(4)
indicating finger (d, fig. 2). the forepart of this finger touches the
specimen when the rack is adjusted. by means of this finger the thickness of
the specimen is compensated for in the throw of the gas nozzle.
4 指示指d,圖2。調整齒條時,供應紡織品阻燃可燃性測試儀,手指的前部接觸試樣。通過這個手指,試樣的厚度在氣體噴嘴的行程中得到補償。
4 指示指d,圖2。調整齒條時,手指的前部接觸試樣。通過這個手指,試樣的厚度在氣體噴嘴的行程中得到補償。
(13)
flow meter (l, fig. 2). a flow meter is used to bring the fuel supply to
test level by means of the control valve. the flow meter cists of a u-shaped
glass tube cut into the gas line in a manner to register the gas pressure
delivered to the microburner. attached to the case wall behind the flow meter
is a movable metal plate with two parallel horizontal lines properly spaced for
the desired flame length. when the pressure is off,紡織品可燃性測試儀, the plate is so regulated
that the liquid level in both sides of the u-shaped tube meets the lower line.
when the test is made the pressure is so adjusted that the higher liquid level
in the u-shaped tube meets the upper line.
13 流量計l,圖2。流量計通過控制閥使燃油供應達到試驗水平。流量計由一個u形玻璃管組成,該玻璃管切割成氣體管線,以記錄輸送至微燃燒器的氣體壓力。連接到流量計后面的箱壁上的是一個可移動的金屬板,其上有兩條平行的水平線,這些線的間距適合所需的火焰長度。當壓力關閉時,調節板,使u形管兩側的液位與下線相遇。進行試驗時,應調整壓力,使u形管中較高的液位與上一條線相交。
2利用其內部循環掃描的工作方式,可燃性,對整個燃燒過程進行--控制測量。
3、分辨率:0.01s
7、試樣架:使其傾斜為45°角,
10、標志線:白色棉絲光縫紉線11.7tex×3,符合gb/t6836的要求。
12、火焰高度:16mm
14、刷毛裝置:符合gb/t 14644-2014 5.2條款要求
15、箱內溫度顯示:室溫~99℃
16、燃燒氣體:-化學純。