MIT耐折強度試驗步驟及生產(chǎn)廠家
一﹑用途:
l本機測試鋁箔紙、紙及紙板之耐折強度.
二﹑原理:
l試法是將試樣兩端固定在上下夾具,上夾具施於所須之荷重,使試樣承受一定張力,下夾具則在試樣垂直狀態(tài)下,向左右兩邊往復(fù)彎折之耐折強度.
l本儀器之設(shè)計符合TAPPI-T423PM,ASTM-D2176,JIS-P8115標準。
三、準備試樣:
1.試樣位置之確定: 從同批物料的分散位置選取試樣.
2.在要進行測試的材料上按縱向和橫向截取試樣(裁取無折痕、庇點位置),試樣寬15±0.1mm,長度不小於140m尺寸.
3.試樣數(shù)目: 同種材料需測試樣縱、橫向至少10片以上.
4.試樣之標準狀態(tài): 試驗前靜置於溫度23℃±2℃,相對溫度60±5%之狀態(tài)中24小時以上.
四、操作步驟:
1.調(diào)整機臺水平腳釘(圖1-7).
2.夾持試樣(如圖3所示)
2.1依試驗規(guī)定調(diào)節(jié)施力桿上(圖1-1)的指標(圖1-2)指在刻度尺(圖1-3)所需之位置.
2.2鬆開上夾具的固定鈕,裝上試樣並固定.
2.3使下夾具成垂直狀態(tài).
2.4鬆開下夾具上的固定鈕,將試樣穿過下夾具並固定.
MIT folding strength test procedures and manufacturers
A, use:
L the machine test aluminum foil paper, paper and cardboard the folding strength.
Second, principle:
L test is designed in both ends fixed up and down jig and fixture applied the required to load, make the sample under a certain tension, the next fixture is in sample vertical condition, to the left and right sides reciprocating bend of the folding strength.
L the instrument design conforms to the TAPPI - T423PM, ASTM - D2176, JIS - P8115 standard.
Three, preparing sample:
1. The sample position determine: from the same material dispersion position selecting sample.
2. To test the material according to the longitudinal and transverse intercepted sample (cutting take no crease, accompanied point position), sample width 15 + / - 0.1 mm, the length is less than 140 m size.
3. Sample number: same material must test sample of the longitudinal and transverse at least 10 piece above.
4. The sample standard state: before the test static in 23 ℃ temperature ± 2 ℃, relative humidity of 60-5% of the state of more than 24 hours.
Four, operation steps:
1. Adjust the level shackles (figure 1-7).
2. Holding sample (as shown in figure 3 shows)
In accordance with the provisions of 2.1 test control force application bar (FIG. 1-1) index (figure 1-2) refers to scale (FIG. 1-3) required position.
2.2 loosen the fixture fixed button, mount sample and fixed.
2.3 the jig into vertical state.
Under 2.4 loosen fixture on the fixed link, it will sample through the next fixture and fixed.
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