پروژه و مقاله های رشته های مکانیک-ساخت و تولید و ماشین افزار

پروژه , تحقیق و مقاله های رشته مکانیک - ساخت و تولید و ماشین افزار

پلی اکسی متیلنPOM H4320

High molecular weight grade for the extrusion of semifinished product.particularly thick walled product can be extruded at high output rates.the material also featuers high thermal stability and low discoloration.
Abbreviated designation according to ISO 1043: POM
Designation according to ISO 9988-1,POM-K,E-GNR,01-002.

 

 

 

Melt Volume-Flow Rate

حجم ذوب - سرعت سیال

Temperature

دما

Load

بارگذاری

Molding shrinkage (parallel)

افت قالب یا جمع شدگی قالب (پارالل)

Molding shrinkage (normal)

افت قالب یا جمع شدگی قالب (نرمال)

 

Tensile Modulus

مقدار کششش پذیری

Yield stress

تنش تسلیم

Yield strain

میزان کرنش

Nominal strain at  break

حداقل کرنش  در  شکستن

Stress at 50% Strain

میزان فشار در 50%کرنش

Stress at break

تنش تسلیم

Strain at break

میزان کرنش

Tensile creep modulus (1 h)

مقدار کششش پذیری در رفتگی

Tensile creep modulus (1000 h)

مقدار کششش پذیری در رفتگی

Charpy impact strength(+23˚c)

استحکام برخورد (پاندولی)

Charpy impact  strength (-30˚c)

استحکام برخورد (پاندولی)

Charpy notches impact strength (+23˚c)

استحکام ضربه ای در حالت دارای  شیار(پاندولی)

Charpy notches impact strength (-30˚c)

استحکام ضربه ای در حالت دارای  شیار(پاندولی)

Tensile notches impact strength (+23˚c)

کشش ضربه ای در حالت دارای شیار(پاندولی)

Puncture -maximum forced (+23˚c)

حداکثر نیروی شکست

Puncture -maximum forced (-30˚c)

حداکثر نیروی شکست

Puncture energy (+23˚c)

انرژی شکست

Puncture energy (-30˚c)

انرژی شکست

 

Melting temperature (10°c/min)

دمای خمش در زیر بارگذاری

Glass transition temperature (10°c/min)

دمای خمش در زیر بارگذاری

Temp of deflection under load(1.80 MPa) 

دما برای زیر خمش  

Temp of deflection under load(0.45 MPa) 

دما برای زیر خمش  

Temp of deflection under load(8.00 MPa) 

دما برای زیر خمش  

Vicat softening temperature (50 °c/h 50 N)

 

Coefficient of linear thermal expansion(parallel)

ضریب انبساط گرمایی خطی (موازی)

Coefficient of linear thermal expansion(Normal)

ضریب انبساط گرمایی خطی (نرمال)

Burning behaves at 1.5 mm nom. thickens

اشتعال زایی در حداقل ضخامت 1.5 میلیمتر

Thickness Tested

تست ضخامت

UL recognition

شناسایی

Burning behaves. at thickness h

h

اشتعال زایی در ضخامت

Thickness tested

تست ضخامت

UL recognition

شناسایی

Burning behaves. at 5V thickness h

h

اشتعال زایی در ضخامت

Thickness tested

تست ضخامت

UL recognition

شناسایی

Oxygen index

میزان اکسیژن

 

Relative permittivity(100 Hz)

ضریب دی الکتریک

Relative permittivity(1 MHz)

ضریب دی الکتریک

Dissipation factor(100 Hz)

ضریب اتلاف

Dissipation factor(1 MHz)

ضریب اتلاف

Volume receptivity

حجم مقاومت

Surface receptivity

سطح مقاومت

Electric Strength

سطح مقاومت

Comparative tracking index

شاخص پیگیری نسبی

 

Water absorption

جذب آب

Humidity absorption

جذب رطوبت

Density

چگالی

 

Viscosity number

شماره ویسکوزیته

Indicative density (PE only)

 

Luminous transmittance

 

Density of melt

دمای ذوب

Thermal conductivity of melt

رسانایی گرمایی ذوب

Spec.heat capacity of melt

ظرفیت گرمایی ویژه ذوب

Eff thermal diffiusivity

 

Ejection temperature

دمای تزریق

 

Processing conditions acc.ISO

 

Injection molding ,melt temperature

قالب گیری تزریقی ،دمای ذوب

Injection molding ,mold temperature

قالب گیری تزریقی ،دمای قالب

Injection velocity

سرعت تزریق

Pressure at hold

 

Compression Molding, molding temperature

قالبگیری متراکم،دمای قالبگیری

Cooling rate

سرعت سرد شدن

Molding time

زمان قالبگیری

Demolding temperature

دمای دوباره قالبگیری کردن

 

Regional availability : North America , Europe, Asia Pacific, South and Central America, Near East/Africa, India

مناطق مورد دسترس

Processing:Injection moalding,Film Extrusion,Profile Extrusion,Sheet Extrusion,Other Extrusion

 

Delivery From : Pellets

بارگیری: به شکل گلوله

Additives:Release agent

افزودنی:

 

 

قالبگیری تزریقی

Preprocessing

مراحل تدارکات قبل از ایجاد سفارش خرید شامل ایجاد درخواست خرید و تایید آن

Injection Moulding, Melt Temperature,Range:190-230˚c

عملیات تزریق و دمای ذوب در محدوده 230-190 درجه

Injection Moulding, Melt Temperature,recommended:200˚c

عملیات تزریق و دمای ذوب توصیه شده در 200 درجه

Injection Moulding, Mold Temperature,Range:60-100˚c

عملیات تزریق و دمای قالب در محدوده 60-100 درجه

Injection Moulding, Mold Temperature,recommended:90˚c

عملیات تزریق و دمای قالب توصیه شده در90 درجه

Proccesing

 

Usual single flighted three section screws with an effective screw length of at least 15 D,better 20-23 D are suitable for the injection molding of Ultraform.

 

Pretreatment

 

Granules or pellets in original packaging can be processed without any special pretreatment granules or pellets which have become moist due to prolonged or incorrect storsge (e.g.by formation of condensed water)must be dried in dehumidifying or recirculating air dryers for approx 3 hours at about 100-110 ˚c. The moisture content should not exceed 0.2%.

 

Postprocessing

 

If parts were produced at the comparatively low mold temperature (e.g. in order to obtain short cycle times)and must not change their geometry in use thermal postprocessing inducing dimensional changes by postcrystallazation may be necessary.In such cases parts should be stored in an oven with recirculated air at temperatures of 100-130 ˚c until dimensions dont change significantly any further.The time needed for this has to be determined experimentally.

 

 

Processing

 

Extrusion,Prepreg, Melt Temperature 175-180 ˚c

 

Extrusion,Pipes, Melt Temperature 175-180 ˚c

 

Extrusion,Cable sheathing, Melt Temperature 175-180 ˚c

 

Processing

 

Ultraform can be processed to particular advantage using three section screws having a total length L of 20-25 D and a constant pitch of about 1 D.However short- compression zone screws may also be used.

 

Pretreatment

 

Granules or pellets in original packaging can be processed without any special pretreatment granules or pellets which have become moist due to prolonged or incorrect storsge (e.g.by formation of condensed water)must be dried in dehumidifying or recirculating air dryers for approx 3 hours at about 100-110 ˚c. The moisture content should not exceed 0.2%.

 

Postprocessing

 

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise,specially in the case of large wall thicknesses.This stresses can be removed by subsequent heat treatment.Tempering is essential when high demands are placed on dimensional stability.It can be carried out in air liquid wax or oil at temperatures of 130-150,usually 140-145 ˚c.Lower temperatures are not effective.Durating :10 minutes per 1 mm wall thickness.

 

 

Processing

 

Extrusion,Profiles, Melt Temperature 175-180 ˚c

 

Processing

 

Ultraform can be processed to particular advantage using three section screws having a total length L of 20-25 D and a constant pitch of about 1 D.However short- compression zone screws may also be used.

 

Pretreatment

 

Granules or pellets in original packaging can be processed without any special pretreatment granules or pellets which have become moist due to prolonged or incorrect storsge (e.g.by formation of condensed water)must be dried in dehumidifying or recirculating air dryers for approx 3 hours at about 100-110 ˚c. The moisture content should not exceed 0.2%.

 

Postprocessing

 

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise,specially in the case of large wall thicknesses.This stresses can be removed by subsequent heat treatment.Tempering is essential when high demands are placed on dimensional stability.It can be carried out in air liquid wax or oil at temperatures of 130-150,usually 140-145 ˚c.Lower temperatures are not effective.Durating :10 minutes per 1 mm wall thickness.

 

 

Processing

 

Extrusion,Plates, Melt Temperature 175-180 ˚c

 

Processing

 

Ultraform can be processed to particular advantage using three section screws having a total length L of 20-25 D and a constant pitch of about 1 D.However short- compression zone screws may also be used.

 

Pretreatment

 

Granules or pellets in original packaging can be processed without any special pretreatment granules or pellets which have become moist due to prolonged or incorrect storsge (e.g.by formation of condensed water)must be dried in dehumidifying or recirculating air dryers for approx 3 hours at about 100-110 ˚c. The moisture content should not exceed 0.2%.

 

Postprocessing

 

Due to the different solidification and cooling of the melt which varies according to time and place stresses may arise,specially in the case of large wall thicknesses.This stresses can be removed by subsequent heat treatment.Tempering is essential when high demands are placed on dimensional stability.It can be carried out in air liquid wax or oil at temperatures of 130-150,usually 140-145 ˚c.Lower temperatures are not effective.Durating :10 minutes per 1 mm wall thickness.

 

 
 
Hydro Chloric Acid (36% by mass) at 23˚c اسید هیدروکلریک
Nitric Acid (40% by mass) at 23˚c اسید نیتریک
Sulfuric Acid (38% by mass) at 23˚c اسید سولفوریک
Sulfuric Acid (5% by mass) at 23˚c اسید سولفوریک
Chromic Acid Solution(40% by mass) at 23˚c اسید کرومیک محلول
SAE 10W40 muligrade motor oil at 130˚c  
SAE 80/90 hypoid grade motor oil at 130˚c  
Diesel fuel (pref .ISO 1817 Liquid F) above 90˚c سوخت دیزل
Sodium Hypochlorite solution (10% by mass) at 23˚c هیپوکلریت سدیم محلول
Hydrogen Peroxide at 23 ˚c پراکسید هیدروژن
 
Multi Point Data