A method of screening the heat treated aluminum sheet, a method for establishing INTERVAL PROCESSING AND METHOD FOR SORTING heat-treated aluminum sheet

摘要

1. A method of screening for the heat-treated aluminum sheet production process comprising the steps of: test sheet to obtain an initial value of strength, the aluminum sheet is stored for a period of time; calculating a subsequent value of the sheet strength after a period of time; iotbirayut sheet for use in the production process, if the subsequent value of the sheet strength is within a predetermined diapazona.2. A method according to Claim. 1, wherein the step of testing the sheet strength to the initial value is performed within a predetermined period after termoobrabotki.3 process. A method according to Claim. 1, wherein the step of determining subsequent strength values ​​corresponds to the yield strength of aluminum lista.4. A method according to claim. 3, wherein the predetermined range subsequent strength values ​​is the value of the yield stress of from 90 MPa to 185 MPa.5. A method according to Claim. 1, wherein the step of determining the subsequent strength of the aluminum sheet is based on solidification properties upon aging heat-treated alyuminiya.6. A method according to Claim. 1, wherein the production process is a process shtampovki.7. A method according to Claim. 1, wherein the aluminum sheet is aluminum series 6000.8. A method for establishing processing interval for the heat-treated aluminum sheet before use in the manufacturing process, comprising the steps of: obtaining an initial value of the aluminum sheet strength, plotted subsequent values ​​of strength for a period of time by utilizing the change hardening rate during aging relative to the initial value of the strength ; compare subsequent strength value