Category: Blog

Today we will talk about the difference between the single-ring barrel and double-ring barrel. Single-ring barrel and double-ring barrel are also called plastic logistics barrels, which are very common logistics containers in storage and transportation. It is often used in combination with other logistics containers and workstation equipment, used in various warehouses, production sites, and other occasions, and is more widely used in machinery, automobiles, home appliances, light industry, electronics, and other industries. It can be used to hold food…

Everyone knows that there are high-pressure and low-pressure plastics for blow molding. Today we are going to talk about the difference between blow molding high-pressure material and low-pressure material. The first is that the properties of the raw materials are different. High-pressure polyethylene refers to a polyethylene plastic raw material made by a high-pressure production process, with a density of 0.91 to 0.94 g/cubic centimeter, called low-density polyethylene, and the abbreviation LDPE. High-pressure polyethylene is a typical thermoplastic, a flammable…

Blow-molded septic tanks advantages and disadvantages are the topics of the post. Blow-molded septic tanks are equipment that treats feces and filters and settles them. The principle is that the solidified material decomposes at the bottom of the pool, and the upper layer of hydrated objects enters the pipe and flows away, preventing the pipe from being blocked and giving solidified objects, feces, and other garbage sufficient time to hydrolyze. A Septic tank refers to a small processing structure that…

Today, let’s talk about the application and prospects of blow-molded septic tanks. The blow-molded septic tanks are a small sewage treatment system, including a pool and a septic system. When the sewage enters the pool, it will decompose the sewage anaerobically and reduce the volume of solid waste. After it is discharged after precipitation, the degree of water pollution will be reduced. Blow-molded septic tanks can be widely used in the treatment of domestic sewage in residential quarters, schools, office…

Today, let’s talk about the role of the clamping device in the extrusion blow molding process. Generally speaking, the extrusion blow molding process is through three-layer co-extrusion blow molding. The A extruder produces the middle layer, the B extruder produces the inner layer, and the C extruder produces the outer layer. The blank is extruded continuously during blow molding, and the blow molding model is completing the blow molding process of a semi-finished liner. As we all know, the extrusion…

Today, let’s talk about how to control the molding temperature value in hollow blow molding. Molding temperature mainly includes parison temperature and mold temperature, which is one of the most important process parameters in hollow blow molding. First, let’s talk about the parison temperature. When the blow molding machine extrudes the parison, the temperature must be controlled well. If the temperature is too high, the cooling time will increase, and the tube blank hanging directly on the die will sag…

Today, let’s talk about the factors that affect the shrinkage rate of blow-molded products. Simply put, molding shrinkage means that the volume of the product cooled to room temperature is smaller than the cavity volume of the molding die at room temperature. When we design the mold, we generally use the average shrinkage rate to calculate the shrinkage value of the blow-molded product. The main factors affecting the shrinkage of blow-molded products are as follows: First, the influence of the…

Today, let’s talk about the reasons and solutions for the low extrusion volume of the blow molding machine. Customers often report that the extrusion volume gradually decreases after the blow molding extruder is turned on for a period of time. There are several reasons for the low extrusion volume of the blow molding machine: 1. The cold air has been turned on for a long time, causing the mold surface to be too cold. At this time, we have to…

Operating procedures of the three-layer co-extrusion blow molding machine are the topic of this post. The three-layer co-extrusion blow molding machine has the advantages of higher output, good product plasticization, low energy consumption, and simple operation. It completely solves the problems of flashing and uneven thickness of blow-molded products and can bring product quality to a new level. The three-layer co-extrusion blow molding production line adopts a new type of high-efficiency and low-energy consumption extrusion unit. Compared with similar equipment,…

What should be paid attention to in the acceptance of new equipment of blow molding machine? Whether the new equipment of the blow molding machine is installed in place is very important to the future use effect. Our newly purchased blow molding machine should be installed as far as possible on a concrete floor with good ventilation and sufficient light. The environment around the equipment should be open to facilitate the operation and maintenance of the equipment. It is generally…