連達(dá)品牌軟管總成-扣壓技術(shù)說(shuō)明（中英文版）
1、 膠管尺寸
膠管內(nèi)徑要適當(dāng)。管徑過(guò)小會(huì)加大管路內(nèi)介質(zhì)的流速，是系統(tǒng)發(fā)熱，降低效率，而且會(huì)產(chǎn)生過(guò)大的壓力降，影響整 個(gè)系統(tǒng)的性能。若膠管采用管夾固定或膠管過(guò)鋼板等間隔物時(shí)，也要注意膠管的外經(jīng)尺寸。
2、 工作壓力
資料中有關(guān)膠管的動(dòng)態(tài)工作壓力是指膠管的連續(xù)工作允許的最高壓力。按照有關(guān)國(guó)際標(biāo)準(zhǔn)規(guī)定的液壓膠管的安全系數(shù)，我們推薦的工作壓力通常為膠管最低爆破壓力值的四分之一。
3、 沖擊壓力和疲勞壽命
膠管的選擇是根據(jù)液壓系統(tǒng)設(shè)計(jì)的最高壓力值來(lái)確定的。由于液壓系統(tǒng)的壓力值通常是動(dòng)態(tài)的，有時(shí)會(huì)出現(xiàn)沖擊壓 力，沖擊壓力峰值會(huì)大大高于系統(tǒng)的最高壓值。但系統(tǒng)上一般都有溢流閥，故沖擊壓力不會(huì)嚴(yán)重影響膠管的疲勞命，對(duì)于沖擊壓力特別頻繁的液壓系統(tǒng)，建議選用耐脈動(dòng)沖擊的膠管產(chǎn)品。
4、 溫度范圍
用戶應(yīng)該在膠管質(zhì)量規(guī)范允許的溫度內(nèi)使用膠管，如果工作環(huán)境溫度超過(guò)這一范圍，將會(huì)影響到膠管的壽命，其承壓能力也會(huì)大大降低。工作環(huán)境溫度長(zhǎng)期過(guò)高或過(guò)低的系統(tǒng)，建議采用軟管護(hù)套。
5、 化學(xué)相容性
若使用特殊的液壓介質(zhì)，用戶應(yīng)確保所選用的膠管總成其膠管內(nèi)，外層，接頭以及O 型密封圈與介質(zhì)相容。
6、 彎曲半徑
安裝膠管總成時(shí)應(yīng)注意到膠管的最小彎曲半徑，若彎曲半徑過(guò)小，將降低膠管的承壓能力并影響其使用壽命。
7、 摩擦
膠管在使用時(shí)如常與硬物接觸或摩擦，建議在膠管外部加彈簧護(hù)套。
影響膠管總成使用情況的因素很多，只有按照工況正確選用膠管及接頭，才能保證使用膠管的可靠性和經(jīng)濟(jì)性 這些因素有：有關(guān)蘇強(qiáng)格高壓總成的其它技術(shù)問(wèn)題，歡迎垂詢。
There are many factors which can affect the usage condifion of hose assembly,use the hose assembly and hose fittings in
acorrect way can ensure its reliability and anonomicaleffciency.these factors are as follows。
1.Hose Dimension
The selectlon of hose inside diameter must be correctly made.if the hose inslde diameter is too small,it will speed up the medium in the pipe-line,heated the system,lower the efficiency and produce excessive pressure
drop which will affect the whole system's capability.if it fix with hose clamp or cross the steel board,the outside diameter of hose should be pay more attention.
2.Working Pressure
The dynamic working pressure in this catalog refers to the allowable maximum pressure in condition of continuously working.According to the safety modulusof hydraulic hose ruled by international standard,werecommend that the working pressure is one quarter of the minimum blast Pressures.
3.Impact Pressure &Fatigue Life-span
After determining the maximum system pressure for a hydraulic system,hoseselection can be made .For the hydaulic system's pressure always be dynamic,there often appears an impact pressure,the maximum impact pressure is much higher than the maximum system pressure.To be luckily,there is an over fallvalve in every hydraulic system,so high impact pressure cannot affect the fatigue life-span seriously.As for hydaulic system whose impact pressure appears very frequently, we advise you choose the special hydraulic hose which is able to endure the high impact Ptessure.
4.Temperature Range
User must ensure that the temperatueris in an allowabie range of hose,if exceeding this range,the life-span of hose will be shorten,and the capacity to endure pressure will get down.if the working condition temperature keep too high or too low in a longtime,we advice you use the hose spring guard.
5.Chemical Compatibilit
If use special hydraulic medium,user should ensure the material of hose inner side and cover,the hose fittings and O-ring can compatible with the special hydraulic mendium.
6.Bending Radius
Pay more attention to its minimum bending radius when install the hose assembly,if the bending radius is smaller than the minimum one,the capacity of enduring pressure will get down and life-span of hose will be shortened.
7 . Friction
We advised you use a spring guard if the hose assembly is always in the condition of touching and making friction with hard object,Any technical question about Stronger Hydraulic hose assembly,welcome to inquire!
