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Technics - Quality Test
I、 Standard Draft
Fiberglas Engineering Grids manufactured by our company are
widely used in many fields of vital and lasting importance:
water convercancy, transportation, construction, etc., therefore
there are regulations in the technology and construction. In
order to guarantee the product quality and standardize the production
and delivery, it is necessary to establish enterprise standard
for record according to industry regulations. While making this
standards, we refer to JC/T277-1994《Non-alkaline Fiberglas Twisted
Silk》 and JC/T561-1994《Fiberglas Grid》etc. and take application
of products and production practice into consideration.
II、 Standard Content
Fiberglas engineering grid is made of fiberglas, processed
by warp-knitting machine and bound with terylene stretchy thread.
This product is the application of fiberglas grid on engineering,
whose specific requirements and indexes are definited in according
with products features, testing result and product practice.
1、 The products are classified into various series by their
longitudinal tensile intension and into different specifications
by gridding dimension. Length error is in accordance with No.43
document of National Technical Supervision Bureau and the negtive
width error is less than 1%.
2、 Shortage of abb and broken warp will affect the intension
of products. So there are strict regulations over them. But
other errors make little difference.
3、 The products are widely used in irrigation works, communication,
construction, etc, which have strict requirements on the tensile
intension. So we make some indexes, including tensile intension
and specific elongation.
4、 To control the quality, test the whole procedure while not
changing raw materials and technics.
Macromolecule numeral sprayed grid
I、 General introduction
As new products of our company, macromolecule numeral sprayed
grids are made of terylene of high intension, woven by axial
direction tricot machine, then treated through macromolecule
materials. They are of high intension, low specific elongation,
well stability, windbreaking performance and long life, etc.,
which have been widely used in large sprayed advertisements.
Since there is no national and industrial standards, we make
our own standards as basis for production and delivery.
II、 Main contents of the standard
Macromolecule numeral sprayed grid is new product following
the soft light cloth. And there are recorded standards for soft
light cloth. This standards have referred to Q/HLD02-2000 Soft
Light Cloth and combined their features.
1、 The ultimate width error is the same as that stipulated in
2、 According to clients' demands, make weight per square meter
as one of quality index. After experiment, it is defined that
250-15+30g/m2 for SP9X11/10X5、SPX12/10X5 and 300-15+30g/m2 for
3、 The length error is in accordance with National Measure
4、 Because the surface quality is important to the effect,
there are strict and detailed stipulations.
5、 Physical performance: since macromolecule numeral sprayed
grid is used for large outdoor advertisements, it is necessary
to resist strong wind, rain and sunshine. So we make some indexes,
including stretch load, coldtolerant performance, aging, etc.
The specific indexes are to be decided in accordance with usage
and clients' demands and to be tested