N8 Nickel Chromium Alloy Wire/ Flat Wire 0.15mm*1.5mm for Industry
Sealing Machine
1. General Description
Nichrome 80 (Nickel 80%, Chromium 20%) resistance alloy is an ideal electrical
heating material that can be used up to 2150oF or 1200oC. It has
suitable hot strength and extremely high electrical resistance. Nichrome 80 alloy (Strip and Wire) produces a strong chromium oxide layer upon heating that provides
outstanding oxidation resistance at the elevated temperatures. It
has high melting temperature about 1350oC. Nichrome wire offers a
special resistance range of 5500 ohm/m.
We offer fine gauge wire for a broad range of applications
including low temperature heating in the electronic equipments such
as variable frequency controller for example potentiometers,
pressure transducers, detonators, ceramic resistance, wire wound
resistance, lead wire and also strings for musical instruments.
Nichrome 80 resistance heating alloy is suitable for reconstructing
your atomizer and is particularly excellent for sub-ohm coils. It
has smaller resistance per unit length than Kanthal hence it heats
up more quickly and is recommended over Kanthal for various
applications.
2. Sealing Machine
A vertical form fill sealing machine is a type of automated
assembly-line product packaging system, commonly used in the
packaging industry for food, and a wide variety of other products.
Walter Zwoyer, the inventor of the technology, patented his idea
for the VFFS machine in 1936 while working with the Henry Heide
Candy Company. The machine constructs plastic bags out of a flat
roll of film, while simultaneously filling the bags with product
and sealing the filled bags. Both solids and liquids can be bagged
using this packaging system.
The typical machine is loaded with a continuous flat roll of
plastic film, which has had labeling and artwork applied to the
exterior or interior of the film. Note that while plastic is the
most commonly used packaging material in the food industry, the
technology can also be used to form continuous metalized foil/film,
paper, and fabric product containers by changing the edge
sealing/seaming methods. For some products the film may first be
fed through a sterilizing chemical bath and dryer prior to use in
the packaging system.
For a vertical form-fill-seal the film approaches the back of a
long hollow conical tube, which is called the forming tube. When
the center of the plastic is near the tube, the outer edges of the
film form flaps that wrap around the conical forming tube. The film
is pulled downward around the outside of the tube and a vertical
heat-sealing bar clamps onto the edges of the film to create the
"fin Seal", bonding the film by melting the seam edges together.
To start the bagging process, a horizontal sealing bar creates the
"Bottom Seal" by clamping across the bottom edge of the tube,
bonding the film together, and cutting off any film below. This
sealing bar can be on a fixed height, which is called an
intermittent sealing process. Faster systems include a sealing bar
that moves down with the bag while sealing. This is called a
continuous process. The product is either pre-measured by a
multi-head weighing system or the sealed tube end is then lowered
onto a precision weighing table and the product to be bagged is
dispensed through the long conical tube in the center of the bag.
When the gross weight of the product-filled bag is reached, filling
stops, and the horizontal sealing bar seals the top of the bag,
simultaneously forming the bottom of the next bag above. This bag
is then cut off from the tube and is now a sealed package, ready to
advance onward into the product boxing and shipping processes.
Wire AWG | Wire Dia. | Ohms / Foot | Current at 400°F | Current at 600°F | Current at 800°F | Current at 1000°F | Current at 1200°F | Current at 1400°F | Current at 1600°F |
30 | 0.010 | 6.50 | 0.875 A | 1.16 A | 1.43 A | 1.74 A | 2.06 A | 2.43 A | 2.81 A |
32 | 0.008 | 10.55 | 0.650 A | 0.860 A | 1.08 A | 1.32 A | 1.56 A | 1.82 A | 2.09 A |
34 | 0.0063 | 16.66 | 0.493 A | 0.658 A | 0.820 A | 0.978 A | 1.16 A | 1.34 A | 1.54 A |
36 | 0.005 | 25.12 | 0.382 A | 0.506 A | 0.623 A | 0.732 A | 0.872 A | 0.998 A | 1.13 A |
40 | 0.0031 | 66.29 | 0.230 A | 0.300 A | 0.360 A | 0.410 A | 0.491 A | 0.550 A | 0.610 A |
48 | 0.00124 | 454.0 | n/a | n/a | n/a | n/a | n/a | n/a | n/a |