本文圖片、文字由上海淞江減震器集團提供，部分內容參考橡膠防震接頭http://www.shnxxjjt.com/xjfzjt/感謝您的閱讀與支持！！！

怎么判斷橡膠接頭的好壞

橡膠接頭叫法有很多，有可曲撓橡膠接頭，橡膠軟接頭，橡膠柔性接頭，軟接頭，減振器、管道減震器、避震喉等，是一種高彈性、高氣密性，耐介質性和耐氣候性的管道接頭。

橡膠接頭從外形看是由橡膠球與法蘭片組成，橡膠接頭生產廠家有許多，當然生產出來的質量也有所區別，怎樣才能購買到質量好價格優的橡膠接頭，就需要您對橡膠接頭的產品有充分的了解，這樣才能掌握橡膠接頭的好壞之分，當然購買了橡膠接頭后正確的安裝也是起到不小的作用，這些信息，相信您用心了解都會了然于胸的。

如何判斷一個橡膠接頭的好壞，可以從以下幾方面著手：

1、耐介質增重實驗：

可以從成品上取樣，浸泡在選定的一種或幾種介質中，一定溫度時間后取稱重，根據重量變化率硬度變化率推斷材料的種類。比如在100度機油中浸泡24小時，NBR，氟膠，ECO，CR質量及硬度變化率很小，而NR，EPDM，SBR增重一倍以上且硬度變化很大，體積膨脹很明顯。

2、熱空氣老化實驗：

從成品中取樣，放在老化箱里老化一天，觀察老化后的現象。可以分級老化逐步升溫。比如150度下CR，NR，SBR都會脆斷，NBR EPDM還有彈性。升到180度下普通NBR就會脆斷;而230度下HNBR也會脆斷，氟膠和硅膠仍然有很好的彈性。

3，燃燒法：

取少許樣品，在空氣中燒。觀察現象。一般來說氟膠，CR，CSM離火自息，即使燒著火苗也比一般NR、EPDM的要小的多。當然，如果仔細觀察，燃燒狀態、顏色、氣味也會提供為我們很多信息。比如NBR/PVC并用膠，有火源時火劈啪的亂濺，似乎有水似的，離火自熄，煙濃且有酸味。需要注意的是有時添加了阻燃劑但不含鹵素的膠也會離火自熄，這要借助別的辦法進一步推斷。

4、測比重：

用電子稱或分析天平，精確到0.01克的即可，外加一杯水，一根頭發絲即可。 一般來說氟膠比重最大，1.8以上，CR ECO的也多在1.3以上比重明顯偏大的可以考慮是這些膠。

5、低溫法：

從成品上取樣，用干冰和酒精制造一個合適的低溫環境。把樣品泡在低溫環境下2-5分鐘，在選定溫度下感覺軟硬程度。比如-40度下，同樣耐高溫耐油很好的硅膠和氟膠對比，硅膠則比較軟。

通過以上的方法比對相信你會更輕松的掌握橡膠接頭的區分方法，購買了合適的產品，就要正確的使用喲，

This picture and text provided by the Shanghai Songjiang absorber group, is part of the reference rubber shockproof joint http://www.shnxxjjt.com/xjfzjt/ thanks for your reading and support!!!

How to judge the quality of rubber joint
橡膠接頭http://www.bmlink.com/passer221
橡膠軟接頭http://www.bmlink.com/qq3041313014/
橡膠補償器http://www.bmlink.com/songjiangjianzhen 

There are a lot of rubber joint names, there is a flexible rubber joint, soft rubber joints, rubber flexible joint, flexible joint, shock absorber, pipe shock absorber, shockproof throat is a high elasticity, high air tightness, medium resistance and resistance to climate of the pipe joints.

Rubber joint in shape is composed of a rubber ball and a flange piece, rubber connector manufacturer has many, of course, produced quality also differ, how to buy good quality excellent price of rubber joints, you need to your products of rubber joint full understanding, so as to grasp the quality of rubber joints, of course, buy rubber joint after correct installation also played no small role, these information, I believe your intention understanding, will be clear in the chest.

How to judge a rubber joint is good or bad, can begin from the following several aspects:

1, medium weight gain test:

Can be taken from the finished product, soaked in the selected one or several kinds of media, a certain temperature time to take the weight, according to the weight change rate of hardness change rate inferred types of materials. For example, 100 degrees in oil soaked for 24 hours, NBR, fluorine plastic, ECO, CR quality and hardness change rate is very small, and NR, EPDM, SBR weight gain more than double and the hardness varies greatly, the volume expansion is obvious.

2, hot air aging experiment:

Samples from the finished product, put in the aging box aging one day, observing the phenomenon of aging. Can be graded aging gradually warming up. For example, 150 degrees CR, NR, SBR will be brittle, EPDM NBR also have flexibility. Rise to 180 degrees under normal NBR will be brittle fracture; and 230 degrees HNBR will also be brittle, fluorine rubber and silica gel is still very good flexibility.

3, combustion method:

Take a few samples, burn in the air. Observation phenomenon. In general, fluorine rubber, CR, CSM from the fire from burning flames, even than the average NR, EPDM is much smaller. Of course, if you look closely, the state of combustion, the color, the smell will also provide us with a lot of information. For example, NBR/PVC with glue, splashing a fire crackling fire, there seems to be like water, self extinguishing, smoke concentration and acidity. It should be noted that sometimes the flame retardant is added but the halogen free glue will also be extinguished from the fire, which will be further inferred by other means.

4, the proportion of the test:

With the electronic scale or analysis of the balance, accurate to 0.01 grams can be, plus a glass of water, a hair can be. Generally speaking, the largest proportion of fluorine plastic, more than 1.8, ECO CR is also more than 1.3 in the proportion of obvious partial can be considered to be the glue.

5, low temperature method:

Sampling from the finished product, making a suitable low temperature environment with dry ice and alcohol. The samples soaked in low temperature environment 2-5 minutes, the degree of hardness in the selected temperature. For example, -40 degrees, the same high temperature and good oil resistant silicone and fluorine rubber contrast, silicone is relatively soft.

Through the above method than to believe you will be more easily grasp the rubber joints of the distinction method, to buy the right products, it is the right to use yo,