Caster TPR plastic injection molding material testing guide before
processing According to the characteristics of the material and the
feeding situation, the appearance and process performance of the
material should generally
be tested before molding. The supplied materials often contain
different degrees of moisture,
fluxes and other volatile low-molecular substances, especially the
water content of TPR, which
has a tendency to absorb moisture, always exceeds the allowable
limit for processing. Therefore,
it must be dried and the moisture content measured before
processing. At high temperature, the
moisture content of the caster TPR is required to be below 5%, or
even 2%~3%, so the vacuum
drying oven is commonly used to dry at 75℃~90℃ for 2 hours. The
dried material must be properly
sealed and stored to prevent the material from reabsorbing moisture
from the air and losing its drying
effect. For this reason, the use of a drying chamber hopper can
continuously provide dry hot material
for the injection molding machine, which is beneficial to
simplifying operations, maintaining
cleanliness, improving quality, Increasing the injection rate is
beneficial. The charging amount of the
drying hopper is generally 2.5 times the hourly amount of the
injection molding machine. SBC
based TPEs outperform most other caster TPR materials in color. As
a result, they require less
color masterbatch to achieve a specific color effect, and the color
produced is purer than other
caster TPRs. Generally speaking, the viscosity of the color
masterbatch should be lower than that
of the caster TPR because the melt index of the caster TPR is
higher than that of the color
masterbatch, which will facilitate the dispersion process and make
the color distribution more
uniform. For SBS-based TPEs, polystyrene-based vehicles are
recommended. Polypropylene (PP)
vehicle is recommended for harder SEBS based caster TPRs. For
softer SEBS based casters TPR,
low density polyethylene or ethylene vinyl acetate copolymers are
available. For softer varieties, PP
vehicle is not recommended as the hardness of the composite will be
affected. For some overmolding
applications, the use of polyethylene (PE) vehicles may adversely
affect adhesion to the substrate.
The cleaning barrel generally adopts the heating barrel cleaning
method. The cleaning material
generally uses plastic raw materials (or plastic recycling
materials). For caster TPR material, the
transition cleaning material can be replaced by the new material
processed.
Locking Swivel Casters
| model | KT-LGD-75SB |
| Wheel material | Nylon6 |
| Load Capacity | 670KG |
| Wheel Diameter | 76mm |
| Tread Width | 55mm |
| Load Height | 108MM |
Locking Swivel Casters Describe
Locking Swivel Casters Size
Locking Swivel Casters Material
| Name | Material | Treatment |
| 1 | Caster Seat | Cold-rolled carbon steel | Black Coated/Zn Galvanized |
| 2 | Body | Aluminum alloy | Ivory/Powder Coated |
| 3 | Ball | Bearing Steel | Ni-Cr |
| 4 | Brake | Steel 45 | Zn Galvanized |
| 5 | Pin | Steel 10 | Zn Galvanized |
| 6 | Wheel | PA6 | Black |
Locking Swivel Casters Scope of application
Application.
Communication equipment, semiconductor manufacturing equipment,
experimental equipment,
medical equipment, printing machines, all kinds of Press, all kinds
of special machinery, all kinds
of variable production equipment, dust-free room equipment,
aluminum frame, equipment, etc.
About us.
KTC (Bejing Korea Technology Caster Co., Ltd.) was founded in 2007.
KTC is a modern
company specialzingin the production of multi function &high
quality CASTER and
KT FOOT based on best design and design technology.
KTC.
The company is headquartered in Niulanshan Industrial Zone,Shunyi
District, Beijing. KTC
adopts international advanced production testing equipments,
professional intelligent
production management system and professional design flow. Now the
company produces
multi function & high quality production, such as KT CASTER and KT
FOOT, among which
high quality of height adjusting CASTER,shockproof type CASTER,
high quality of height
adjusting CASTER, shockproof type CASTER,high load CASTER and level
adjusting FOOT
are widely used in the world's advanced automation equipment and
semiconductor e
quipment industry.
In order to manufacture the world's highest level of products,KTC
use the best processing
technology and equipment. And KTC continuously launches world top
level of new products.
KTC's s also has set up a branch in Korea, so it is favored by
theusers of various fields around
the world.
