LINA Machinery Industrial Co.,Ltd
The application of a new type of pneumatic clutch in the middle plate rolling mill has been applied to the Hukong Baizhang Fumin Maanshan Iron and Steel Company's medium plate factory for more than a year. It has achieved obvious social benefits and has the value of promotion and application. Guan Jian's Pneumatic Clutch Axial Force Rolling Mill 1 Proposal At present, the medium-plate rolling mill pressing mechanism commonly used by more than a dozen medium-sized board factories in China has...
SBR+BR Proportion: Any Purpose: to improve wear resistance, elasticity and cold resistance Product: Tread Four, styrene butadiene rubber + high styrene SBR+ high styrene Ratio: 75 ~ 50 / 25 ~ 50 Purpose: to improve wear resistance, tear strength and tensile strength Sole and sponge glue Five, styrene butadiene rubber + high density polyethylene SBR+HDPE Proportion: 100 / 5 ~ 20 Objective: To improve the process performance, reduce the scorch tendency and shrinkage of the rubber, and improve the...
Common rubber machinery equipment introduction It is a machine for preparing rubber or semi-finished products, including raw material processing machinery, rubber mixing machine, extruder, calender, curtain canvas pretreatment device and cutting machine. Rubber mixing machine: The rubber mixing machine is divided into two types: open type and closed type. Open rubber mixing machine (opening machine): The twin-roller open-type rubber mixer began production in 1826. Its structure is relatively...
The rubber pre-forming machine is a high-precision and high-efficiency rubber blanking equipment. It can produce all kinds of medium and high hardness, various shapes of blanks, and the precision of the blank is high, no bubbles, suitable for the production of rubber miscellaneous pieces and oil seals. , O-rings, tennis, golf, valves, soles, auto parts, medicine, agricultural granulation and other products. Rubber preforming is a ram-type machine consisting mainly of an extrusion device, a...
Important steps before mold making - mold selection When making molds for rubber products, the first consideration is the choice of mold materials. According to the quality, quantity, structure and so on of the product, the selection of the mold is determined. Mold selection is a very important part of the entire mold making process. The mold selection needs to meet three requirements: First, the mold meets the work requirements of wear resistance, toughness, etc. Secondly, the mold meets the...
In the rubber processing industry, mold scaling is a common phenomenon. A deposit is formed on the mold wall during the vulcanization process and gradually accumulates in subsequent production cycles. The previous literature discusses the effects of various factors that cause mold fouling. It has now been found that zinc sulfide is the most annoying reaction by-product of fouling during vulcanization for the various sulfides (and zinc oxide) contained in the polymer rubber mixture. There is no...
Recently, the Italian Plastics and Rubber Processing Machinery and Mould Industry Association (Amaplast) Research Center analyzed the first quarter of this year's foreign trade data released by the Italian National Bureau of Statistics (ISTAT). The data shows that the Italian rubber and plastics machinery trade has grown strongly. The analysis showed that the import volume increased by 15.3% in the first quarter, while the export volume increased by 16.3%. Exports continued the upward trend in...
Chemical analysis of rubber vulcanized smoke constituents The chemical composition of rubber vulcanized flue gas is very complicated. In the past, we have studied the composition of different rubber types and different compounding agents (ie different formulations), mainly including alkanes, alkenes, aromatic hydrocarbons, fused ring compounds, CR ( There will be hydrogen chloride, halogenated hydrocarbons), complexes containing sulfur compounds such as hydrogen sulfide, sulfur dioxide,...
How does a piece of rubber turn into a tire, taking you through the manufacturing process of bicycle tires? https://v.qq.com/x/page/x08755m6dft.html Please check a video by clicking the above link.
A. Vulcanization and foaming mechanism of foamed rubber extrusion tube 1. Coordination of vulcanization and foaming The vulcanization rate is matched to the foaming speed. No one can be much faster than the other. The vulcanization rate is too fast: the foaming agent cannot be broken down due to the strong mechanical force of the vulcanized rubber to foam the rubber compound. The vulcanization rate is too slow: the foaming agent decomposes the gas in the state of the rubber completely or nearly...
Nitrile rubber (NBR) is mainly used to prepare rubber products. As the temperature increases and the acrylonitrile content increases, the NBR thermoplasticity increases. The thermoplastic thermoplastic compound has good fluidity and is suitable for the preparation of molded products. The molded rubber product is prepared by charging a certain shape and quality of the rubber compound into a mold, vulcanizing it on a flat vulcanizing machine, and then demoulding and trimming. The quality of...
The meaning of rubber blending Improve process performance, performance and technical economics. About 70% of the rubber is processed and used in the form of rubber or rubber. Rubber process compatibility By mechanically or otherwise mixing the thermodynamically incompatible systems, a sufficiently stable blend can be obtained which forms a multi-phase morphology in the microscopic region but maintains its uniformity macroscopically. Factors affecting polymer blending: Mixing process...
In the daily operation of the rubber vulcanizer, there is often a problem of loud noise, which will have a certain impact on the normal work of the relevant staff, and will also affect the daily life of the surrounding residents, and the rubber vulcanizer is noisy. The problem is also a big problem that plagues many manufacturers. So how can we reduce the noise of the rubber vulcanizer? To create a good working and living environment for employees and surrounding residents? Here are some ways...
It is a machine for preparing rubber or semi-finished products, including raw material processing machinery, rubber mixing machine, extruder, calender, curtain canvas pretreatment device and cutting machine. Rubber mixing machine: The rubber mixing machine is divided into two types: open type and closed type. Open rubber mixing machine (opening machine): The twin-roller open-type rubber mixer began production in 1826. Its structure is relatively simple and modern is still widely used. Mainly...
Mixer mixing characteristics The plastic compound and various compounding agents are put into a high-temperature and high-pressure internal mixer, and after a short time of kneading, dispersing, and mixing, the mixed rubber of the process can be obtained. The mixing process is: lifting the upper top bolt → feeding → falling on the top plug → pressing and mixing → ending the mixing → turning the lower top bolt → turning → discharging → turning back → closing the lower bolt. The advantages of...
1. Plunger rubber extruder The plunger rubber extruder originated in the 18th century. The manual piston extruder manufactured by Joseph Bramah of England in 1795 for the manufacture of seamless lead pipes is considered to be the world's first extruder. Since then, in the first 50 years of the 19th century, Extruders are basically only used in the production of lead pipes, macaroni and other food processing, brick making and ceramics industries. 2, screw type rubber extruder The rubber extruder...
1. Rotor. The type and number of edges of the rotor, the number of edges and multiple shearing speed is fast, but the heat rise is high, the mixing time is shortened, and the mixing quality is affected. Influenced by the rotor type, the shear-type dispersion zone is between the rotor rib and the mixing chamber, and the force range is large and wide, the shearing force is large, the efficiency is high, and the mixing quality is good. The meshing type is that the dispersion zone is between the...
The European Rubber Magazine (ERJ) recently announced the 2010 annual global rubber machinery report. In addition to the announcement of the top 31 rankings, ERJ also conducted investigations into the purchase and expansion plans of rubber machine manufacturers. According to the survey, 53% of rubber machine manufacturers have plans to expand production, and 32% of manufacturers are preparing to upgrade their products. The world's rubber machinery manufacturers are generally optimistic about...
The new process of making packaging bottles from waste paper has been successfully developed by Kao Corporation of Japan. This technology can be used as a packaging container for bleach, shampoo, and the like. The new process uses plastic molding methods to make bottles and caps. The main procedure is: first put the recycled waste paper into water for immersion; then use a beater to form pulp; pulp is injected into a metal mold and dried. That is, all kinds of bottles. This type of bottle can...
A pile of discarded old newspapers or scratch papers are now in use in branch offices. In the science classes opened by the school, they made these waste papers a variety of environmentally-friendly and practical teaching aids, including fruits, topography, and globes. A pile of shredded old newspapers soaked in water. Sub-Division Elementary School Five (2) students, Liu Yan and his buddies, took their pieces out of the model of apples, pears, etc., and finally made lifelike environmental...
An Introduction of Stone Paper The main raw material of “stone paper” is a film-forming plastic (a large amount of limestone powder is the same as the filler used in traditional papers, but is a filler that can improve its opacity and reduce the amount of plastic). The active ingredient of plastics is generally the latex of petroleum cracking product polymers such as styrene, butadiene, and acrylic acid. The raw material oil is the world's limited and non-renewable mineral resources, and the...
Stone Paper Material Features Stone Paper Material Features: 1. Generally, inorganic materials are mixed and organic polymer materials are processed according to different proportions. 2, according to different ratios, different equipment can produce different functional requirements of environmental protection paper. 3, according to different materials, can effectively control the production cost of the product. 4, according to the product's market positioning and needs, you can choose...
[China Packaging Network] In 2010, the "stone paper" that caused the attention of the representatives of the two associations has now found new uses. According to related companies in Tianjin Jixian, stone paper can be widely used in food packaging, food shopping bags and food and beverage supplies. The principle of making paper from stone is to grind the calcium carbonate, the main component of the stone, into ultra-fine particles, and then use macromolecule materials and auxiliary agents as...
Recent News in China's Rubber Industry 1. China Drying Network China Mobile 3537 company Xishuangbanna Baolianhua relocated 45,000 tons of natural rubber processing line into production. According to an announcement issued by the Jihua Group on October 21st, 2011, the project has a total investment of more than 170 million yuan. The designed production capacity is an annual output of 45,000 tons of natural rubber, including 25,000 tons of compound rubber and 20,000 tons of standard rubber....
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