the door tank surface, and the exhaust structure is closely attached, so that no gap exists, thereby improving the problem of liquid leakage on the front surface. The gas in the door body can flow out through the exhaust groove arranged in the exhaust structure, and the foaming liquid is difficult to pass through the 0.5MM channel due to high viscosity, thereby solving the problem that the gas cannot be discharged, and improving the foaming quality of the door body.

This utility model provides a vacuum foaming device and a water heater production system, belonging to the field of foaming technology. The vacuum foaming device includes a main body and a vacuum generating system. A vacuum chamber is provided in the main body, and an ejector structure is provided at the bottom of the vacuum chamber. The ejector structure includes an ejector plate and a driving system, which drives the ejector plate to move up and down within the vacuum chamber. A movable limiting platform is provided on the ejector plate, and multiple locking positions for securing foaming components are provided on the movable limiting platform. An injection head communicating with the vacuum chamber is also provided on the main body. The vacuum generating system includes a vacuum pump and a connecting pipe, with the connecting pipe connecting the vacuum chamber and the vacuum pump. This foaming device can meet the vacuum foaming needs of different water heater products and can reduce foam density, thereby reducing production costs.

The utility model relates to an air bag locking mechanism for an annular refrigerator door body foaming line mold frame, the foaming line mold frame comprises an upper mold frame and a lower mold frame, the inner side surfaces of the upper mold frame and the lower mold frame are hinged in an openable and closable manner, and a plurality of inverted U-shaped bolt buckles are longitudinally and upwards arranged on the outer side surface of the lower mold frame along the long side direction at equal intervals; clamping bolts which are of L-shaped structures and can be correspondingly connected with the bolt buckles in a buckled mode are longitudinally and downwards arranged on the outer side face of the upper die frame at equal intervals in the long edge direction of the upper die frame, and the tops of the clamping bolts are hinged to the outer side face of the upper die frame; a die lining plate matched with the lower die frame is placed on the top face of the lower die frame, and the die lining plate and the lower die frame are in elastic floating connection through four elastic pulling assemblies distributed in a rectangular shape. And an air bag is laid in a cavity formed between the mold lining plate and the lower mold frame. Through the cooperation mechanism of dynamic pressurization of the air bag and elastic pull uniform load reset, self-adaptive adjustment of the sealing pressure of the mold cavity and mold deformation compensation are achieved, the foaming quality is remarkably improved, meanwhile, the locking structure is simplified, and the production flexibility is enhanced.

The invention provides a foaming pressing device, a using method of a foaming device and an electric appliance box, and belongs to the technical field of foaming. The foaming pressing device comprises a base and a driving device, the base is provided with a first pressing plate and a second pressing plate, the first pressing plate is arranged on the base, the second pressing plate is movably arranged on one side of the first pressing plate, and the driving device is arranged on the base; and a pressing station for placing a product to be foamed is formed between the second pressing plate and the first pressing plate. The driving device is fixed to the base and drives the second pressing plate to move, so that the second pressing plate is close to or away from the first pressing plate. According to the device, the second pressing plate and the first pressing plate can be used for pressing a to-be-foamed product, so that the tedious step of manually winding masking paper on the product is avoided, the foaming efficiency is improved, and the foaming quality is ensured.

This utility model discloses a cross-shaped guide frame for a fully automatic on-site foaming device, relating to the field of foaming device technology. It includes a spraying device body, with an A channel and a B channel on one side. The A channel includes a front end and a rear end, and the B channel also includes a front end and a rear end. Cross-shaped guide frames A and B are fixedly connected inside the A and B channels, respectively. This utility model uses the A and B cross-shaped guide frames to form multiple flow channels with the inner walls of the channels, providing ample flow space for the two-component raw materials. This avoids the problem of reduced flow cross-sectional area or blockage caused by the heating wire pressing against the rear end of the channel due to thermal expansion, ensuring uniform mixing and stable conveying of the raw materials, improving foaming quality and the long-term stability of the device.

The invention discloses a cyclopentane foaming device, including a white material tank, a black material tank, a mixing head for polyurethane foaming, and a high-pressure metering pump, wherein the high-pressure metering pump is used to pump white material and black material to the mixing head respectively; the pipelines for pumping white material and black material by the high-pressure metering pump are connected to energy accumulators, wherein the back pressure of the energy accumulator on the pipeline for pumping white material is greater than the back pressure of the energy accumulator on the pipeline for pumping black material; the white material tank, the black material tank, and the high-pressure metering pump are all located in an airtight enclosure, and an explosion-proof system is arranged in the airtight enclosure. The object of the present invention is to provide a cyclopentane foaming device, so as to solve the problems of multiple equipment drive motors, high energy consumption, and large safety hazards when using cyclopentane foaming in the prior art; and the problems of complex structure, high cost, large volume, and difficulty in miniaturization of equipment, which can not only ensure high-precision metering, but also can greatly improve safety performance and greatly reduce equipment cost, and significantly reduce energy consumption.