关键词: 过程优化与控制, 稳态过程, 平均检出质量, 连续抽样检验

Abstract: For concurrently utilizing the attribute and variable information of the process data during the process optimization and control,the reduced Continuous Sampling Plan (CSP-2) was redesigned,and the Optimal CSP-2 (OCSP-2) boundary scheme was proposed based on the process conformance estimation.The inspection scheme in OCSP-2 was the boundary of all feasible inspection schemes under the specified quality requirement for in-control process,which could control the fluctuating towards directions of improvement and deterioration tighteningly.On this basis,the boundary identical equation and contour identical equation were established to solve the parameters of the inspection scheme.Without increasing the inspection workload,OCSP-2 operated the inspection scheme with the attribute information of process data,and estimated the proportion of conformance and its lower confidence limit with the variable information.OCSP-2 could simultaneously perform multiple tasks during process optimization and control,such as judging the process quality level and the operation or stops of the inspection scheme,adjusting the parameters of the inspection scheme.An application example was supplied to verify the effectiveness and feasibility of the proposed scheme.

Key words: process optimization and control, in-control process, average outgoing quality, continuous sampling plan