Patents
Literature

93results about How to "Reduce raw material costs" patented technology

Magnesium alloy LED (Light Emitting Diode) tube profile and extrusion molding process thereof

The invention discloses a magnesium alloy LED (Light Emitting Diode) tube profile and an extrusion molding process thereof. The extrusion molding process comprises the following steps of: (1). according to the component proportioning requirements, smelting a magnesium alloy raw material; (2). preparing a magnesium alloy casting rod with the obtained magnesium alloy raw material; (3). heating the magnesium alloy casting rod to 400 DEG C to carry out heat preservation for 6 hours, and slowly cooling to room temperature along with a furnace after homogenization treatment; (4). heating the magnesium alloy casting rod subjected to homogenization treatment to 350 DEG C to carry out heat preservation for 2 hours, then slowly heating to 410 DEG C to carry out heat preservation for 2 hours, afterwards cooling to 380 DEG C to carry out heat preservation for 1 hour, and simultaneously heating an extrusion mould to 400 DEG C to carry out heat preservation; and (5). finally taking out the extrusion mould, assembling the extrusion mould on an extrusion machine, filling the magnesium alloy casting rod into the extrusion container of the extrusion mould for extrusion molding, so as to obtain the magnesium alloy LED tube profile by extrusion molding. The magnesium alloy LED tube profile and the extrusion molding process thereof have the advantages that the production efficiency and yield are improved and the machining cost is reduced on the premise that the size precision is ensured to meet the design requirements.
Owner:WUXI FUMEI LIGHT ALLOY TECH

High-temperature resistant oil well rubber sealing ring material and preparation method thereof

The invention provides a high-temperature resistant oil well rubber sealing ring material and a preparation method thereof. The rubber sealing ring material is composed of three parts: the inner layer and the outer layer are both composed of high-strength knitted cloth added with inorganic materials such as carbon black, nano zirconia, and the like; the middle layer is prepared through following steps: compounding rubber powder, which has been desulfurated through thermal mechanical shearing, with fluoro-rubber, adding a compatilizer to increase the compatibility between the rubber powder and the fluoro-rubber; then adopting high-strength knitted cloth, which has been subjected to a surface treatment, as the support body, adding inorganic filling materials such as carbon black, nano zirconia, and the like, and subjecting the knitted cloth added with inorganic filling materials to a high-temperature sulfide cross-linked forming so as to obtain the middle layer. The sealing ring knitted cloth and the rubber base material are subjected to processes of multi-layer compounding and sulfide forming. The sealing ring prepared by the invention has a good high-temperature resistant performance, and is capable of being used in areas with a large temperature difference for a long period.
Owner:CHANGZHOU UNIV

Die-cutting machine with waste recovering function

The invention discloses a die-cutting machine with a waste recovering function. The die-cutting machine is sequentially provided with a feeding device, a splitting device, an adhesive mounting bracket, a film roller, a die-cutting base, a double-electric eye device, a waste coiling device and a rewinding and cutting device. A composite material rubber roller is mounted between the double-electric eye device and the waste coiling device; and a release paper feeding device is mounted behind the composite material rubber roller. With the adoption of the die-cutting machine provided by the invention, the problem that the production cost is greatly increased as the die-cutting machine in the prior art cannot recover a wasted raw material for reusing can be solved. The waste recovering function is added on basis of the former functions of the conventional die-cutting machine, so that the use ratio of the material is improved. The skip distance for the recovered material is accurately set through a sensing cam and a puncher, so that the later-stage production of the recovered material is convenient. Furthermore, the recovered material and release paper can be well adhered together after passing through a convex rubber roller and a concave rubber roller in a manner that the convex rubber roller and the concave rubber roller are embedded mutually, and the convenience for later-stage use is achieved.
Owner:KUNSHAN HUAGUAN TRADEMARK PRINTING

Method for simultaneously preparing potassium nitrate and calcium chloride from calcium nitrate solution and potassium chloride

ActiveCN104445292AReduce raw material costsImproved separationCalcium/strontium/barium chloridesAlkali metal nitrate preparationChloride potassiumSide product
The invention relates to a method for simultaneously preparing potassium nitrate and calcium chloride from a calcium nitrate solution and potassium chloride. According to the method, the problems that the product yield is low and the purities of side products are low in an existing preparation process are solved. According to the main principle of the method, alcohol solvents are added in a cooling crystallization process of potassium nitrate according to the characteristic that a stable complex can be generated by calcium chloride and the alcohol solvents, so that calcium chloride cannot be separated out in a solid form; meanwhile, by adding the alcohol solvents, the solubility of potassium nitrate in the solution is reduced, so that the number of crystals of potassium nitrate can be substantially increased, and the yield of potassium nitrate is increased. The method has the beneficial effects that the cost of raw materials is low; by introducing the organic alcohol solvents, the separation effect between potassium nitrate and calcium chloride is remarkably improved; compared with a traditional double decomposition process, the purity of the obtained product is relatively high, and the yield is high; by virtue of closed circulation of the alcohol solvents, the environmental pollution is avoided.
Owner:JIAOCHENG KNLAN CHEM

Preparation process of environmental protection liner paper

The invention relates to a preparation process of an environmental protection liner paper, comprising the steps of: a. adding domestic waste paper and European waste paper into a pulper to break them into paper pulp; b. removing impurities from the paper pulp through a scalping screen and a slag separator in sequence; c. inputting the slurry into a grading sieve, separating long fibers and short fibers, and then conveying the long fibers and short fibers respectively to a long fiber slurry pond and a short fiber slurry pond; d. adding adjuvants composed of 10-20kg reinforcing agent per ton of slurry, 10-15kg sizing agent per ton of slurry and 10-18kg pearl alum per ton of slurry into the long fiber slurry pond and the short fiber slurry pond respectively; e. pumping the long fiber slurry into a first bed at a wire section for shaping up and dehydrating to a dryness of 10%-30%, and pumping the short fiber slurry into a second bed for shaping up and dehydrating to a dryness of 10%-30%, then conveying the shaped and dehydrated slurries into a composite roll to compound a piece of paper; f. pressing and dehydrating the paper to a dryness of 35%-50%; g. drying the paper so as to obtain a finished product of liner paper. The preparation process of the invention is characterized by low cost, low power consumption, outstanding energy conservation and better environmental protection.
Owner:LEE & MAN PAPER MFG

Wastewater treating agent for wastewater containing heavy metal and preparing method of wastewater treating agent

The invention discloses a wastewater treating agent for wastewater containing heavy metal. The wastewater treating agent is prepared from, by weight, 10-18 parts of nano-titania, 10-21 parts of dendrobium leaves, 45-73 parts of attapulgite, 10-17 parts of hydrochloric acid, 8-15 parts of ferric trichloride, 5-21 parts of polyacrylamide, 5-13 parts of dimethyl diallyl ammonium chloride, 1-5 parts of activated carbon powder, 3-14 parts of ethylenediamine tetraacetic acid disodium salt, 4-8 parts of tert-butylamine, 3-8 parts of hydroxymethyl starch, 1-5 parts of sodium silicate, 2-7 parts of sodium hydrosulfite, 4-16 parts of sodium hydroxide and 16-34 parts of water. The invention further discloses a preparing method of the wastewater treating agent. According to the prepared wastewater treating agent, the preparing process is simple, the raw material cost is low, and the raw material source is wide; the agent contains various active groups, the active groups and heavy metal can be subjected to a complexation reaction, a chelation reaction, an adsorption reaction, an exchange reaction and the like, and therefore heavy metal ions in wastewater can be removed. Thus, wastewater discharge can reach the standard, and remarkable economic benefits can be achieved.
Owner:许婷

Water and gas coupled valve of gas water heater

The invention belongs to the technical field of gas water heaters and particularly relates to a water and gas coupled valve of the gas water heater. The water and gas coupled valve of the gas water heater comprises a gas valve, a water valve and a middle water and gas linkage, wherein guide channels which are communicated with one another are positioned between a shell (1) of the water valve and the shell (2) of the water and gas linkage. The water and gas coupled valve of the gas water heater is characterized in that: the shell (1) of the water valve is made of plastics and has a water inlet (10), a water outlet (11) and an adjusting opening for adjusting water flow; and a valve rod (3) is arranged on the adjusting opening. The lower end of the valve rod (3) is circumferentially provided with a water flow channel (30) which has a grooved structure for adjusting the volume of water amount; the distance from a front end groove of the water flow channel (30) to a circle centre is not equal to that from a rear end groove of the water flow channel (30) to the circle centre; and the water flow channel has smooth transition from the front end to the rear end. The shell (1) of the water valve is made of a polyamide (nylon PA) PA66 material. The water and gas coupled valve which adopts the structure has simple and rational structural design and reduces production cost.
Owner:黎晚滔

Preparation method of permanent ferrite material

The invention relates to the field of permanent ferrite, in particular to a preparation method of a permanent ferrite material. The preparation method includes the steps that (1), a pre-burned material is prepared, specifically, the ferrite raw material is weighed according to the proportion, ball milling is carried out with a wet method at one time, the ferrite raw material is pre-pressed after being dried, and then pre-burned to obtain a block pre-burned material, and then the block pre-burned material is crushed to obtain pre-burned material powder; (2), crushing through the wet method is carried out, specifically, the pre-burned material powder and additives are ground under the condition of deionized water as a ball milling medium to obtain slurry for forming; (3), forming is carriedout, specifically, the forming slurry is subjected to centrifugal dehydration, and then pressed for forming under the condition of applying a forming magnetic field; and (4) sintering is carried out,specifically, a forming body is subjected to heat treatment to completely remove water and then sintered in the air to obtain the sintered body. According to the preparation method of the permanent ferrite material, the defects of high cost, low compactness and poor performance of the permanent ferrite material in the prior art are overcome, and the preparation method of the permanent ferrite material has the advantages of reducing the cost and even better performance of the ferrite material.
Owner:HENGDIAN GRP DMEGC MAGNETICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products