Structural adhesives are unevenly mixed and white stripes appear locally. It is easier to observe when the light is brighter. When the mixing is not uniform and the mixing is uniform, the strength of the structural adhesive decreases after curing, the curing cross-linking is incomplete, and when the curing is serious, it will stick and can not be cured. So what is the reason for the uneven mixing of structural glue in the two-component glue beater? How can we avoid it?

混合不均匀的结构胶有以下四种情况及原因如下：

There are four kinds of uneven mixing structural adhesives and the reasons are as follows:

①连续花胶：一般是混合器堵塞、混合器装配错误或者使用的混合单元不够多;

(1) Continuous gum: generally, the mixer is blocked, the mixer assembly is wrong or the mixing unit is not enough;

②断续有规律花胶：与系统性故障有关，如配比泵密封泄漏或者比例架磨损;

(2) Intermittent regular pattern gum: related to systemic faults, such as leakage of seal of proportioning pump or wear of proportioning frame;

③断续无规律花胶：与故障有关，如过滤器堵塞/针阀堵塞/压盘故障/配比泵入口堵塞或者密封失效/阀及高压球阀失效等;

(3) Discontinuous irregular pattern gum: related to faults, such as filter blockage/needle valve blockage/platen failure/ratio pump entrance blockage or seal failure/safety valve and high pressure ball valve failure;

 

双组份打胶机

④短暂停枪后又开枪时，开头出现一段花胶：主要是胶粘度匹配不理想，需要调整系统管道或降低工作压力。

(4) When the gun stops for a short time and fires again, a section of gum appears at the beginning: the main reason is that the gum viscosity matching is not ideal, and the system pipeline needs to be adjusted or the working pressure should be reduced.

要避免这种情况的出现，我们要对打胶机要定期进行保养，确保打胶机可以正常工作。每次开机前必须做蝴蝶试验，确保结构胶混合均匀。蝴蝶试验的方法如下：将打胶机打出的混合好的胶挤到纸中间5-10克，折合纸将胶压平。打开纸检查胶样，混合均匀的胶应无异色条纹，如果胶出现异色条纹，则表明混胶不均匀，应查找原因，问题解决后才能使用。

To avoid this situation, we need regular maintenance of the glue machine to ensure that the glue machine can work properly. Butterfly test must be done before starting each machine to ensure that the structural glue mixes evenly. The butterfly test method is as follows: the mixed glue produced by the gluer is squeezed into the middle of the paper for 5-10 grams, and the folding paper is pressed flat. Open the paper and check the rubber sample. The glue with uniform mixing should have no heterochromatic stripes. If there are heterochromatic stripes in the glue, it shows that the mixing is not uniform. The reason should be found out and the problem can be solved before using it.

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The above is the wonderful content provided to you by the small edition of the two-component glue machine. For more details, you are welcome to collect our official website: http://www.jntiannuo.com