step one Pars Petro Arman Polymer Company started its activity in 1380, taking advantage of a background equivalent to a decade of research and experience on various advanced compounds and polymer engineering, specifically HIPS, ABS and PP materials. This company is equipped with the use of an experienced and expert team, as well as the use of modern science and technology and an advanced laboratory in its research and development unit, as well as in connection with various scientific, research and industrial centers, in such a way that in addition to producing The products required by all kinds of industries (with high quality and modern technology, as well as updating their products), also take steps in the direction of technical and engineering services and consulting. Granule production steps The use of granules in various plastic industries is of great interest, and in this regard, we can mention the granules of engineering and advanced compounds and recycled granules, the production of different granules in Petro Arman Polymer Pars Company requires different steps to become a raw material. Goes well.
Formulation and production of different granules depends on the needs of different industries and the classification of polymers. In this way, firstly, the customer's needs in each industry in the form of technical information or samples necessary for reverse engineering are provided to the commercial department of Petro Arman Polymer Pars Company, and then by examining the technical information in the research and development unit, an initial formula that matches the parameters of this information is prepared and In Xtro devices, the prototype is produced in a laboratory in the research and development unit. Then the resulting sample is tested in several stages to achieve the desired results and in accordance with the customer's technical information. After the customer's approval, the formula is provided to the main production line. Regarding the initial sample, after preparing the mill parts from the sample sent by the customer and testing it, basic technical information is prepared and according to the above steps, its main formula is ready for production.
In addition to these two methods, sometimes the needs of industries and customers without having samples and pieces and according to the experiences and scientific knowledge of experienced engineers of Petro Arman Polymer Pars, review and the main formula of the polymer they need are produced.
Fortunately, the research and development unit of Pars Petro Arman Polymer Company, with access to current information and communication with international polymer research institutes, is able to provide new products that meet the needs of the large market of polymer industries. In this way, by studying the various needs of automotive, electrical, construction, water and sewage, agriculture, mining, nuclear, etc. industries, it examines and deduces the formula for manufacturing the parts required by these industries, and as an independent unit, the raw materials of various parts for the first time It produces loads similar to imported materials. How to produce granules Granules are a type of polymer obtained in petrochemicals, which is in the form of grains and must be melted and shaped for uses and uses, and it is not a specific polymer. In fact, when the polymer is produced, it is melted in the extruder machine and in the extruder shield, a cutter or something similar cuts the output polymer regularly and granules are produced. The main goal in producing a polymer is to obtain a substance with properties It is desirable to obtain these properties and to control them during the process of becoming a polymer, depending on many factors such as temperature, pressure, catalyst, etc., and a polymer that has been melted and shaped for the first time will certainly have better properties than recycled polymers that have been melted several times. but some polymers retain their properties after melting and shaping several times. But some of them lose their properties after recycling.
Pars Petro Arman Polymer Company, knowing this and in order to reduce the cost of raw materials while maintaining the desired quality of materials, initially tried to produce advanced engineering compounds. And in that, depending on the needs of the customers, it uses raw materials with multiple recycling capabilities and maintaining the primary properties in the formula of its polymer granules, which are mainly used in geomembrane sheets and other industries.
However, the main granules produced by Petro Arman Polymer Pars Company are advanced engineering compounds in the automotive, electrical, and home appliance industries, and the preparation of a uniform and high-quality granule that does not cause a drop in product quality and does not cause process and quality problems for the consumer. It has always been one of the most important concerns of Petro Arman Pars Polymer Company.
Granule production
The systems of polymer molding machines (including various lines of injection, extrusion, etc.) are made in such a way that their input raw materials are better. in the form of small plastic pellets, these small pellets are produced with the same granules in two ways. First method: strand type granule production lines. It is simpler and is usually widely used in Iran. It is a method in which the polymer, after melting in an extruder and passing through metal filters and the final mold, is made into strands of molten plastic and passes through a pool. Water and cooling in the air are directed into a small mill and after being crushed, they become the final granule.
Dry granule production lines Hot die face cutting
In this method of making granule, After melting in the extruder and passing through the mesh and sieves, the crushed plastics come out through the small holes and are cut in the same molten form by a high-speed blade and at the same time by creating suction and passing through the cold pipe paths. and it dries. Two other methods of granule production are the water ring cutting system method and the underwater cutting method. It is a dry method and the underwater cutting method is part of the filament method and is expensive and suitable for thermoplastics.
In Pars Petro Arman Polymer Company, currently, granule producers are used in line method, which are produced in a set of up-to-date and modern equipments and have various companders and extruders to produce a variety of polymers.
The first stage includes gearbox mixers and jet mixers, which include petrochemical compounds, polymer additives, recycled materials, and fillers and fillers according to the formula provided by the research and development unit, are poured into the mixers, and thus different properties include Improvement of plastic or elastomer surface, durability and hardness, transparency, abrasion in air, electrical and electromagnetic properties, antistatic agents to absorb moisture and increase static charge, antioxidants, anti-UVs, etc. are achieved.
A set of elevators and cylinders bring the companders from the input hopper to the mixer and from the mixers to the input of the compander and extruder machine, and with the help of special feeders, the compound is sent to different extruders, the simplest and most widely used of which is the single screw type. In Petro Arman Polymer Pars company, in addition to the single-screw type with a vacuum defect, there are two-screw types (with two mardons) which are mainly used for special compounds with special compounds, as well as single-stage extruders and two-stage single-screw extruders with a strainer. Permanent That is used in Petro Arman Polymer Pars Company, which has a high production speed and easily produces composite compounds with fillers and different properties. The proper discharge of dangerous chemical gases and vapors trapped in the compound paste is very important, and it is easily removed by the vacuum system to prevent environmental hazards. - 50 kg per hour.
After the complete mixing of the dough and degassing in the cylinder and spiral unit and reaching the appropriate temperature, the dough is pressed through the cylinder and spiral towards the output mold and in a string form, and then It is cut and sized in suitable cutters. Factors that are important in the performance of granulator are high pressure and pumping power, high quality catalyst of screws (single screw and double screw).
Among the factors affecting the quality of the produced granules are the appropriate design for brittle plates and nets and screw speed. In Petro Arman Polymer Pars Company, an attempt has been made to design the brittle plate or (brerer plate) in a way It should be done in order to prevent the creation of any static point and also to prevent the pressure drop that causes the material to become confused after the machine. Therefore, in new devices with a fixed net (with fragile plates) it has been tried to comply with these two factors. and its structure should be selected in such a way that it can withstand the pressure of at least 60-70 MPa.
The selection of screen pack meshes of the granulator is also very important.
A quality granulator which leads to the production of suitable granules, it must be clean and free of dust and particles, and the uniformity of sizes leads to uniform density of the product, uniform feeding and mixing, and finally, the size of the granulator plates is important.
Prospect of production equipment automation
In order to innovate and update production equipment and subsequently achieve a variety of high quality products, Petro Arman Polymer Pars Company is trying to use equipment such as modern packaging systems with automatic equipment.<br Also, the approach of the technical engineering unit of this company is to use modern automatic equipment and electronic systems to automatically control all production stages, including pressure, temperature, cooling systems, etc.