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金属基体覆盖层上往往含有肉眼看不到的微小针孔。外界腐蚀性介质很容易通过这些针孔和缺陷渗透到被保护的金属基体上,从而导致金属基体腐蚀,降低其使用寿命。如何定性、定量地测定这种缺陷一直是涂装行业十分关心,而又难以解决的问题。我所研制成的KXL-1500型覆层孔隙率测试仪性能达到国外80年代初的先进水平,无损检测,结果准确,迅速,与德国Fischer公司的POROSCOPE0.5～15型仪器测量的结果吻合,它是涂装行业的理想检测工具。一、仪器的测量原理本仪器采用高压放电原理测量覆层的孔隙;将
The metal substrate cover often contains tiny pinholes that the naked eye can not see. Outside corrosive medium can easily penetrate through the pinholes and defects to be protected metal matrix, resulting in corrosion of the metal matrix, reducing its service life. How to qualitatively and quantitatively determine such defects has always been the coating industry is very concerned about, but difficult to solve the problem. The KXL-1500 coated porosity tester developed by our company has reached the advanced level in the foreign countries in the early 1980s, and the results are accurate and rapid. The results are in good agreement with the results of POROSCOPE0.5 ~ 15 instruments from Fischer in Germany, It is the ideal inspection tool for the coating industry. First, the measuring principle of the instrument The instrument uses high-voltage discharge principle to measure the porosity of the coating; will