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                                        做焊管水壓試驗的基本步驟

                                        2016-07-14 0

                                        水壓試驗是保證焊管生產質量的必備設備。目前,市場市場上的焊管水壓試驗機的工作過程為:給料、夾緊、充水、增壓、保壓、卸壓、出料。該流程同時也構成了試管水壓機的基本動作循環,現代水壓試驗機大多采用PLC控制,使各工作過程自動依次完成,并具有試驗結果參數自動記錄功能。根據密封形式可分為徑向密封和端面密封。徑向密封是采用與焊管內徑或外徑配合的密封圈,通過密封圈的受壓膨脹以實現密封管壁的目的,其優點是鋼管夾緊和抽出都很容易、密封可靠、鋼管軸向受力小、不容易彎曲,但密封頭結構較為復雜,規格較多,且管端存在試驗盲區;端面密封是依靠密封材料與管口端面壓迫而達到管口密封的目的,其優點是試驗結構簡單、通用性好,但對密封材料性能和油水壓差比例和伺服控制系統的要求較高。。

                                        北京赛车计划数据
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