漆膜沖擊器是檢測儀器，適用檢評價色漆，清漆或相關(guān)產(chǎn)品的干膜涂層在標(biāo)準(zhǔn)實驗條件下受不同球體的沖擊而產(chǎn)生變形時其涂層抵抗從底材上剝落或開裂的能力，表現(xiàn)了被實驗涂層的強(qiáng)性和對底材的附著力。

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.

漆膜沖擊器根據(jù)GB1732-79標(biāo)準(zhǔn)設(shè)計，利用重物從高處落下沖擊漆膜，以測定漆膜的沖擊強(qiáng)度。目前，國內(nèi)及國際通用的沖擊試驗器雖種類繁多，但歸根結(jié)底都是以重錘的下落高度乘以重錘的質(zhì)量，其沖擊力在涂層上面引起涂層的破壞為原則。對于某些涂層而言，亦可以進(jìn)行反沖擊。這樣可以檢驗涂層的瞬時伸長率。

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-50漆膜沖擊器工作原理：

由控制器螺釘將重錘定在所要求的高度上，其高度由定位標(biāo)上可讀出，按壓控制器螺釘則控制器彈簧被壓縮，這時控制器滑塊的圓孔與控制器上蓋及控制器下底的圓孔對正掛鉤，使所聯(lián)結(jié)的重錘落下，撞擊沖桿，沖桿向下作用在事先放在枕墊塊上的是樣板上，之后提升重錘體，取出試驗過的樣板以觀察樣板上漆膜試驗情況。

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-50漆膜沖擊器技術(shù)參數(shù)：

★刻度表刻度：（0~50）cm；儀器刻度長度為0~50厘米，

★刻度表分度：1 cm；分度為1厘米

★沖擊頭直徑：8 mm；沖擊桿端鋼球為8毫米

★沖擊凹槽深度：2 mm；沖擊桿插入枕墊塊凹孔深度為2毫米。

★重錘重量：1 kg±1 g；重錘重1000克，并帶有可推卸的掛鉤，重錘體內(nèi)可加減鉛粒，以改變重錘的重量。

★枕墊塊邊緣曲度半徑為2.5~3.0毫米，凹孔直徑為15毫米。

★儀器凈重 11公斤

★裝箱后總重20公斤

★儀器外形尺寸為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.

漆膜沖擊器操作規(guī)程：

★按照產(chǎn)品標(biāo)準(zhǔn)所規(guī)定制備樣板。

★把備妥的樣板放置在枕墊塊3上緊貼與枕墊塊凹孔上，漆膜朝上，并使沖擊點距樣板邊緣不小于15毫米，或在樣板中間地方。

若使用一個樣板數(shù)次試驗時，應(yīng)使每個沖擊點邊緣相距不少于15毫米。

★按照產(chǎn)品標(biāo)準(zhǔn)中的規(guī)定，借控制器螺釘固定好高度，按壓控制螺釘重錘即自由的落在沖桿4上，沖桿將沖擊力傳給枕墊塊上的樣快。

將重錘提升起，重錘上的掛鉤自動被控制器掛住，取出樣板用四倍放大鏡或目力觀察（如果標(biāo)準(zhǔn)允許用目力觀察者），當(dāng)漆膜沒有裂紋，皺皮和剝落現(xiàn)象時，可增大重錘落下高度，繼續(xù)進(jìn)行漆膜耐沖擊強(qiáng)度的測定，直至漆膜破壞或漆膜能經(jīng)受50厘米高度之重錘沖擊為止。每次試驗都應(yīng)在樣板上新的部位進(jìn)行。根據(jù)漆膜監(jiān)牢程度，每次重復(fù)試驗時增大重錘投放高度2~10厘米。

★漆膜沖擊強(qiáng)度以1公斤重錘沖擊漆膜而不致使其引起損壞的A大高度以厘米表示。

假如在產(chǎn)品標(biāo)準(zhǔn)中已指出漆膜沖擊強(qiáng)度大小，則在試驗時重錘可直接從規(guī)定高度落下。

如在產(chǎn)品標(biāo)準(zhǔn)適當(dāng)說明時，可用反沖擊方法試驗特殊漆膜此時樣板的涂漆面應(yīng)朝下放置于枕墊塊上進(jìn)行試驗

★兩次測定值之差應(yīng)在±1厘米范圍之內(nèi)。

★在空氣溫度25±1°C和相對溫度70%以下條件進(jìn)行試驗

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-50漆膜沖擊器注意事項：

使用前的檢查與調(diào)整

檢查沖桿中心是否與枕墊塊凹孔中心一致，若有偏差時，可調(diào)整沖擊塊緊母14上的內(nèi)六方螺釘13.

3、定位標(biāo)是否對零線，將重錘放下，觀察定位標(biāo)上刻線是否與零線重合，有偏差時可調(diào)節(jié)定位標(biāo)6兩側(cè)螺釘。

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.