Epoxy resin is suitable for the sample with all types of materials, particularly applicable to the vacuum impregnation.In all cold inlaid resin, epoxy resin shrinkage rate of the lowest.curing时间比较长，但是对大多数材料的粘附性能十分优异。在进行正确比例的混合后，它们通过化学反应进行聚合。硬化环氧树脂是硬质塑料，不受中等加热或化学品影响。Struers 的环氧树脂系统由两部分组成：树脂和固化剂/硬化剂。所有的环氧树脂都具有诸如低蒸气压、透明、高附着力、低粘度、无收缩等特性。作为化学计量树脂，固化剂比例是至关重要的。应该权衡这两个部分，以获得最佳的镶样结果。如果只能通过体积测量数量，可使用注射器来测量树脂和固化剂/硬化剂的数量
Depending on the amount of resin curing epoxy resin system.If resin quantity is little, this process may take longer, because there is easy to spread in addition to the advantageous conditions of excess heat generated by chemical reaction.But if the resin content, low thermal conductivity due to the reaction system, heat hoarding, and therefore can accelerate the cure process.Under certain conditions, the peak temperature can reach 150-200 ° C / 302-392 ° F.To avoid this situation, to achieve a more consistent set sample as a result, the drying box control in the process of curing temperature can be used.Resin hardened by polymerization.Aggregation is an exothermic reaction.The heat generated by the size depends on the type and number of sample with medium.Some kind of medium in the process of polymerization temperature significantly higher than 100 ℃.
Porous materials, such as ceramic or thermal spray coating) needs to be vacuum impregnation.Vacuum impregnation process in a vacuum chamber.Vacuum chamber pressure is about 0.1 to 0.15.Fill all the holes on the surface with resin.Resin can strengthen the fragile material.Can minimize the preparation of defects, such as pull out, crack or not open pore).Only epoxy resin can be used for vacuum impregnation, because they have low viscosity and low vapor pressure characteristics.Fluorescent dyes can be used mixed with epoxy resin, in order to find out everything under fluorescent light pore filling.Place the sample in sample cup, and put it in a vacuum chamber.Cover, a vacuum chamber.Lasts for a few minutes to process, to ensure that there is no air to stay in the small pore and fracture.Open the valve, make the inhalation of epoxy resin in vacuum chamber.When sample complete coverage in the sample with medium, close the valve and close the vacuum pump.The atmospheric pressure will epoxy resin pressure into pores and cracks.
Acrylic resin is easy to use, short curing time, has a very low degree of shrinkage and excellent with sample performance.They are very irregular shape of sample set new samples, can be used for routine or a single specimen.Acrylic resin offer attached and does not carry the two forms of mineral filler.If you need to color code, can be used to dye.in混合丙烯酸树脂时，建议向液体中添加粉末（硬化剂），这将生成最均匀的树脂混合物。
Choose a set sample cup, put clean and dry the sample.Carefully measure the resin composition of the correct quantity (or weight by volume).Thoroughly mixing various ingredients, pour the mixture of resin on the sample, and make full set sample cup curing.To achieve high quality with sample, mixing and curing time is an important parameter.Should follow the instruction of the proposal.
All cold inlaid medium tolerance common etchant.But some cold inlaid medium can react with such as organic solvents such as acetone, alcohol
Clamp (metal or plastic) ensures that keep it upright plate, foil and wire.Double adhesive foil can be used to make the irregular shape of sample keep it upright.Liquid binder may react with some types of cold inlaid medium.For sample is too small and not by the clamp (some electronic components, for example), use quick-drying glue them to the bottom of the mould, to make it keep in vertical position during embedding.
This guide is intended to provide detailed information about the different cold Mosaic materials, tips and tricks.To the cold inlaid selection guidelines page
Go to the e - shop to check the materials
