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XPS挤塑板的焚烧特性分析!
作者:admin 来源:本站 发布时间:2018-12-13 13:34:01 浏览次数:155
随着我国修建节能强制措施的逐步推进,修建外墙保温技术在修建中被大量选用,但其应用的重要条件是系统的防火安全性,即外墙保温资料的防火安全性。因而,外墙保温资料的焚烧特性成为国内外学者一致关怀的问题。笔者进行了XPS挤塑板的燃点温度测点试验和辐射引燃试验,以研讨XPS挤塑板的焚烧特性,其间重点研讨线性热流下挤塑板的辐射引燃特性。
With the gradual advancement of compulsory energy-saving measures in China, the construction of exterior wall insulation technology has been widely used in construction, but the important condition for its application is the fire safety of the system, that is, the fire safety of exterior wall insulation materials. Therefore, the burning characteristics of external wall thermal insulation materials have become a common concern of scholars at home and abroad. The burning point temperature test and radiation ignition test of XPS extruded panel were carried out to study the burning characteristics of XPS extruded panel, and the radiation ignition characteristics of XPS extruded panel under linear heat flow were emphatically discussed.
1 XPS挤塑板燃点温度测点试验
Test of Ignition Temperature of 1 XPS Extruded Plate
1.1 试验设计
1.1 Test Design
XPS保温资料点着温度的测定选用DW—02型点着温度测定仪。试验设备包含DW—02型点着温度测定仪、秒表、焚烧器、不锈钢镊子等。
Type DW-02 ignition temperature tester is used to determine the ignition temperature of XPS thermal insulation data. The test equipment includes DW-02 ignition temperature measuring instrument, stopwatch, incinerator, stainless steel tweezers, etc.
1.2 试验结果与分析
1.2 Test results and analysis
将待测保温资料磨成细粉颗粒,并用天平称重,将固定质量的试样装入容器,3个容器为1组,如图1所示。
The heat preservation data to be measured are ground into fine powder particles, weighed by a balance, and the fixed mass samples are loaded into containers. The three containers are grouped into one group, as shown in Figure 1.

将1组容器逐个放入铜锭炉中,盖上盖子(盖子预先放在铜锭炉上加热),并启动秒表。将焚烧火焰置于盖的喷嘴上方2mm处晃动。火焰长度10~15mm。如果在开始的5min之内,喷嘴上没有(或有)接连5s的火焰,则每次将炉温升高(或降低)10℃,用新的试样重新试验,直到测得喷嘴上呈现接连5s以上火焰时的最低温度停止,并记载此温度。每个预定的温度做3个试样,若有2个没有5s以上的火焰,则将炉温升高10℃,再做3个试样,如有2个呈现5s以上火焰的最低温度,即为资料的点着温度。

Put a group of containers into the copper ingot furnace one by one, cover the lid (the lid is pre-heated on the copper ingot furnace), and start the stopwatch. Put the burning flame over the nozzle of the cover and shake it at 2 mm. The flame length ranges from 10 mm to 15 mm. If there is no flame on the nozzle for 5 seconds in the first 5 minutes, the furnace temperature will be increased (or decreased) by 10 C each time, and the new sample will be re-tested until the lowest temperature stopped when the flame on the nozzle appears more than 5 seconds in succession, and the temperature will be recorded. If there are two flames with no more than 5s, the furnace temperature will be increased by 10 C, and then three samples will be made. If there are two minimum temperatures with more than 5S flame, the ignition temperature of the data will be the ignition temperature.
试验发现,当固定容器中保温资料试样质量为1.0、0.9、0.8g时,在试样加热过程中,保温资料受热发作满溢现象,试验失败。
It is found that when the mass of insulation material sample in fixed container is 1.0, 0.9 and 0.8g, during the sample heating process, the thermal insulation material overflows and the test fails.
当固定容器中保温资料试样质量为0.7g,炉温稳定在355℃时,3个试样中有1个试样呈现了继续5s的接连火焰;当炉温稳定在360℃时,3个试样中有2个试样呈现了继续5s的接连火焰;当炉温稳定在365℃时,3个试样均呈现了继续5s的接连火焰。因而,保温资料试样的点着温度为355℃。
When the mass of heat preservation material sample in fixed container is 0.7G and the furnace temperature is stable at 355 C, one of the three samples presents continuous flame for 5 seconds; when the furnace temperature is stable at 360 C, two of the three samples present continuous flame for 5 seconds; when the furnace temperature is stable at 365 C, all the three samples present continuous flame for 5 seconds. Therefore, the ignition temperature of the thermal insulation material sample is 355 C.
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