71results about How to "Improve vulcanization quality" patented technology

Relating to the rubber field, the invention discloses a production technology for chloroprene rubber. The technology comprises the processes of: rubber drying, plastication, mixing, semi-finished product cutting and vulcanization. According to the method, by strictly controlling the rubber drying temperature and time in the rubber drying process, the quality of the dried rubber material is improved. The mixing process adopts a two-stage mixing process, well controls the mixing time and discharge temperature, so that scorching phenomenon of chloroprene rubber is significantly reduced, and the rubber guiding, discharge and batch-out of an open mill are smooth, and no roll sticking phenomenon appears. The vulcanization process adopts N-tert-butyl-2-bisbenzothiazole sulfenamide as a vulcanization accelerator, which is safe and pollution-free and has no harm to the human body. The technological process adopts a drum type vulcanizing machine, the vulcanization efficiency and quality are greatly improved, and the produced product has high Mooney viscosity and good quality. The technological method has the advantages of good technology, simple operation, and good technological stability, thus being suitable for factory automation production.

The invention belongs to the technical field of preparation technology and vulcanization mold for a V belt of a washing machine and discloses a green preparation technology and a special vulcanization mold for the V belt of the washing machine. The vulcanization mold is mainly and technically characterized by comprising an outer sealed rubber jacket, a bottom mold, inner mold units and a gland, wherein the bottom mold, the inner mold units and the gland form a cylindrical inner mold assembly and an isolation fabric layer is arranged between the inner mold assembly and the outer sealed rubber jacket. In vulcanization, due to the isolation fabric layer arranged between the inner mold assembly and the outer sealed rubber jacket, the defects such as environmental pollution, cooled water chemical pollution, personal injuries and low production efficiency caused by the adoption of a mold releasing agent are avoided, the skidding phenomenon of the V belt in early use is avoided, the quality of the V belt of the washing machine is improved and the service life of the outer sealed rubber jacket is prolonged greatly.

The invention discloses a continuous microwave curing production line for rubber cables, which comprises a drive paying out machine, a horizontal storage hub, an upper tractor, a co-extrusion die, an automatic upper sealer, a high-temperature setting device, a microwave curing section, a hot-air curing section, a midpoint controller, an automatic lower sealer, a cooling section, a tractor and a cable machine which are sequentially connected. The continuous microwave curing production line provided by the invention not only has a rational design and a unique structure, but also has no pollution with big social benefit, and saves energy since the plastic generates heat directly by absorbing the microwaves without being heated by using equipment, thus the continuous microwave curing production line has the advantages of high energy use ratio, fast temperature rise, short desulfuration time, capability of continuous automatic production, reduced labor load of workers, improved production environment, good product property, and allowed dosage of permeability which is 15% larger than that of the conventional method.

The invention relates to a high-performance radial tire intelligent vulcanizing machine. The machine comprises a frame, a tire assembly mechanical arm, a pressurization mechanism, a vulcanizing chamber and a mould opening and closing mechanism, a central mechanism, a segmented mold drive device, an intermediate mechanical arm, a two-station four-point type rear inflation device, a tire detachment mechanical arm and a connecting roller way, wherein the frame is of a frame type integrated structure; and a lifting mechanism of the mould opening and closing mechanism adopts roller locking guidance, and a tire storage mechanism is arranged at the front end of the frame. The high-performance radial tire intelligent vulcanizing machine is of the frame type integrated structure, and a cylindrical insulator can be used for realizing pressure transfer, hydraulic and pneumatic pressure transmission and electrical signal control, so that the high automatic dual-mould vulcanizing machine integrated with machine, electricity, hydraulic pressure and pneumatic pressure can be realized. Steam and nitrogen are adopted as vulcanizing media, so that the vulcanizing efficiency and vulcanizing quality of a tire are greatly improved.

The invention belongs to the technical field of rubber belt manufacturing equipment, and relates to a device for manufacturing a connector, in particular to a finger-shaped cutting device. The finger-shaped cutting device comprises a cutting device, a diamond cutting line and a mobile platform component, wherein the diamond cutting line performs cutting movement, a belt end 1 and a belt end 2 which are superimposed together are fixed on an upper tray component, a stepping motor drives the upper tray component to move horizontally along a finger-shaped line track, and finally the belt end 1 and the belt end 2 are simultaneously cut into finger shapes. The finger-shaped cutting device manufactures the finger shapes accurate in size, saves labor time, enables sizing material to achieve good continuity in a vulcanizing process, does not generate a fault in the middle of the sizing material, enables tensile strength of the belt connector to reach prospective strength, and is difficult to break during the use process, safe and reliable to use, high in production efficiency, and low in labor intensity.

The invention provides vulcanization equipment and method for rubber products. The vulcanization equipment comprises a constant temperature vulcanization chamber, wherein one side of the constant temperature vulcanization chamber is provided with a plurality of vulcanization inlets, and the other opposite side of the constant temperature vulcanization chamber is provided with a plurality of vulcanization outlets; a plurality of inclined vulcanization channels for holding and conveying rubber products are arranged in the constant temperature vulcanization chamber; one end of each vulcanizationchannel is communicated with the vulcanization inlets, and the other end of each vulcanization channel is communicated with the vulcanization outlets; the angles between the vulcanization channels andthe horizontal plane towards the vulcanization inlets are acute. According to the vulcanization equipment and method for rubber products provided by the invention, the plurality of vulcanization channels are arranged in the constant temperature vulcanization chamber, thereby simultaneously realizing synchronous vulcanization of a large number of rubber products, and greatly improving the vulcanization efficiency. The rubber products are transported and output through automatic operation and control, thereby effectively lowering the labor intensity of workers.

The invention provides an electromagnetic sulfuration system. A sulfuration mold is improved; a magnetic conduction tank made of magnetic conduction ceramic materials for accommodating an electrifyingcoil is arranged inside the sulfuration mold; the electrifying coil is electrically connected with an external medium-high frequency power supply, so that medium-high frequency current is obtained; afirst magnetic field is generated for heating a steel plate; the electrifying coil is directly arranged inside the sulfuration mold; the magnetic field generated by the electrifying coil is restrained inside the sulfuration mold through the magnetic conduction ceramic materials; the condition that an alternating magnetic field generated by the electrifying coil acts on the mold body can be avoided, so that the alternating magnetic field can be totally used for heating the steel plate. An upper heating plate and a lower heating plate of a sulfuration machine can be fast heated through heat conduction oil; further, heat is fast conducted to an upper mold and a lower mold of the sulfuration mold. Therefore the temperature of the upper mold, a middle mold and the lower mold of the sulfurationmold can be fast and uniformly raised; the temperature of the steel plate at inside is fast and uniformly heated, so that the sulfuration efficiency and the sulfuration quality of a rubber support seat are improved.

The invention discloses a composite rubber mat for a pot bearing. The composite rubber mat comprises a rubber mat body and a cord fabric layer positioned on the upper layer of the rubber mat body, andthe cord fabric layer is formed by compounding a cord fabric with rubber. A production method of the composite rubber mat comprises the following steps: (1) preparing a rubber compound; (2) processing the rubber compound to form a preformed rubber block; (3) frictioning a cord fabric with the rubber compound to make the thickness of rubber adhered to the surface of the cord fabric be 1-2 mm in order to obtain a frictioned cord fabric; and (4) placing the frictioned cord fabric on the upper surface of the pre-formed rubber block, stitching the frictioned cord fabric and the pre-formed rubber block, and carrying out pre-heating and vulcanization molding to obtain the composite rubber mat for the pot bearing. The composite rubber mat for the pot bearing adopts NR and SBR as main rubbers, socomposite rubber mat has good elasticity and good wear resistance; and the surface of the composite rubber mat is compounded with the cord fabric, and the characteristics of good wear resistance and small deformation of amount of the fiber material of the cord fabric are used, so product damages caused by swinging and extruding in the use process are avoided, and the problems of wearing and extruding bloating of conventional rubber mats are solved.

The invention discloses a tire segment mold, and belongs to the field of tire molds. The tire segment mold can be widely applied to riding-use tires, light truck tires, engineering tires and giant tires, and comprises a mold body and an inner side tire forming capsule. A sealed heating chamber is arranged on the mold body. An electric heating device and a heating medium are arranged in the sealedheating chamber. The electric heating device is electric heating coils. Water or other liquids with high specific heat capacity, or anti-corrosion liquids or solids which are heated to 100-200 DEG C and can generate phase change serve as the heating medium preferably. In addition, the electric heating device is preferably arranged in the position, away from the inner side tire forming capsule, ofthe cavity wall of the sealed heating chamber, and the electric heating device is prevented from directly heating the mold.

The invention discloses a vulcanizing machine hot plate based on electromagnetic heating. The vulcanizing machine hot plate is characterized by comprising a first metal plate, a first copper plate anda second metal plate, wherein the first metal plate, the first copper plate and the second metal plate are superimposed and fixed from bottom to top in sequence, an induction coil is positioned belowthe hot plate, the thickness of the first metal plate is larger than 0 mm and smaller than or equal to 2 mm, a magnetic induction vortex dense region on the first metal plate is removed to form a hole, a lower heat insulation layer is arranged between the induction coil and the first metal plate, the lower heat insulation layer is fixedly connected with the first metal plate, and side heat insulation layers are fixedly arranged on the periphery of the first metal plate, the first copper plate and the second metal plate. The hot plate has the advantages that the temperature difference is reduced through multiple layers and multiple times, so that the temperature of the surface of the hot plate is close to the uniform temperature, and the vulcanization quality of rubber is improved; and moreover, the hot plate realizes heat transfer through the copper plate, so that the heat conduction speed is high, and the heating speed of the vulcanizing machine hot plate is further improved.

The invention relates to the technical field of rubber band processing equipment, and provides a rubber band vulcanization device with a rapid cooling function. The device aims to solve the problem that a rubber band stacking effect is difficult to guarantee after existing vulcanization equipment is transformed and put into production, vulcanization is incomplete, and the vulcanization effect of rubber bands and cooling after vulcanization is completed cannot be guaranteed. The device comprises a base box and a plurality of supporting legs installed at the lower end of the base box, a machining table board is horizontally installed at the upper end of the base box, a vulcanization bottom groove is formed in the upper end of the machining table board, a vulcanizing mechanism is arranged inthe vulcanization bottom groove, a inverted bowl-shaped vulcanizing shell upper cover is arranged above the vulcanization bottom groove in a matched mode, the vulcanizing mechanism comprises a gas conveying disc installed in the vulcanization bottom groove, the gas conveying disc is of an internal hollow structure, and two communicating pipes are arranged at the lower end of the gas conveying discin a penetrating mode. The device is particularly suitable for high-quality vulcanization of the rubber bands, and has high social usage value and application prospect.

The invention relates to a pattern block. The pattern block comprises a pattern block body. The pattern block body comprises a plurality of unit blocks (1). The pattern block further comprises heat source units capable of heating the pattern block body, and a control unit electrically connected with the heat source units. The heat source units are arranged inside the multiple unit blocks (1) so as to provide heat sources for the multiple unit blocks (1). The control unit comprises an operation module and an adjusting module. The operation module is electrically connected with the heat source units so as to operate startup of the heat source units. The adjusting module is electrically connected with the heat source units so as to adjust the heat values provided by the heat source units. The pattern block has high heat transfer efficiency. In addition, temperatures of different portions of the pattern block are independently controlled, so that it is guaranteed that different portions of the pattern block are at the optimal vulcanizing temperatures, the phenomena of excessive vulcanizing and insufficient vulcanizing are prevented, and the vulcanizing quality of tires is further improved.

The invention discloses a method for vulcanizing solid tires in a tank-type variable-pressure variable-temperature manner. The method comprises the following steps: a high-pressure flashing stage, that is, evacuating air between a tire blank and a mold; a high-pressure low-temperature vulcanizing stage, that is, closing the mold under the pressure of 1082 plus or minus 2T and vulcanizing in a gradually heating mode; a high-pressure high-temperature vulcanizing stage, that is, keeping the mold closing pressure of a vulcanizing tank to be 1082 plus or minus 2T and vulcanizing for 180min by adopting steam at 135 plus or minus 2 DEG C; a low-pressure high-temperature vulcanizing stage, that is, relieving the mold closing pressure of the vulcanizing tank until 260 plus or minus 2T, and vulcanizing with steam at 135 plus or minus 2 DEG C until the optimum vulcanizing is finished; a low-pressure low-temperature tank-sealing stage, that is, keeping the mold closing pressure of the vulcanizing tank to be 260 plus or minus 2T without steam introduction, and sealing the tank for 60min and finishing the vulcanizing operation; taking out the tire after the pressure in the tank is zero. The method can effectively solve the quality problem of cracks of the vulcanized tire and has significances in improving safety and service life of the vulcanizing equipment and saving energy.