New blow molding technology for medical manufacturers to use TPE material open channel
New Jersey city Denville September 20, 2016 news: FGH Systems Inc. and Teknor Apex were developed for the thermoplastic elastomer (TPE) material, equipment, tooling and mould technology of large quantities of extrusion blow molding, so that the latex and nitrile rubber (NBR) was more efficient and cheaper alternatives become possible.
Apex FGH and Systems Teknor in many years of cooperation in a number of techniques to improve, in order to solve the problem of elastic material in the extrusion blow molding and the design complexity of the breathing bag and other hollow medical equipment caused by the problem. These technologies ensure the continuous and stable production of high quality parts in key applications.
In the strict tests on various chemicals and polymer mixing, Teknor Apex into a standard blow molding compound Medalist MD 12445, used to replace the latex, NBR or PVC. Equipment modification, tooling and mold design work for FGH Systems in New Jersey City, Denville (Denville) of the factory, the factory is specialized in the field of blow molding factory, represents many famous equipment manufacturers OEM, also run a mold shop, a laboratory and a plurality of product development test production line.
FGH Systems owner Eric Hohmann pointed out that because the breathing bag must be folded flat when not in use, and in the air to form a uniform wall thickness of the circular "balloon", so in the design and processing problems. Mr Hohmann said: "although the various types of TPE, especially TPV injection blow molding process for automobile luggage rack, gear and other parts of the bellows pipe has been used, but for a long time, extrusion blow molding is usually used are HDPE, PP and PVC hard or non elastic resin. For the breathing bag, the difficult problem is to use the eight cavity mold to produce complex parts in the continuous extrusion process."
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In addition to the design development to solve these problems, provide the name Milacron Uniloy from FGH Systems shuttle blow molding equipment for commercial production. Hohmann said: "in order to improve the TPE molding technique, many experiments and our customers in the factory test of its own production line, try a variety of injection molding machine, bolt design, extrusion die and mold, a variety of Medalist and Teknor provided by Apex formula. Because of the success we have achieved, TPE's extrusion blow molding has now been applied to the complex design of other hollow parts, bottles, or bags in medical equipment and other industries."
Although the injection molding to produce hard parts, but it can produce hollow blow molding parts in non core mold, this process will use compressed air to make the plastic parison melt paste on the wall of the mould, the formation of finished parts. Teknor Apex TPE division Ross Van control products senior marketing manager Royen pointed out: "the key lies in the control of the extrusion blow molding parison wall thickness, and any inconsistency of raw materials will affect the quality of the parison. If the viscosity is too high, melt in the blow molding process will occur; and if the viscosity is too low, then the blank will be unstable. Teknor Apex developed specifically for extrusion blow molding of Medalist MD 12445 compounds, its high melt strength, can realize molding excellent performance and consistent flow characteristics, and can improve the stability of the parison. At the same time, the products made by this compound show the same elasticity, appearance and touch with the emulsion."
MD Medalist 12445 compounds of Shaw a hardness of 45, but Apex Teknor can also develop a more soft or hard for the specific application of the compound. The new compounds can be sterilized by gamma rays or ethylene oxide. It shows a high level of tear resistance. See physical properties data sheet. )
The economic benefits from the dip molding to the extrusion blow molding
Air flow rate for a patient who is controlled to flow to a patient during a surgical procedure. They are disposable articles that can be inflated by compressed air. Patients with different sizes to suit different size or age.
In the past, these breathing bags were made of natural rubber (NR) latex, a process known as "impregnation molding". Although protein allergy forced the manufacture of raw materials from the NR emulsion to NBR latex, but this alternative is more expensive than NR latex, and the impregnation process is also more efficient.
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