腾达试验仪器厂：

　　漆膜摆式硬度计是检测仪器，适用于色漆、清漆及其有关产品的取样试验，以测定色漆、清漆及其有关产品的皮膜硬度。

　　Paint film pendulum hardness tester is a testing instrument suitable for sampling tests of paints,varnishes and related products to determine the film hardness of paints,varnishes and related products.

　　漆膜摆式硬度计特点表现在水平机构的改进；刻度标尺能够水平移动，便于零点调整；加之配以光电计数器，因此，快速、准确、节省人力。

　　The characteristics of the paint film pendulum hardness tester are reflected in the improvement of the horizontal mechanism;the scale can be moved horizontally to facilitate zero adjustment;coupled with a photoelectric counter,it is fast,accurate and saves manpower.

　　漆膜摆式硬度计工作原理：

　　有一定重量和形状的摆，接触于被测皮膜的表面，由于重力摆和涂层间的相互作用是复杂的弹性和粘弹性的两种性质，且又因摆的重量、形状以及地理和环境等因素的影响，因此，表面愈软，接触于这一表面的重力摆的摆幅衰减愈快。

　　皮膜硬度的表示是以一定重量的摆，置于标准玻璃上，在规定的角度范围内所摆动的振幅时间或次数和置于被测皮膜上，在规定的角度范围内所摆动的在振幅时间或次数之比表示之，

　　即：H=n/n0

　　式中：n：摆在皮膜上，在规定的角度范围内所摆动的振幅时间或次数。

　　n0：摆在玻璃板上，在规定的角度范围内所摆动的振幅时间或次数。

　　Working principle of paint film pendulum hardness tester:

　　A pendulum with a certain weight and shape is in contact with the surface of the film under test.Due to the interaction between the gravitational pendulum and the coating,it is a complex two kinds of elastic and viscoelastic properties.And other factors,so the softer the surface,the faster the swing of the gravitational pendulum that contacts this surface decays.

　　The hardness of the film is expressed by a certain weight of the pendulum,placed on the standard glass,the amplitude time or number of swings within the specified angle range,and the amplitude time Or the ratio of times,

　　That is:H=n/n0

　　In the formula:n:the amplitude time or number of swings on the membrane within a specified angle range.

　　n0:amplitude time or number of swings on a glass plate within a predetermined angle range.

　　漆膜摆式硬度计技术指标：

　　（一）摆

　　★摆的形式M—3

　　★摆的总质量120g±1g

　　★摆的玻璃值440S±6S记数：352±4次

　　（二）专用计数器

　　★电源22V~50HZ

　　★功耗4W

　　★记数范围0~999

　　★外形尺寸：200X150X570mm

　　★重量：25kg

　　Technical index of paint film pendulum hardness tester:

　　(A)pendulum

　　★The form of pendulum M-3

　　The total mass of the pendulum 120g±1g

　　★Swing glass value 440S±6S Count:352±4 times

　　(Two)dedicated counter

　　★Power 22V~50HZ

　　★Power consumption 4W

　　★Count range 0~999

　　★Dimensions:200X150X570mm

　　★Weight:25kg

　　漆膜摆式硬度计操作与使用：

　　★从附件箱里拿出地角调整螺钉垫片，放入仪器外罩内，把主机放置其上，调整地角螺钉，观看水平泡，把主机调整并置于水平位置。

　　★把电源插头线盒光电头线分别插于计数器后面的各自插座上。把光电头线另一端的U型支架放在标尺后面的U型支架固定槽内，并用相应的螺钉紧固。光电头所放的位置应在标尺刻度线2°内侧之切线位置处。

　　★把摆从附件箱里取出来，置于工作台和标准玻璃板上，扳起定位提手，把摆之横梁上的缺口对准定位提手的刀口，摆静止后，应对准标尺刻度的另点，如不在另点则应水平移动标尺，然后用支柱上的螺钉紧固住。

　　★启动摆条推动机构、止动机构，使摆条置于5°的正视线上，扳下定位提手。

　　★接通计算器电源，启动计数器电源开关，推动止动装置使摆条自由摆动（注意摆条支点不要移动）摆条在标准玻璃上摆动的时间为440S±6S，次数为352±4次。若不在此时间或次数内则应调整摆上的微调捶，反复微调，使其达到上述标准值。

　　★把所测涂料用涂膜涂布器或其它方法均匀地涂布在试验用玻璃板上。

　　★涂膜的干燥（自干或烘干）应达到产品要求所规定的时间。

　　★漆膜的厚度应达到产品所规定的标准。

　　★把制备好的漆膜试验板放置在工作台上，观其摆从2°~5°摆动所用的时间和次数，并将其秒数，或次数记录下来。

　　★用工作原理一节中所提供的公式计算之，所得之数即为所测漆膜硬度值，一般在一块试片上（不同位置）作三次试验，将所得的结果求取算术平均值为A后结果，但两次所测得之差，不得大于3%（秒数）度数不得大于5%。

　　★每次试验前应用、乙醇或溶机汽油将标准玻璃板或摆条上的钢珠擦拭干净，擦拭所用之抹布应清洁，不要把标准玻璃板造成划痕。

　　★支点钢珠应定期检查，当发现有钢珠表面损伤时，可稍微移动钢珠，变换它的接触点，钢珠表面如磨至不符合要求时，则应更换新钢珠。

　　★应当指出：本仪器反映了涂料对其环境的敏感性，因而试验应当在25±1°C，相对湿度60%~70%，周围无振动的条件下，且在无气流的条件下进行之。因此，试验时必须加外罩并关闭所有小门

　　Operation and use of paint film pendulum hardness tester:

　　★Take out the ground angle adjustment screw gasket from the accessory box,put it into the instrument cover,place the main unit on it,adjust the ground angle screw,watch the horizontal bubble,adjust the main unit and place it in a horizontal position.

　　★Plug the photoelectric plug wire of the power plug box into the respective sockets behind the counter.Put the U-shaped bracket at the other end of the photoelectric cable into the U-shaped bracket fixing groove behind the ruler,and fasten with the corresponding screws.The position of the photoelectric head should be at the tangent position on the inner side of the scale's 2°.

　　Remove the pendulum from the accessory box,place it on the workbench and standard glass plate,pull up the positioning handle,align the gap on the pendulum beam with the knife edge of the positioning handle.After the pendulum is stationary,it should be aligned with the scale.At another point,if not at the other point,move the ruler horizontally,and then fasten it with the screws on the pillar.

　　★Activate the pendulum push mechanism and stop mechanism,place the pendulum on the front line of 5°,and pull down the positioning handle.

　　★Turn on the power of the calculator,start the power switch of the counter,and push the stop device to make the pendulum swing freely(be careful not to move the fulcrum of the pendulum).The time for the pendulum to swing on the standard glass is 440S±6S,and the number of times is 352±4.If it is not within this time or number of times,the fine adjustment on the pendulum should be adjusted and repeated fine adjustment to make it reach the above standard value.

　　★Apply the coating film applicator or other method for the tested coating to the test glass plate uniformly.

　　★The drying of the coating film(self-drying or drying)should reach the time specified by the product requirements.

　　★The thickness of the paint film should reach the standard specified by the product.

　　★Place the prepared paint film test board on the workbench,observe the time and number of times it takes to swing from 2°to 5°,and record the number of seconds or times.

　　★Calculate it with the formula provided in the working principle section.The number obtained is the hardness value of the paint film measured.Generally,three tests are performed on a test piece(different positions).The arithmetic average of the obtained results is A.After the results,but the difference between the two measurements should not be greater than 3%(seconds)degrees should not be greater than 5%.

　　★Before each test,wipe the steel balls on the standard glass plate or pendulum with ethanol or solvent gasoline.The cloth used for wiping should be clean,and the standard glass plate should not be scratched.

　　★The fulcrum steel ball should be inspected regularly.When the surface of the steel ball is found to be damaged,the steel ball can be moved slightly to change its contact point.If the surface of the steel ball is ground to meet the requirements,it should be replaced with a new steel ball.

　　It should be pointed out that this instrument reflects the sensitivity of the coating to its environment,so the test should be performed under the conditions of 25±1°C,relative humidity of 60%~70%,no vibration around,and no air flow..Therefore,it is necessary to cover and close all small doors during the test.

　　QBY-II漆膜摆式硬度计结构：

　　共分五部分组成：a、底座部分；b、工作台部分；c、摆；d、计数器部分；e、仪器外罩部分。

　　QBY-II paint film pendulum hardness tester structure:

　　It is divided into five parts:a,base part;b,table part;c,pendulum;d,counter part;e,instrument cover part.