gui chao cable news: rubber formula design principles
from:guichao author:admin click: 668 addtime:2017-04-22 15:47:21
the following four aspects should be taken into consideration when formulating rubber formula:
the use of rubber in wire and cable technology and the properties of raw materials,
the processing characteristics of rubber, the economy and source of raw materials.
1, the use of rubber: formula should be fully aware of the product performance requirements,
the quality and service life of the product must be guaranteed,
and should meet the requirements of the national standards of performance indicators and the amount of rubber,
if there is no technical requirements,
should be more detailed understanding of the cable in the use of the site for further research and analysis,
cable rubber can be divided into different:
insulation rubber (including high voltage insulation and low voltage insulation);
rubber sheath (high strength sheath and general sheath);
core rubber; special purpose rubber (oil resistant, flame resistant, semi conductive rubber, etc.);
2, the nature of raw materials: especially the nature and characteristics of the complexing agent and the relationship between the agent,
it is worth noting that the use of the quality of the agent and the grade of the species must have detailed information,
in particular, the use of new raw materials, must have detailed analysis and experimental results, should try to use their own products.
3, in the design of the formula should also consider the processing of rubber:
according to the characteristics of the equipment used by the enterprises, the processing methods are different,
the process parameters are not the same, the formula should be different,
such as the cable production is mainly used in the insulation of the package method,
there are longitudinal packing method (cold press method) and extrusion method (hot pressing method),
continuous vulcanization coating method, the method of complex formula of rubber bag everywhere,
it is necessary to ensure the requirements of mixed rubber process and packaging process.
4, but also to consider an important issue is the economic value:
selection of raw materials should be focused on ensuring the quality of the premise,
as far as possible the use of cheap raw materials, at the same time,
should also take into account the proportion of raw materials,
because the prices of raw materials are calculated in terms of weight,
and the products are calculated in volume units,
if you do not consider the proportion of raw materials,
the use of cheaper than raw materials, the purpose is to reduce costs,
but often get the opposite result. finally, pay attention to the technical performance of the formula,
reduce the energy consumption and operation time, and improve the quality of rubber,
reduce the consumption of raw materials, at the same time pay attention to labor protection, to avoid the use of toxic raw materials.