亚欧乱亚欧乱色视频 聚氨酯緩沖器是起重機、塔吊、裝卸機、電梯、礦車運行至極限位置或發生碰撞所需的防撞裝置,它能迅速地將沖擊勢能轉化為彈性勢能,是電梯、起重機等大型笨重機械極限位置的安全裝置。聚氨酯緩沖器以電梯為例:當電梯超越底層或頂層時,轎廂或對重撞擊緩沖器,由緩沖器吸收或消耗電梯的能量,從而使轎廂或對重安全減速至停止。國內生產的起重設備中,絕大部分使用的是橡膠式,彈簧式和液壓式緩沖器。
彈簧式緩沖器的使用率較高,這種緩沖器制造,安裝都比較麻煩,成本高,並且在起緩沖作用時對吊車的反彈沖擊較大,對設備和操作者都不利。
液壓式緩沖器雖然可以克服彈簧式反彈沖擊的缺點,但造價太高,且液壓管路易泄漏,易出故障,維修量大。
橡膠式緩沖器具有抗沖擊,抗壓性能弱,使用壽命短的缺點。
因此較發達國家近年來大都采用新工藝生產聚氨酯類緩沖器,這種緩沖器克服了三種老式緩沖器的主要缺點,工作是對吊車幾乎沒有反彈沖擊,單位體積的沖擊容量大,安裝非常簡單,不用維修,抗老化性能優良,而且成本只有彈簧式緩沖器的二分之壹,比液壓式更低
聚氨酯緩沖器---螺柱式法蘭盤式壓板式為我廠主打產品,該產品不但可吸收大量的沖擊性能,還有較高的沖擊彈性,良好的抗壓恢復性,良好的絕緣性,防爆性,防腐蝕性,耐熱性,耐寒性,耐油性和耐老化等優異性能。
項目 | 硬度(邵) | 拉伸強度 (Mpa) | 伸長率 (%) | 撕裂強度 (Kn/m) | 抗壓強度 (n/cm2) | 操作溫度 |
指標 | 45A-80A | 4.5-5.5 | 460%-530% | 33-38 | 10-15 | -20- +55 |
Polyurethane BufferPolyurethane buffer is an elevator and heavy-lifting large heavy mechanical limit position of the safety device. Polyurethane buffer is tower crane, loading and unloading machine, elevator, harvesters operation to limit position or collision required anti-collision device, it can quickly will impact potential energy into elastic energy, has the strong hardness, good flexibility , quick recovery, oil resistance, corrosion resistance etc. Suitable for metallurgy, mine, railway, port, shipbuilding, automobile, weighing apparatus, large-scale machinery, equipment, etc.
Special-purpose Polyurethane buffer hits the product for my factory owner,this product not just only absorb the massive impact properties,also has the high shock elasticity, the good resistant to compression restitution, the good insulating property, the explosion-proof, the corrosion preventing, the thermal stability, the resistance to cold, the oil resistance and bears the aging and so on outstanding performance.
Hardness (Shore) | Tension Strength (mpa) | Elongation % | Tearing Strength (kn/m) | Operating Temperature | Density (g/cm3) |
45A-80A | 4.5-5.5 | 460-530 | 33-38 | -20 - +55 | 0.55-0.75 |