A kind of alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth and manufacturing approach
Technical field
The invention belongs to fire resisting shutter cloth field, particularly a kind of alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth and manufacturing approach.
Background technology
Fire resisting shutter is a kind of back-fire relief facility that in building, is provided with for fire separation.Fire resisting shutter can stop fire spread after opening effectively, has the specific function of fire prevention, separated cigarette, inhibition fire spread, protection evacuating personnel, can effectively ensure the safety of user's life and property, is indispensable fire fighting device in the modern architecture.Along with people's improves constantly what the building fire protecting performance required, and China has revised GB50045-95 " Code for fire protection design of high rise buildings " (2005 editions), and fire prevention has proposed Compulsory Feature to building.This standard is put into effect fire resisting shutter has been stipulated higher performance standard; But existing fire resisting shutter also exists serious defective;, high temperature poor like heat-proof quality is powerful down descend big, weight is big, difficult installation, poor stability etc., far can not reach the requirement of aforementioned standard.Fire resisting shutter cloth is the main material that constitutes fire resisting shutter, and its fire protecting performance has determined the fire resistance property of fire resisting shutter.
Inorganic fabric fire resisting shutter is the direction of fire resisting shutter development now, and the material that is usually used in inorganic fireproof rolling curtain cloth has: asbestos cloth, glass cloth, thermal radiation resistant cloth, high silica cloth, carbon cloth.But these materials exist various performance deficiencies respectively, have limited their application as fire resisting shutter cloth.Like: asbestos cloth safe handling temperature lower (< 500 ℃), fire protecting performance is relatively poor, when high temperature, produces toxin, and harmful, China forbids; Glass cloth performance and asbestos cloth are more or less the same, therefore also less application on fire resisting shutter.Though thermal radiation resistant cloth fire protecting performance is excellent, high temperature is powerful poor, and price is higher; High silica cloth fire line can be excellent, but it is than great, and price is higher, and the anti-wear performance extreme difference, needs special equipment to process; The carbon cloth fire protecting performance is excellent, and the safe handling temperature can reach 1400 ℃, 1500 ℃ of maximum operation (service) temperatures, but it resists compole weak point when firing, and it is big to weave difficulty of processing, and price is high, also is not suitable for the curtain face base cloth as fire resisting shutter.Alumina silicate fibre have light weight, high temperature resistant, thermal conductivity is low, specific heat capacity is little, chemical stability is good and advantage such as anti-mechanical shock; It uses temperature higher (800~1000 ℃) safely, and maximum operation (service) temperature can reach 1260 ℃, but its processing characteristics is relatively poor; Generally be to form nonwoven fabric through needle point method; But the version of nonwoven fabric makes its brute force relatively poor, and the high temperature brute force is almost nil, can not satisfy the fire resisting shutter requirement powerful to curtain face base cloth.Melting deformation, cracking caved in when existing pure alumina silicate woven fabric burnt, and burning back strength loss is very big.
Therefore, in order better to guarantee the safety of people's lives and properties, the excellent fire resisting shutter cloth of development fire protecting performance has been very urgent.
Summary of the invention
Be to overcome the deficiency of existing fire resisting shutter order of the present invention; A kind of alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth and manufacturing approach is provided; Melting deformation, cracking caved in when this kind fire resisting shutter cloth had solved existing pure alumina silicate woven fabric burning, and burning back strength loss can not satisfy the problem of fire protection requirement very greatly.
It is raw material that alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth adopts alumina silicate yarn and nickel chromium stainless steel silk, forms fabric with the latitude dual structure.
According to the characteristics of fire resisting shutter cloth, the Gram Mass of said alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth is: 800~1200g/m
2Fabric total tightness degree>=115%.
According to the characteristics of fire resisting shutter cloth, said alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth body adopts filling-backed weave, and the table of this filling-backed weave, lining tissue adopt the satin weave of average float >=4, selvedge advantageous variant basket weave.
Alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth; Warp thread is alumina silicate/nickel chromium stainless steel silk and twists thread; Weft yarn is with alumina silicate yarn and two groups of yarns of nickel chromium stainless steel silk, and positive side shutes is the alumina silicate yarn, and the reverse side weft yarn is the nickel chromium stainless steel silk; The floating length of the latitude of front alumina silicate yarn should be covered the latitude floating-point of nickel chromium stainless steel silk, and the alumina silicate yarn is 2:1 with the arrangement ratio of nickel chromium stainless steel silk.
According to the characteristics of fire resisting shutter cloth, the alumina silicate fineness of yarn is: 120~300tex, the nickel chromium stainless steel filament diameter is: 10~50 μ m, the alumina silicate/nickel chromium stainless steel silk and the twist of twisting thread are: 5~10 sth. made by twisting/10cm.
The manufacturing approach of alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth comprises following operation:
(1) with alumina silicate yarn and nickel chromium stainless steel silk and sth. made by twisting; In order to guarantee wovenly to carry out smoothly; At alumina silicate yarn and nickel chromium stainless steel silk and when twisting with the fingers; The tension force of alumina silicate yarn makes nickel chromium stainless steel silk looping in the alumina silicate yam surface greater than the tension force of nickel chromium stainless steel silk, and the sth. made by twisting twist is 5~10 sth. made by twisting/10cm;
(2) alumina silicate/nickel chromium stainless steel silk after will and twisting with the fingers is through winder, warping, sizing with pass operation in order to weaving; Wherein the prescription of slurries is in the sizing operation: main slurry PVA is 80%; The auxiliary slurry converted starch is 20%, and bleeding agent AEO (JFC) is 0.5%; Selvedge penetrates number and from the body to the selvedge, goes into to be reduced to 1 by 2 and go in passing operation, with polyamide fibre yarn or spun polyester thread as the limit warp.
(3) with alumina silicate yarn, nickel chromium stainless steel silk respectively quilling in order to weaving;
(4) with ready warp thread and weft yarn, on the fly-shuttle loom that multiple box on both sides mechanism is arranged, weave, promptly get alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth.
The present invention has following beneficial effect:
1, fire resisting shutter cloth according to the invention is interweaved by nickel chromium stainless steel silk and warp thread below the fabric that the alumina silicate yarn constitutes with the latitude dual structure and forms network structure; Not only improved the ultimate strength of alumina silicate fabric; Also improved the fire resistance of alumina silicate fabric; Make its fire resistance period reach 180 min, refractory temperature surpasses pure alumina silicate fabric and has reached 1100 ℃.After the burning in this fabric because of having added the nickel chromium stainless steel silk; Its network structure is played a supporting role to softening alumina silicate; Make the alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth after the burning still have certain brute force; The existence of nickel chromium stainless steel silk simultaneously also makes the heat conductivility of this fabric strengthen, and has eliminated pure alumina silicate fabric melts destruction because of heat-sinking capability official post heat accumulation defective.
2, its fabric total tightness degree >=115% of fire resisting shutter cloth according to the invention makes this fabric fire protecting performance reach requirement, thereby does not need to apply in addition fire resistant coating again.
3, fire resisting shutter cloth according to the invention adopts filling-backed weave; With the alumina silicate yarn is the table latitude, and the nickel chromium stainless steel silk is a back weft, make like this alumina silicate yarn and nickel chromium stainless steel silk without and twist with the fingers operation and just can inweave fabric; And not influencing fabric can close property; Guarantee fabric compactness and fire protecting performance, thereby reduced the difficulty of processing of alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth, practiced thrift processing cost.
4, fire resisting shutter cloth manufacturing approach according to the invention adopts alumina silicate yarn and nickel chromium stainless steel silk and twists with the fingers and make warp thread; The alumina silicate yarn adopts than hightension; The nickel chromium stainless steel silk is used than small tension receiving coil; Make nickel chromium stainless steel silk looping in the alumina silicate yam surface, improved the ABRASION RESISTANCE of alumina silicate yarn as warp thread, also evaded simultaneously nickel chromium stainless steel silk elongation minimum and cause weave difficulty.
5, the fire resisting shutter cloth made of the method for the invention adopts good polyamide fibre yarn of anti-wear performance or spun polyester thread as selvedge, has overcome, weaving process limit poor because of alumina silicate yarn anti-wear performance and has made and weave the difficult problem that can't carry out through being prone to broken end.
6, the fire resisting shutter cloth of the method for the invention manufacturing adopts plain cloth limit, variation side; And the limit penetrates the method that number reduces gradually through employing; Selvedge is difficult for the urgent shortcoming that Density can not be improved when effectively having overcome weaving alumina silicate cloth; Guarantee the tightness of alumina silicate/nickel chromium stainless steel silk fabrics, thereby guaranteed the fire protecting performance of this fabric.
7, fire resisting shutter cloth manufacturing approach according to the invention adopts PVA, converted starch to add bleeding agent the alumina silicate yarn is carried out starching, has improved alumina silicate and has worn no resistance, weaves the shortcoming that is prone to broken end, has improved the weavability of alumina silicate yarn.
Description of drawings
Fig. 1 is alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth weft backed cloth broadwise generalized section, and among the figure, 1-table latitude alumina silicate yarn, 2-back weft nickel chromium stainless steel silk, 3-warp thread alumina silicate/pinch the straight-chromiun stainless steel silk are also twisted thread;
Fig. 2 is that 4-textura epidermoidea riser, 5-nexine organize riser, 6-textura epidermoidea and nexine to organize the latitude floating-point among alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth weft backed cloth organization chart figure;
Fig. 3 is the looming draft (comprising organization chart, drafting plan and line domain) of alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth;
Fig. 4 is the Technical Specification Sheet of alumina silicate/nickel chromium stainless steel silk fire resisting shutter cloth.
The specific embodiment
Below in conjunction with accompanying drawing, alumina silicate according to the invention/nickel chromium stainless steel silk fire resisting shutter cloth making method is further specified through embodiment.
In the present embodiment, adopting eight piece five, to fly filling satin be table organization, and the lining tissue adopts eight pieces of changes then through the face satin, and table latitude and back weft inweave fabric by the arrangement ratio of 2 tables 1 li.Its broadwise cross-section structure is as shown in Figure 1.This fabric warp thread is with alumina silicate/nickel chromium stainless steel silk and twist thread, and the table latitude uses and is the alumina silicate yarn, and back weft is used the nickel chromium stainless steel silk, and its fabric organization chart is as shown in Figure 2, and looming draft is as shown in Figure 3.
Present embodiment adopts following technological process:
(1) preparatory process
The warp thread preparatory process is with alumina silicate yarn and nickel chromium stainless steel silk and twists with the fingers, carries out winder, warping, sizing then, passes;
And twist with the fingers: at alumina silicate yarn and nickel chromium stainless steel silk and when twisting with the fingers, the tension force of alumina silicate yarn is for twining Wire guide roller two circles, and the tension force of nickel chromium stainless steel silk is for twining Wire guide roller one circle, and the sth. made by twisting twist is 7 sth. made by twisting/10cm;
Sizing: the prescription of slurries is in the sizing operation: main slurry PVA is 80%, and the auxiliary slurry converted starch is 20%, and bleeding agent AEO (JFC) is 0.5%;
Pass: the body warp thread of 1. the gaiting rule of gaiting is as shown in Figure 2, and the limit is through by 9,9,9,9,10,10,10,10, and 9,10,10,9 rule penetrates heald frame;
2. denting body warp thread 2 is gone into/tooth; The limit warp is pressed per tooth 2,2, and 2,2,2,1,1 penetrates.
The preparatory process of weft yarn is alumina silicate yarn, a nickel chromium stainless steel silk quilling respectively.
(2) weaving process
Present embodiment is weaved on GA615A3-(2 * 4) 56 〞 fly-shuttle looms, and fabric specification and related process are as shown in Figure 4.