China Metallized Capacitor Film

Description:
Capacitor film, metallized film , metallized polypropylene film , metallized polypropylene film for capacitor , capacitor grade metallized film , metallized film for capacitor use, MPP film , metallized polyester film , metallized capacitor film , metallised capacitor films.
Coating a thin Aluminum layer on the surface of plastic film, will get high self-healing Aluminum metallized film for capacitor use.
The prominent feature of metallized film is its self healing ability. That is, when somewhere is breakdown, short-circuit current can make the film around the breakdown area melting and evaporation to recover its insulation property. Thus significantly reduce the impact on the breakdown strength by conductive defects and weakness in paper or film, thereby improving the working field.
Generally the thickness of the metal layer is 5nm-50nm, but on the international it can be 1nm-100nm. In terms of heat resistance, 1nm-100nm is preferred, while consideration of electric properties, 5nm-50nm is more preferred.
Under the same evaporation conditions, the larger the coating thicknessδ, the smaller square resistance (Ω/) , the smaller the resistance R, the greater the load current, while the worse self healing properties.
Features:
The metal plate of anti-explosion pattern metallized film is divided into a number of small units, these units are connected with fuses. When the non-self-healing breakdown occurs, the fuse is burn-out, the breakdown area is cut off and isolated. Since the capacitor unit consists of many small units, thus the isolated small unit has little influence on the capacitance of the capacitors.
Al metallized film has a better over-current performance.
Al metallized film has a better moisture resistance.

Types of metallized Layer:

Roll films are packed in vacuum plastic bagBags are marked with lables of typesThe bags are packed in carton casesThe cartons are wrapped in wooden cases or reinforced carton

Storge
metallized film should be stored in its original package until its use with temperature 5 ~35ºCand humidity less than 85%RH.
metallized layer is easily oxidized when exposure to moisture. Therefore, the film should be used as soon as possible when opened.
The recommended temperature is 15 -25ºCwith humidity less than 60%RH after the package is open
With original sealed package, and stored in the above mentioned conditions, the storage time can be as following:
Al metalized Film: 12 months from the delivered date
Al/Zn Alloy metallized Film: As Zn is relatively unstable, preservation period depends on the resistance of the film:
Less than 10 Ohms: 6 months (from delivery date)
10 Ohms to 15 Ohms: 3 months (from delivery date)
15 Ohms: 1months (from delivery date)
For more information,you can contact and view our website:
www.capacitorfilm.com

FAQ:
Ask: Which type of the metallized capacitor film your factory producing ?
Reply: metallized polypropylene & polyester film for capacitor use.

Ask: What are the thickness you are producing ?
Reply: metallized polypropylene film from 4um to12um.
metallized polyester film from 2.7um-16um

Ask: What are the metallized capacitor film slit widths you are producing ?
Reply: slit widths 4.5mm<= width<10mm recommend outer diameter 140mm<=D<=185mm
slit widths 10mm<= width<25mm recommend outer diameter 150mm<=D<=185mm
slit widths 25mm<= width<50mm recommend outer diameter 150mm<=D<=240mm
slit widths 50mm<= width recommend outer diameter 150mm<=D<=350mm

Ask: If your factory could produce the wave cut metallized film ?
Reply: Yes, we could be according to your requirement to wave cut.

Ask: For the metallized capacitor film are very easy oxidation, how do you protect the film and transport them safty to our factory ?
Reply: For our packing is as follows:
1.Roll films are packed in vacuum plastic bag and heat-sealed with desiccants.
2.Bags are marked with labels of types.
3.The bags are packed in carton cases.
4. The cartons are wrapped in wooden cases or reinforced carton.

Ask: what is the quantity for one 20ft container loading?
Reply: usually 6-7tons. (details according to your specification)

Ask: What is the delivery time ?
Reply: 10-15days after you placing the order. (details according to your quantity.)
If need to make the new mould, It will need 15-20days.

Ask: If you could offer samples for testing ?
Reply: Yes, if you are the capacitor factory, please tell us your company name, then we could offer you free samples for testing.