تحليل تنش و امكان سنجي ساخت آب بند مكانيكي (رينگ لامينار)

Stress Analysis and Feasibility of Fabrication of Laminar Ring

با توجه به نياز بالاي شركت هاي فولادسازي، ضرورت بومي سازي آب بندهاي مكانيكي لامينار از طرف مجتمع فولاد مباركه اصفهان مطرح شد. در اين تحقيق ابتدا اقدام به بررسي شرايط كاري و استخراج نيروهاي وارده بر آب بند شد. بررسي ها نشان دادند كه نيروهاي وارده، شبه استاتيك بوده و مقادير فشار 225=PH (پاسكال) و 220=PGr (بار) و گشتاور 306/7=TS (نيوتون بر متر) هستند. نتايج آزمايش كشش نشان داد كه استحكام نهايي براي آب بند و تسمه به ترتيب 620/3 و 594/1مگاپاسكال هستند. نتايج حاصل از تحليل استاتيك روي آب بند لامينار و آب بند ساخته شده نشان داد كه بيشترين تنش براساس تئوري وون ميسز به ترتيب 108×1/39 (پاسكال) و 108×3/2 (پاسكال) و ضريب اطمينان نيز براي هركدام به ترتيب 2/808 و 1/338 است.

Due to the high demand of steel factories, the necessity of localization of mechanical laminar was introduced from Mobarakeh Steel Company of Isfahan. In this research, we first studied the working conditions and the extraction of the forces applied to the waterworks. The investigations showed that the forces are quasi-static and the pressure values are PH=225Pa and PGr=220Bar, and the torque TS=306.07N.m. The results of the tensile test showed that the final strength for the waterworks and belt was 620.3 and 594.1 MPa, respectively. In order to make the desired waterworks, the belt was prepared in 6 steps from the mold and formed a circular shape. Using the matrix pitch matrix, the staircase was created on the waterworks. The results of static analysis on the mechanical laminar and domestic laminar showed that the maximum stresses, based on Von Mises theory, were 1.39×108 Pa and 3.2×108 and the confidence coefficient for each was 2.808 and 1.338, respectively.