32results about How to "Improve molding cycle" patented technology

An ejection moulding system is composed of a mould with internal heater, cooling channel and temp sensor, a valve connected to one end of said cooling channel, a controller connected to said heater and valve, and a negative pressure unit connected to another end of said cooling channel and said controller. Its ejection moulding method is also disclosed.

The invention discloses a brick forming machine which comprises a material distributing system, a vibrating system, a static pressure system and a control system. The material distributing system is used for filling a mold box of the vibrating system and the static pressure system at the same station with blank forming materials. When the technical parameters of the blank forming materials in themold box reach the preset value in the control system, the vibrating system and the static pressure system apply vibration and pressure on the blank forming materials in the mold box at the same timeaccording to respective set running parameters till the preset height set for the blank forming materials is reached, then a finished blank is disengaged from a mold, and the blank manufacturing process is completed. By means of the brick forming machine, the blank forming requirement needed by a building material product which is attractive and durable and has high strength performance can be obtained according to normal-state blank forming work conditions, and a very compact unidirectional rigid solid is formed.

An ethanediol polyterephthalate composition is prepared from the ethanediol polyterephthalate, rubber particles (0.02-0.3 micron) with cross-linking structure, and the grafted substance between unsufurized rubber and polar monomer and / or the grafted substance between thermoplastic elastomer and polar monomer through fusing and proportionally mixture. Its advantages are high toughness and machinability and better strength and rigidity.

The invention discloses a dovetail telescopic core. The dovetail telescopic core comprises a central rod and further comprises a cylinder with a cavity, wherein the cylinder is composed of a pluralityof wide telescopic blocks and narrow telescopic blocks arranged at intervals. The central rod is arranged in the cavity and movably connected with the wide telescopic blocks and the narrow telescopicblocks through dovetail grooves. The dovetail telescopic core is used for solving the problems that due to traditional mold structure design in practical production, production efficiency is low, themolding period is long, product size precision is low, structures are complex and cost is high, thereby simplifying mold structures, lowering cost and improving productivity.

The invention belongs to the technical field of glass bottle production, and discloses a rapid prototyping method for a glass bottle with cold start-up, which is used in the preheating production stage of an inline machine. The opening timing of air blowing is delayed by 70-90 units of cycle from the opening timing during normal production; the opening timing of the primary mold cooling is delayed by 15-25 unit cycles from the opening timing during normal production , the stop timing of the initial mold cooling is advanced by 50-70 units of cycle time from the stop timing during normal production; the opening timing of the mold cooling is delayed by 60-80 units of the opening timing during normal production. Period; wherein, the period of one unit is α, and α satisfies the following formula: the present invention delays the opening timing and stopping timing of positive blowing, mold cooling and initial mold cooling, and reduces the cooling air of the bottle conveyor. , which greatly reduces the rejection rate of glass bottles and reduces the cost.

A fully-automatic high-pressure production process for multi-body toilet rings with overturning. During the high-pressure grouting process, a high-pressure grouting pressure adjustment process is added: during the high-pressure grouting process, the grouting pressure is adjusted, and a pressure sensor is installed in the mold for monitoring. ; After the grouting pressure is adjusted, the pressure sensor sends a pressure value signal to the PLC, and the PLC then transmits the command to the hydraulic pressure proportional valve in the hydraulic fitting and locking system; the pressure proportional valve adjusts the pressure to meet the pressure suitable for grouting Environment: Complete high-pressure grouting in a qualified pressure environment and enter the mud discharge process. The invention overcomes the disadvantages of the traditional high-pressure grouting process, and is more convenient to operate, with higher green body yield, more stable, and longer mold life, which greatly reduces the use cost of the mold and shortens the molding cycle of the entire green body. The production efficiency is greatly improved, the good product rate of the product is improved, the moisture content of the green body shortens the drying time of the green body, and the degree of environmental pollution is reduced.

The invention relates to an environmentally-friendly plastic thrust bearing bush and a production method thereof. The environmentally-friendly plastic thrust bearing bush comprises a steel bush base and a surface plastic layer, wherein the surface plastic layer is bonded on the steel bush base directly by a solvent-free adhesive to form the thrust bearing bush, a spring cushion does not need to be arranged between the steel bush base and the surface plastic layer, and brazed connection is also not required between the steel bush base and the surface plastic layer. Compared with the prior art, the environmentally-friendly plastic thrust bearing bush and the production method provided by the invention have the advantages of short molding cycle, outstanding environmental performance, uniform elastic modulus and the like.

The invention discloses a polyamide material with high friction coefficient, its preparation method and application. It contains 60%-85% polyamide resin by weight, 5%-15% coated inorganic filler, 5%-25% toughening agent, 0.1%-0.2% silane coupling agent; 0.1%-0.5% antioxidant agent, 0.5%‑0.8% lubricant. The polyamide material with high friction coefficient has the characteristics of good wear resistance, high dynamic friction coefficient and excellent mechanical properties.

The invention discloses a completely biodegradable polyhydroxyalkanoate / polybutylene succinate blended alloy, which is characterized in that: the blended alloy is composed of polyhydroxyalkanoate, polybutylene succinate Alcohol esters, starch, fillers and other additives. The blended alloy of the present invention utilizes the heat resistance, good processability, high crystallinity, good tensile strength and impact toughness of polybutylene succinate to improve the heat resistance of polyhydroxyalkanoate materials Poor, severe viscosity during molding processing, slow crystallization, low mechanical strength and other defects, and reduce costs, expand the scope of application, the obtained blend alloy has good comprehensive properties, and can be used for blown film, extruded sheet, injection molding disposable environmental protection Supplies, medical and other fields.

The invention provides a carbon paper composite material for laser lamination molding and a preparation method thereof, which is composed of the following raw materials in the following mass ratio: 5-20 parts of carbon paper, 80-95 parts of resin matrix, coupling agent 1-5 parts, 0.5-3 parts of antioxidant, 0.5-5 parts of heat stabilizer and 0.5-5 parts of lubricant. The carbon paper composite material for laser lamination prepared by the present invention has the characteristics of simple preparation process, high mechanical strength, fast forming speed and low water absorption rate, greatly shortens the production cycle and reduces costs, and can be directly applied and promoted in In the field of laser lamination manufacturing technology, it can be directly processed into structural parts.

The present invention relates to A sort of U Shaped nylon oil filter mold, including front mold, back mold, mold core and slider, the front mold is fixed on the front mold fixing plate, and the front mold fixing plate is provided with a bottom hole; the outer peripheral surface of the mold core is provided with Horizontal stem grooves, vertical stem grooves, horizontal stem grooves and vertical stem grooves are interlaced, and bottom stem grooves are provided at the end of the mold core. Outer side of groove, vertical stem groove. The invention has simple processing structure and convenient cost, and is suitable for use by various small and medium-sized companies; the structure effectively avoids quality problems such as leaking screens and exposed bottoms; and the produced oil filter screen has good filtering effect, wear resistance, anti-corrosion, and long service life; The molding cycle is short and the production rate is high. Compared with the low production capacity of several hundred in the original technology, the existing technology can reach more than 6,000, which effectively improves the production efficiency; in addition, the external dimensions can be customized according to the drawings, and the applicability is wide.

The invention relates to a high-density polyethylene material and application thereof. The material comprises the components in percent by weight: 100% of high-density polyethylene, 5-80% of para-phthalic metal salt, 1-8% of silicone oil and 0.5-5% of antioxidant. The para-phthalic metal salt is selected from calcium terephthalate, magnesium terephthalate, zinc terephthalate, potassium terephthalate, sodium terephthalate, barium terephthalate, lead terephthalate, aluminum terephthalate, ferrum terephthalate or a mixture thereof. The silicone oil is selected from active silicone oil, dimethyl silicone oil, 201 methyl silicone oil or a mixture thereof. The antioxidant is selected from tris(2,4-ditert-butylphenyl) phosphate, pentaerythrite tetra [beta-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate], 2,6-di-tert-butyl-4-methylphenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-methyl-phenol or a mixture thereof. The polyethylene material provided by the invention has a small friction coefficient and favorable self-lubricity and can be used for manufacturing optical cable protection sleeves.