QCJ-50漆膜冲击器

漆膜冲击器是检测仪器，适用检评价色漆，清漆或相关产品的干膜涂层在标准实验条件下受不同球体的冲击而产生变形时其涂层抵抗从底材上剥落或开裂的能力，表现了被实验涂层的强性和对底材的附着力。

Paint film impactor is a testing instrument, suitable for inspecting and evaluating dry film coatings of paints, varnishes or related products. Under standard experimental conditions, the coatings are resistant to peeling or cracking when they are deformed by the impact of different spheres The ability to show the strength of the tested coating and the adhesion to the substrate.

漆膜冲击器根据GB1732-79标准设计，利用重物从高处落下冲击漆膜，以测定漆膜的冲击强度。目前，国内及国际通用的冲击试验器虽种类繁多，但归根结底都是以重锤的下落高度乘以重锤的质量，其冲击力在涂层上面引起涂层的破坏为原则。对于某些涂层而言，亦可以进行反冲击。这样可以检验涂层的瞬时伸长率。

The paint film impactor is designed according to the GB1732-79 standard, and uses a heavy object to drop the paint film from a high place to determine the impact strength of the paint film. At present, although there are many types of domestic and international impact testers, in the final analysis, the drop height of the weight is multiplied by the mass of the weight, and its impact force causes the coating to be damaged on the principle. For some coatings, counter-impact is also possible. This allows the instantaneous elongation of the coating to be checked.

QCJ-50漆膜冲击器工作原理：

由控制器螺钉将重锤定在所要求的高度上，其高度由定位标上可读出，按压控制器螺钉则控制器弹簧被压缩，这时控制器滑块的圆孔与控制器上盖及控制器下底的圆孔对正挂钩，使所联结的重锤落下，撞击冲杆，冲杆向下作用在事先放在枕垫块上的是样板上，之后提升重锤体，取出试验过的样板以观察样板上漆膜试验情况。

QCJ-50 paint film impactor working principle:

The controller screw sets the weight at the required height, and its height can be read by the positioning mark. When the controller screw is pressed, the controller spring is compressed. At this time, the circular hole of the controller slider and the controller cover Align the hook with the round hole on the bottom of the controller to make the connected weight drop and hit the punch. The punch will act on the sample plate placed on the pillow block in advance. Then lift the weight body and take out the test. Pass the sample to observe the paint film test on the sample.

QCJ-50漆膜冲击器技术参数：

★刻度表刻度：（0~50）cm；仪器刻度长度为0~50厘米，

★刻度表分度：1 cm；分度为1厘米

★冲击头直径：8 mm；冲击杆端钢球为8毫米

★冲击凹槽深度：2 mm；冲击杆插入枕垫块凹孔深度为2毫米。

★重锤重量：1 kg±1 g；重锤重1000克，并带有可推卸的挂钩，重锤体内可加减铅粒，以改变重锤的重量。

★枕垫块边缘曲度半径为2.5~3.0毫米，凹孔直径为15毫米。

★仪器净重  11公斤

★装箱后总重20公斤

★仪器外形尺寸为250×140×830mm

QCJ-50 paint film impactor working principle:

The controller screw sets the weight at the required height, and its height can be read by the positioning mark. When the controller screw is pressed, the controller spring is compressed. At this time, the circular hole of the controller slider and the controller cover Align the hook with the round hole on the bottom of the controller to make the connected weight drop and hit the punch. The punch will act on the sample plate placed on the pillow block in advance. Then lift the weight body and take out the test. Pass the sample to observe the paint film test on the sample.

漆膜冲击器操作规程：

★按照产品标准所规定制备样板。

★把备妥的样板放置在枕垫块3上紧贴与枕垫块凹孔上，漆膜朝上，并使冲击点距样板边缘不小于15毫米，或在样板中间地方。

若使用一个样板数次试验时，应使每个冲击点边缘相距不少于15毫米。

★按照产品标准中的规定，借控制器螺钉固定好高度，按压控制螺钉重锤即自由的落在冲杆4上，冲杆将冲击力传给枕垫块上的样快。

将重锤提升起，重锤上的挂钩自动被控制器挂住，取出样板用四倍放大镜或目力观察（如果标准允许用目力观察者），当漆膜没有裂纹，皱皮和剥落现象时，可增大重锤落下高度，继续进行漆膜耐冲击强度的测定，直至漆膜破坏或漆膜能经受50厘米高度之重锤冲击为止。每次试验都应在样板上新的部位进行。根据漆膜监牢程度，每次重复试验时增大重锤投放高度2~10厘米。

★漆膜冲击强度以1公斤重锤冲击漆膜而不致使其引起损坏的A大高度以厘米表示。

假如在产品标准中已指出漆膜冲击强度大小，则在试验时重锤可直接从规定高度落下。

如在产品标准适当说明时，可用反冲击方法试验特殊漆膜此时样板的涂漆面应朝下放置于枕垫块上进行试验

★两次测定值之差应在±1厘米范围之内。

★在空气温度25±1°C和相对温度70%以下条件进行试验

Operation rules of paint film impactor:

★ Prepare the template according to the product standard.

★ Place the prepared sample on the pillow block 3 and close to the recessed hole of the pillow block with the paint film facing up, and make the impact point not less than 15 mm from the edge of the sample, or in the middle of the sample.

If a sample is used several times, the edge of each impact point shall be not less than 15 mm apart.

★ According to the product standard, the height is fixed by the controller screw, and the weight of the control screw is pressed to fall on the punch 4 freely. The punch transmits the impact force to the pillow block.

Lift the weight, and the hook on the weight is automatically held by the controller. Take out the sample and use a four-time magnifying glass or visual observation (if visual observation is allowed by the standard). When the paint film is free of cracks, wrinkles and peeling, You can increase the drop height of the weight, and continue to measure the impact strength of the paint film until the paint film is damaged or the paint film can withstand a hammer impact of 50 cm in height. Each test shall be performed in a new location on the template. According to the degree of paint film imprisonment, increase the weight drop height by 2 to 10 cm each time the test is repeated.

★ The impact strength of the paint film is expressed in centimeters by a 1 kg weight that does not cause damage to the paint film.

If the impact strength of the paint film is indicated in the product standard, the weight can be dropped directly from the specified height during the test.

If the product standard is properly stated, the special paint film can be tested by the impact method. At this time, the painted surface of the sample should be placed on the pillow block for testing.

★ The difference between the two measured values should be within ± 1 cm.

★ Test under the conditions of air temperature 25 ± 1 ° C and relative temperature below 70%

QCJ-50漆膜冲击器注意事项：

使用前的检查与调整

检查冲杆中心是否与枕垫块凹孔中心一致，若有偏差时，可调整冲击块紧母14上的内六方螺钉13.

3、定位标是否对零线，将重锤放下，观察定位标上刻线是否与零线重合，有偏差时可调节定位标6两侧螺钉。

QCJ-50 paint film impactor matters needing attention:

1. Inspection and adjustment before use

2. Check whether the center of the punch is consistent with the center of the recessed hole of the pillow block. If there is a deviation, adjust the inner hexagonal screw 13 on the tight nut 14 of the impact block.

3. If the positioning mark is on the zero line, lower the weight and observe whether the engraved line on the positioning mark coincides with the zero line. If there is a deviation, adjust the screws on both sides of the positioning mark.