Mechanism of HDPE Thermal Expansion Coefficient Distributions under Extrusion Process
نویسندگان
چکیده
منابع مشابه
Thermal expansion coefficient of hydrogenated amorphous carbon
The coefficient of thermal expansion ~CTE! of hydrogenated amorphous carbon (a-C:H) was investigated as a function of the concentration of sp hybridization. The CTE, determined using the thermally induced bending technique, depends on the concentration of sp bonded carbon, increasing to the value of graphite as the sp concentration approaches 100%. By using a combination of the thermally induce...
متن کاملA Taguchi approach on optimal process control parameters for HDPE pipe extrusion process
High-density polyethylene (HDPE) pipes find versatile applicability for transportation of water, sewage and slurry from one place to another. Hence, these pipes undergo tremendous pressure by the fluid carried. The present work entails the optimization of the withstanding pressure of the HDPE pipes using Taguchi technique. The traditional heuristic methodology stresses on a trial and error appr...
متن کاملOn the Determination of Thermal Expansion Coefficient of Thermal Oxide
The accurate value of thermal expansion coefficient ( ) of thin film is an important thermal property in the design of microelectronic devices and microsystem. This research presents a microbridge buckling deformation caused by the residual stresses to determine the of thermal oxide (SiO2) film. The extraction of is supported through experimental means and finite element analysis (FEM) of the b...
متن کاملTwin-Screw Extruder and Effective Parameters on the HDPE Extrusion Process
In the process of polyethylene extrusion polymer material similar to powder or granule is under compression, melting and transmission operation and on base of special form, extrudate has been produced. Twin-screw extruders are applicable in industries because of their high capacity. The powder mixing with chemical additives and melting with thermal and mechanical energy in three zones (feed, co...
متن کاملThe coefficient of thermal expansion of highly enriched 28
For the new definition of the SI-unit of mass based on a fundamental constant, a redetermination of Avogadro’s constant is the goal of an international collaboration of numerous national laboratories and universities. Since a relative uncertainty of about 2 × 10 –8 is aimed at, the macroscopic density, the isotopic composition and the volume of the unit cell of a silicon single crystal have to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Seikei-Kakou
سال: 1995
ISSN: 1883-7417,0915-4027
DOI: 10.4325/seikeikakou.7.568