擺桿阻尼試驗(yàn)機(jī)是檢測儀器，用于色漆，清漆及有關(guān)產(chǎn)品的取樣試驗(yàn)，以測定色漆清漆及有關(guān)產(chǎn)品的皮膜硬度。擺桿阻尼試驗(yàn)機(jī)根據(jù) 標(biāo)準(zhǔn)ZBN72020-86和參照標(biāo)準(zhǔn)ISO1522-1973設(shè)計(jì)制造的。
The pendulum damping tester is a testing instrument for sampling tests of paints, varnishes, and related products to determine the film hardness of paints and varnishes. The pendulum damping test machine is designed and manufactured according to the standard ZBN72020-86 and the international standard ISO1522-1973.
擺桿阻尼試驗(yàn)機(jī)工作原理：
用擺桿在漆膜上擺幅衰減的阻尼時(shí)間以秒計(jì)來表示漆膜硬度是根據(jù)接觸漆膜表面的擺桿以一定周期擺時(shí)，如表面越軟的話則擺幅衰減越快，反之 越慢的原理。值得注意的是，用不同結(jié)構(gòu)、質(zhì)量、尺寸，周期的科尼格（Konig）和鉑鏟茲（Persoz）兩種擺桿所作的試驗(yàn)結(jié)果之間沒有換算關(guān)系，這是因?yàn)閿[桿與涂層間的互相作用還取決于涂層具有的復(fù)雜的彈性和粘度等原因。所以產(chǎn)品標(biāo)準(zhǔn)中測定某種漆膜的阻尼時(shí)間，只規(guī)定使用一種擺桿。
Working principle of pendulum damping test machine:
The damping time of the pendulum swing on the paint film is expressed in seconds. The hardness of the paint film is based on the pendulum that is in contact with the surface of the paint film at a certain period. * The slower the principle. It is worth noting that there is no conversion between the test results of Konig and Persoz pendulums with different structures, masses, sizes and cycles. This is because the pendulums are coated with The interaction between them also depends on the complex elasticity and viscosity of the coating. Therefore, the damping time of a certain paint film is determined in the product standard, and only one type of pendulum is required.
擺桿阻尼試驗(yàn)機(jī)技術(shù)指標(biāo)：
★ 科尼格擺（Konig）
1、 擺的總質(zhì)量：200±0.2g
2、 擺的擺動周期：1.4±0.02S
3、 擺的玻璃值：250±10S178±7次（在拋光玻璃上，擺桿擺幅從6°位移到3°的阻尼時(shí)間次數(shù)）
★ 鉑撒茲擺（Persoz）
1、 擺的總質(zhì)量：500±0.1g
2、 擺的擺動周期：1±0.001S
3、 擺的玻璃值：≥420S 420次（在拋光玻璃上，擺桿擺幅從12°位移到4°的阻尼時(shí)間次數(shù)）
★外形尺寸：430X330X650mm
★重量：30kg
Technical index of pendulum damping test machine:
★ Konig
1. Total mass of pendulum: 200 ± 0.2g
2. Pendulum swing period: 1.4 ± 0.02S
3. The value of the pendulum glass: 250 ± 10S178 ± 7 times (on polished glass, the number of damping time that the pendulum swings from 6 ° to 3 °)
★ Persoz
1. Total mass of pendulum: 500 ± 0.1g
2. Pendulum swing period: 1 ± 0.001S
3. The value of the pendulum glass: 420S 420 times (on polished glass, the number of damping times for the pendulum swing from 12 ° to 4 °)
★ Dimensions: 430X330X650mm
★ Weight: 30kg
擺桿阻尼試驗(yàn)機(jī)使用方法：
★ 將儀器座置于無振動的工作臺上，裝好底角螺釘及墊片。
★ 接好計(jì)數(shù)裝置的電源線。用連接線連接光電管與計(jì)數(shù)裝置。
★ 將兩個(gè)控制手柄裝在相應(yīng)的位置上。
★ 將擺桿置于工作臺定位銷上。
★將儀器座水平校正:：調(diào)整底腳螺釘，觀察水平泡，校正好水平。
★擺桿的零位校正：在儀器座水平校正后，將擺桿放置工作臺上觀察其擺尖是否在刻度的零位，若不在零位則移動刻度盤，使其零位與擺尖對正，然后緊固好刻度盤緊固螺釘。
★位置調(diào)整：將光電管調(diào)整3°或4°的位置上。
How to use the swing bar damping test machine:
★ Place the instrument base on a vibration-free workbench, and install the bottom corner screws and washers.
★ Connect the power cord of the counting device. Connect the photocell and the counting device with a connection cable.
★ Install the two control handles at the corresponding positions.
★ Place the swing lever on the positioning pin of the workbench.
★ Level the instrument base: Adjust the foot screw, observe the horizontal bubble, and correct the level.
★ Zero calibration of the pendulum: After the instrument base is calibrated horizontally, place the pendulum on the workbench and observe whether its pendulum tip is at the zero position of the scale. And then tighten the dial fastening screws.
★ Position adjustment: Adjust the photocell to 3 ° or 4 ° position.
擺桿阻尼試驗(yàn)機(jī)操作規(guī)程：
★ 接通計(jì)數(shù)裝置電源，打開電源開關(guān)，將K/P擺轉(zhuǎn)換鍵置于相應(yīng)位置，當(dāng)實(shí)驗(yàn)結(jié)束后，按動復(fù)位鍵使計(jì)數(shù)顯示復(fù)零。
★將被測試板漆膜上放置在水平工作臺上的托板上，然后轉(zhuǎn)動托板控制手柄，使擺桿慢慢落在試板上。
★轉(zhuǎn)動起動手柄拔置6°或12°處，用擺條止動裝置檔住擺條。
★ 釋放擺條止動裝置，使擺桿自由擺動，計(jì)數(shù)裝置將自動記錄下擺桿由 6°-----3°或12°-------4°的阻尼次數(shù)。其阻尼時(shí)間應(yīng)按下計(jì)算：
t=T.`·n
式中：t-----涂層阻尼時(shí)間S
T-----擺的周期S/次
n-----規(guī)定角度范圍內(nèi)擺桿擺動的次數(shù)。
Operating rules of pendulum damping test machine:
★ Turn on the counting device, turn on the power switch, and set the K / P pendulum switch to the corresponding position. After the experiment is over, press the reset button to reset the count display to zero.
★ Place the paint film of the board under test on the supporting board on the horizontal workbench, and then turn the supporting control handle of the board, so that the swing bar slowly falls on the testing board.
★ Rotate the starting handle to set it at 6 ° or 12 °, and use the swing bar stop device to block the swing bar.
★ Release the stop device of the swing bar to make the swing bar swing freely. The counting device will automatically record the damping times of the swing bar from 6 ° ----- 3 ° or 12 ° ------- 4 °. The damping time should be calculated as follows:
t = T.` · n
In the formula: t ----- coating damping time S
T ----- Swing period S / times
n ----- The number of swings of the swing lever within the specified angle range.
擺桿阻尼試驗(yàn)儀結(jié)構(gòu)：
★儀器座：用于支承試板和擺桿，座上沒有一垂直承桿，并與具有工作平面的水平臺相連接。
★ 擺桿：Konig或Persoz
★ 技術(shù)裝置，自動記錄所需要擺動角度的次數(shù)。
★儀器罩
Swing bar damping tester structure:
★ Instrument holder: It is used to support the test plate and swing rod. There is no vertical bearing rod on the holder, and it is connected to a water platform with a working plane.
★ Pendulum: Konig or Persoz
★ Technical device, automatically record the number of times of swing angle required.
★ Instrument cover
擺桿阻尼試驗(yàn)機(jī)注意事項(xiàng)：
★準(zhǔn)玻璃板在每次使用前應(yīng)用乙醇，溶機(jī)汽油擦洗干凈。注意不得劃傷玻璃表面。
★應(yīng)定期或每次試驗(yàn)前，先用標(biāo)準(zhǔn)玻璃板試驗(yàn)，以驗(yàn)證儀器是否符合Konig擺250±10S：Persoz擺420S以上的指標(biāo)，如果不符則應(yīng)找出原因后排除之，使其達(dá)到要求可試驗(yàn)。
★應(yīng)在23±2℃相對濕度（50±5）%下進(jìn)行，使用儀器時(shí)必須加上儀器罩。
★儀器不要放在光線充足的地方進(jìn)行試驗(yàn)，以免接光電管受外界光線影響，而使自動計(jì)數(shù)裝置不能正常計(jì)數(shù)甚至停止計(jì)數(shù)，儀器應(yīng)放在無強(qiáng)光照射的地方。
★Konig擺的上部擺錘不要隨意改變其位置，因?yàn)樵摂[錘是調(diào)節(jié)K擺擺動周期之用的。改變其位置K擺的周期也將隨之改變。所以當(dāng)發(fā)現(xiàn)K擺的周期不是1.4S時(shí) 可調(diào)節(jié)擺錘使其達(dá)到1.4S。調(diào)節(jié)方法：讓擺在玻璃板上擺動，用秒表記錄10次或20次擺動時(shí)間，看其是否是14S或28S如果不是則調(diào)整擺錘位置，再用秒表記錄其擺動時(shí)間，如此反復(fù)進(jìn)行直至記錄時(shí)間達(dá)到14S或28S即擺動周期達(dá)到1.4S為止
Note on pendulum damping test machine:
★ The quasi-glass plate should be cleaned with ethanol and gasoline before use. Be careful not to scratch the glass surface.
★ It should be tested with a standard glass plate regularly or before each test to verify whether the instrument meets the specifications of Konig pendulum 250 ± 10S: Persoz pendulum above 420S. If it does not match, find out the reason and eliminate it to meet the requirements. test.
★ It should be carried out at 23 ± 2 ℃ relative humidity (50 ± 5)%, and the instrument cover must be added when using the instrument.
★ The instrument should not be placed in a place with sufficient light for testing, so as to prevent the photocell from being affected by external light, and the automatic counting device could not normally count or even stop counting. The instrument should be placed in a place without strong light.
★ Don't change the position of the upper pendulum of the Konig pendulum at will, because the pendulum is used to adjust the swing period of the K pendulum. The period of changing its position K pendulum will also change accordingly. So when it is found that the period of the K pendulum is not 1.4S. Adjustable pendulum to 1.4S. Adjustment method: swing the pendulum on a glass plate, record the swing time 10 or 20 times with a stopwatch, and see if it is 14S or 28S. If it is not, adjust the position of the pendulum, and then record the swing time with a stopwatch. When the time reaches 14S or 28S, the swing period reaches 1.4S.
