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                                        關于液壓軟管總成的4種試驗方法

                                        2012-03-26 0

                                        液壓軟管的常用的試驗方法有耐壓試驗、爆破試驗、泄露試驗及低溫彎曲試驗。今天小編就來帶大家簡單了解下這4種試驗方法:

                                        一、液壓軟管總成的耐壓試驗

                                        軟管總成以1.5倍的工作壓力進行靜壓試驗,至少保壓60s,不得有泄露和破裂等異常現象

                                        二、液壓軟管總成的爆破試驗

                                        將一根裝好接頭不超過30天且未經使用的軟管總成,勻速升壓做靜壓爆破試驗,在規定最小爆破壓力下不得出現泄漏和破裂現象

                                        (注:本試驗為破壞性試驗,試驗后試件報廢。)

                                        三、液壓軟管總成的泄漏試驗

                                        1.取一根裝好接頭不超過30天且未經使用的軟管總成,在規定最小爆破壓力的70%時,保壓5~5.5min;

                                        2.減少壓力到0;

                                        3.重復用最小爆破壓力的70%,在保壓5~5.5mim;

                                        4.在保壓過程中接頭處不得有泄漏或其他異常現象;

                                        (注:本試驗為破壞性試驗,試驗后試件報廢。)

                                        四、液壓軟管總成的低溫彎曲試驗

                                        1.取一根軟管總成,平直地在-40±3℃溫度下放置24h;

                                        2.在40℃溫度下,將被試件放在直徑為軟管的最小彎曲半徑的2倍的芯軸上于5~12s的時間內勻速地彎曲一次;

                                        3.軟管公稱內徑小于或等于22mm時在芯軸上彎曲180°,內徑在大于22mm時在芯軸上彎曲90°;

                                        4.彎曲后將試件恢復至室溫,目測表面不應有龜裂,并按規定進行耐壓試驗,此時不應有表面龜裂或滲漏。

                                        (注:本試驗為破壞性試驗,試驗后試件報廢。)

                                        深圳億威仕專業生產液壓軟管、膠管、鋼管等管材的試驗設備,歡迎來電咨詢!

                                        北京赛车计划数据
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