초록 ▼

An automatic titration system that periodically and automatically determines the pH level and acid number of a flux solution in a flux reservoir associated with an automatic flux application apparatus. The automatic titration system pulls the flux solution from the flux reservoir of the fluxing mach

An automatic titration system that periodically and automatically determines the pH level and acid number of a flux solution in a flux reservoir associated with an automatic flux application apparatus. The automatic titration system pulls the flux solution from the flux reservoir of the fluxing machine on a continuous basis to be filtered. Flux to be sampled by the automatic titration system is deposited in a titration chamber where a titration analysis is performed. A known reagent solution is mixed with the flux solution in the titration chamber to determine the pH level and acid number of the sampled flux during the titration operation. Containers of flux solution and thinner solution located in the automatic titration system allow flux and thinner to be dispensed into the flux reservoir depending on the outcome of the titration analysis, so as to maintain the flux in the flux reservoir at the desirable pH level and acid number.

대표청구항 ▼

An apparatus for automatically monitoring a solder flux, said apparatus comprising: a frame structure; at least one first container holding a reserve flux solution, said at least one first container positioned in the frame structure; at least one second container holding a thinner solution, said at

An apparatus for automatically monitoring a solder flux, said apparatus comprising: a frame structure; at least one first container holding a reserve flux solution, said at least one first container positioned in the frame structure; at least one second container holding a thinner solution, said at least one second container positioned in the frame structure; a reagent container holding a reagent solution, said reagent container positioned in the frame structure; a titration system positioned in the frame structure, said titration system including a sample syringe that holds a controlled amount of an operational flux solution taken from a flux reservoir and a reagent syringe that holds a controlled amount of the reagent solution taken from the reagent container, said titration system including a titration container that receives a mixture of a sample of the controlled amount of the operational flux solution from the sample syringe and the controlled amount of the reagent solution from the reagent syringe, said titration system including a pH probe for determining a pH level of the mixture in the titration container, said titration system including means for causing reserve flux solution from the first container or thinner solution from the second container to be dispensed to the flux reservoir depending on the outcome of the titration test; a plurality of calibration sample containers positioned in the frame structure, said calibration sample containers holding a plurality of different calibration samples where each calibration sample has a known pH level, said pH probe determining the pH level of the calibration samples in order to calibrate the pH probe; and plumbing means for applying the operational flux solution from the reservoir to the sample syringe and applying the controlled amount of the operational flux solution from the sample syringe to the titration container, and for applying the reagent solution from the reagent container to the reagent syringe and applying the controlled amount of the reagent solution from the reagent syringe to the titration container, and for applying the calibration samples to the sample syringe and a controlled amount of the calibration samples to the titration container from the sample syringe, said plumbing means being positioned within the frame structure.