If you are the casting of very complex material filled
with glass, you'd think with hard chrome will suffice, since it is a classic,
reliably protecting your mold to both corrosion and abrasion. However, hard
chrome, with all its benefits do not tend to plate uniformly detailed areas
such as ribs and bosses. This is a trick called Nihard, a coating of
nickel-cobalt alloy bullets developed to overcome this limitation. To our
knowledge, no other similar product.
Nickel-cobalt can be an economical alternative to hard
chrome. Hard chrome requires the construction of an anode according to coat the
pan. The details in the mold, the more time it takes to build the anode and the
process becomes more expensive. Nihard requires no anode, and because of its
chemical properties, records much more uniform. Cobalt gives a good wear
resistance, but its hardness is 62 RC, 10 points lower than hard chrome. Is it
worth paying extra for protection wear than hard chrome? You must consider the
equipment being driven in shape, what percentage of glass? Is it a bigger
problem of corrosion wear?
Hard chrome plated and has two solutions Nihard very good
for longevity, but for very high wear conditions, offers an even more recent
chrome diamond called exceptional protection. Developed by bullets, he has a
score above the 85th RC is a matrix composites of chromium containing a
dispersion of nanosized diamond particles spherical. Since diamonds are
superior in hardness, this coating offers protection beyond the norm. It
exceeds the coating of titanium nitride, although both have the same notes
Rockwell, because he will not compromise the dimensional integrity of coated
tools. Nihard used on about 130 F. titanium nitride (TiN) requires application
temperatures of 800 F or more.
Diamond-chrome can be quenched and tempered plate,
heat-treated, or hiilikarkaisuteräs and other basic materials such as aluminum,
beryllium copper, brass and stainless steel. APPLICATIONS are core, cavity,
slides, ejection sleeves, rotating and turning the hearts. Its anti-irritant
properties are particularly advantageous for moving cores and slides.
Diamond-chrome is also peeled off and has no negative
influence on the base material, which saves time and money when maintenance is
needed. Tin is peeled off so good, but it may take several days to remove a
Polish solution or peroxide. Diamond-chrome can be removed in minutes by using
reverse electrolysis in a caustic solution. In addition, diamond-chrome
deposited on a controlled thickness of 20 millionths of an inch to 0.001 inch
TiN generally used only in thin deposits of a few millionths of an inch.
Diamond-chrome can coat complex details, while the tin has a very limited
coverage of complex details. While TiN is highly lubricious, with a coefficient
of friction of 0.4 (against steel), diamond-chrome has a COF of 0.15, almost
three times more lubricant.
They offer a combination of an excellent release
properties and high resistance to abrasion, heat and corrosion, bales of newly
appointed Niborio coating specialties. And 'nickel-phosphorous-containing
particles of boron nitride in the matrix. This is a very low coefficient of
friction (0.05 against steel) and the hardness of 54 RC, which can be increased
to 67 RC after heat treatment, a unique feature. Nickel-boron nitride can be
applied to any substrate only 185 F, and can be easily removed without
compromising the basic material. Although more expensive than nickel-PTFE
coating, Niborio run up to 1250 F, which is a multiple of 500 F, the upper
limit of all the coatings based on PTFE.
It 'just Niborio catalytic process does not require the
anode, which saves time and money. Also, do not Niborio compromising the
thermal conductivity of the mold. Applications are open through the heart of the
closure, with shorter cycle times are required.
Where high lubricity to the depth of rib, nuclei project
zero, textured surfaces and "sticky" polymers, a layer of PTFE
Nicklon bullets nickel compounds release will greatly improve a bit and improve
the flow of resin to a 4% 8% for shorter cycle times. Your COF is 0.10 against
steel.
It should be noted that the application of pure PTFE mold
adds high lubricity, but only a very short-term benefit. PTFE itself is not the
hardness, so that will not last. But the standard deviation of 25% by volume
PTFE co-deposit with nickel results of 45 RC hardness greater wear.
