Nov 12, 2025Leave a message

How does a degassing unit in hose extrusion line accessories function?

Hey there! I'm a supplier of Hose Extrusion Line Accessories, and today I wanna chat about how a degassing unit in these accessories functions.

So, first off, let's understand what a hose extrusion line is all about. It's a setup used to make hoses. You've got different parts working together to transform raw materials into those flexible hoses we use in so many industries. And the degassing unit is a crucial piece of this whole puzzle.

Now, why do we even need a degassing unit? Well, when you're extruding hoses, the raw materials, usually plastics or polymers, often have gases trapped inside them. These gases can come from various sources. Maybe it's moisture that got absorbed during storage, or it could be by - products of chemical reactions that happen during the melting process. If these gases aren't removed, they can cause a whole bunch of problems in the final hose product.

One of the main issues is the quality of the hose. Those trapped gases can create bubbles inside the hose. These bubbles weaken the structure of the hose, making it more prone to bursting or leaking. Imagine using a hose in a high - pressure system; a bubble - filled hose just won't cut it. It can also affect the appearance of the hose. No one wants a hose that looks all bumpy and uneven because of gas bubbles.

So, how does the degassing unit work to solve these problems?

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The first step is the intake. The raw material, in a molten state, enters the degassing unit. This molten material is flowing through the extrusion line, and it's directed into the degassing chamber. The chamber is designed in a way that allows for proper handling of the material.

Once inside the chamber, the key principle at work is pressure reduction. The degassing unit creates a low - pressure environment. You see, gases are more likely to come out of a liquid or molten material when the pressure around it is reduced. It's like when you open a soda can. The pressure inside the can is high, and the carbon dioxide gas is dissolved in the liquid. When you open the can, the pressure drops, and the gas comes out in the form of bubbles.

In the degassing unit, the low - pressure environment causes the trapped gases in the molten material to start coming out. The design of the chamber helps in maximizing this gas release. It might have special baffles or surfaces that increase the surface area of the molten material. A larger surface area means more contact between the material and the low - pressure environment, which in turn allows for more efficient gas removal.

As the gases are released, they need to be removed from the chamber. That's where the vacuum system comes in. The degassing unit is connected to a powerful vacuum pump. This pump sucks out the released gases from the chamber. It continuously maintains the low - pressure environment and ensures that the gases don't get back into the molten material.

Now, let's talk about the role of temperature in this process. Temperature control is super important. The molten material needs to be at the right temperature for the degassing to work effectively. If the temperature is too low, the material might start to solidify, and the gases won't be able to escape easily. On the other hand, if the temperature is too high, it can cause other problems like degradation of the material. So, the degassing unit has temperature sensors and heating or cooling elements to keep the material at the optimal temperature.

Another aspect is the flow rate of the molten material. The degassing unit needs to be designed to handle the specific flow rate of the material in the extrusion line. If the flow rate is too fast, the material might not have enough time to release all the gases. If it's too slow, it can slow down the entire extrusion process. So, there are flow control valves and sensors that regulate the speed at which the material moves through the degassing unit.

Now, let me tell you about some of the other accessories in our hose extrusion line that work in conjunction with the degassing unit.

We've got the PVC Hose Packaging Machine. Once the hose is extruded and degassed, it needs to be packaged properly. This machine takes care of that. It can wrap the hoses neatly, ensuring they are protected during storage and transportation.

Then there's the Dual Motor PVC Hose Haul - off Machine. This machine is responsible for pulling the extruded hose along the line at a consistent speed. It works in harmony with the degassing unit and other parts of the line to ensure a smooth production process.

And the PVC Hose Fiber Forming Machine is used to add strength to the hose. It can embed fibers into the hose during the extrusion process, making it more durable.

If you're in the market for high - quality hose extrusion line accessories, including a top - notch degassing unit, we're here to help. Whether you're a small - scale manufacturer or a large industrial player, we've got the right solutions for you. Our products are designed to be reliable, efficient, and easy to integrate into your existing extrusion lines.

Don't hesitate to reach out if you have any questions or if you're interested in a quote. We're always happy to have a chat and see how we can meet your specific needs.

References

  • "Plastics Extrusion Technology Handbook"
  • Industry reports on hose manufacturing processes

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