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Category: Blog

Shrinkage Rate of Blow-Molded Products: The Influencing Factors

shrinkage-rate-of-blow-molded-products

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…

Low Extrusion Volume of The Blow Molding Machine: Reasons And Solutions

low-extrusion-volume-of-the-blow-molding-machine

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…

Three-layer Co-extrusion Blow Molding Machine[Operating Procedures]

three-layer-co-extrusion-blow-molding-machine

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,…

Acceptance of New Equipment for Blow Molding Machine: Matters Needing Attention

acceptance of new equipment of blow molding machine

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…

Large Blow Molding Machine: Power Outage or Abnormal Accident Shutdown

power outage or abnormal accident shutdown

Today, let’s talk about how to shut down a large blow molding machine during a power outage or abnormal accident during normal production. Hollow blow molding is a method of inflating a hot melt parison closed in a mold to form a hollow product by means of gas pressure. It is one of the most commonly used plastic processing methods, and it is also a rapidly developing plastic molding method. The mold used for blow molding is only a female…

Blow Molding Machine’s Scissors Not Cutting: Reasons and Solutions

blow molding machine's scissors not cutting

Today, let’s analyze the reasons and solutions for the plastic barrel blow molding machine’s scissors not cutting. When the plastic barrel blow molding machine does not cut the scissors, we must first consider the material supply and eliminate it step by step from the process flow. The first reason is that the cutting installation is unreasonable, the cutting edge of the scissors is not sharp enough, the scissors handle is larger, and the scissors spray too much water to reduce…

Video of Production and Operation of Blow Molding Machine

blow-molding-machine-video

Today I recommend everyone to watch a video of the production and operation of a hollow blow molding machine. The video shows the entire process of Yankang’s 1000L-6 layer plastic barrel large blow molding machine in production. This blow molding machine can produce multi-layer plastic barrels of different models and specifications, ranging from 200L to 1000L, with 1-6 layers.  In addition to blowing plastic barrels, this equipment can also support other product customization, such as customized transportation facilities, roadblocks,…

Extrusion Material of the Blow Molding Machine is Long and Short?

extrusion-material

The reason why the extrusion material of the blow molding machine is long and short is the main content of this post. There are many reasons for the extrusion material of the blow molding machine to be longer and shorter. The most important point is the control of the temperature. It can be divided into the following types: no-flow temperature, flow temperature, decomposition temperature, melting temperature, and glass transition temperature. It is very important in the extrusion blow molding production…

Abnormal Discharge of Blow Molding Machine Screw:Reasons and Solutions

abnormal-discharge-of-blow-molding-machine-screw

The reason and solution for the abnormal discharge of blow molding machine screw is the subject of this post. The phenomenon that the screw of blow molding machine is abnormally discharged is mainly caused by the excessive clearance of the screw and barrel of the extruder. We all know that the screw and barrel gap is too large, the flow of the extruded material is unstable, and the surface of the blown product is prone to horizontal wrinkles. The screw…

How to Change the Filter Screen of Hollow Extrusion Blow Molding Machine?

filter screen of hollow extrusion blow molding machine

Today, let’s talk about how to change the filter screen of a hollow extrusion blow molding machine. Let’s take a look at the impact of the hollow extrusion blow molding machine filter on plastic extrusion molding. In the production process of the plastic blow molding machine, the plastic raw material is transported to the die through the filter. The material can be filtered and the mixing effect of the material can be improved. It is worth noting that the filter…