Support Us!
KeyWallet Team tries its best to bring out a new version. Currently we did not decide if this new version should be a donationware or shareware. Please donate even $1 to help us in our decision. We are also eager to keep KeyWallet a free independent product.

You can also contact us by e-mail. But please use our community forums to communicate with us. We get a lot of mails with the same question.

Regarding the Windows XP compatibility please read the following forum posting

Who's Online
There are currently, 133 guest(s) and 1 member(s) that are online.

You are Anonymous user. You can register for free by clicking here.

Moderated By: cool
KeyWallet - Free Password Manager Forum Index Program Features The use of wood - plastic floor advantage
KeyWallet - Free Password Manager Forum Index
Author The use of wood - plastic floor advantage

Joined: Aug 10, 2016
Posts: 7535
  Posted: 2017-01-13 01:41

Extrusion of wood-plastic composite materials processing methods on the surface and plastic processing methods are basically the same, the main equipment seems to be roughly the same, but in fact very different. At present can be used for wood-plastic composite material extrusion equipment mainly twin-screw extruder and single screw extruder. Single-screw extruder is usually complete the task of material transport and plasticization. However, the traditional single-screw extruder in the wood-plastic composite extrusion is subject to greater restrictions, so the need for special design of the screw, so that it has a strong raw material handling and mixing plasticizing capacity, so as to achieve squeeze Before the completion of the material mixing granulation process.

Twin-screw extruder rely on the principle of positive displacement transport and processing of materials, it can be divided into parallel twin-screw extruder and cone-type twin-screw extruder. Parallel twin-screw extruder can be directly processed wood powder or plant fiber, wood powder drying and melting resin process can be carried out separately. Conical twin-screw extruder and the "compounding" type of equipment than the cone-shaped screw feeding section of larger diameter, the material can be compressed continuously, can shorten the material in the barrel of the residence time, and metering segment diameter Small, small shear on the molten material, which for processing thermoplastic wood-plastic material is a big advantage, it is called low-speed, low-power "profile" type of equipment.

In addition, extrusion head and cooling system is also related to the quality of extruded products, an important component. Due to the special nature of wood-plastic composites and the high filling volume of wood powder, the extruding material is poor in activity and difficult to be cooled. The conventional mold and setting equipment can not meet the needs of the products, which makes the design of the head not only guarantee the flow channel design The smooth transition and fair distribution of the flow, but also on the head of the building pressure and temperature control accuracy of key considerations, and the rational arrangement of the head of the heating and cooling device, so that the cooling speed, high precision, to ensure product quality And yield the purpose.

wooden wall paneling

outdoor lanai ceiling material

building a trellis with composite materials

 Profile  Quote

Joined: Oct 28, 2018
Posts: 71786
  Posted: 2019-06-20 23:47


 Profile  Quote
Jump To:
Copyright 1997-2004 KeyWallet GbR. All rights reserved.