上海淞江減震器集團(tuán)有限公司介紹：DN150球墨法蘭天然橡膠伸縮節(jié)信息，淞江集團(tuán)為眾多客戶提供更優(yōu)質(zhì)的產(chǎn)品，不斷開發(fā)新產(chǎn)品，不斷的走在行業(yè)的前沿，又一新產(chǎn)品橫空出世，QT450球墨法蘭橡膠伸縮節(jié)已經(jīng)悄然上市。
天然橡膠的化學(xué)特性。因?yàn)橛胁伙柡碗p鍵，所以天然橡膠是一種化學(xué)反應(yīng)能力較強(qiáng)的物質(zhì)，光、熱、臭氧、輻射、屈撓變形和銅、錳等金屬都能促進(jìn)橡膠的老化，不耐老化是天然橡膠的致命弱點(diǎn)，但是，添加了防老劑的天然橡膠，有時(shí)在陽光下曝曬兩個(gè)月依然看不出多大變化，在倉庫內(nèi)貯存三年后仍可以照常使用。
橡膠接頭一般由內(nèi)膠層、織物增強(qiáng)層（增強(qiáng)層有多層刮膠錦綸簾子布）、中膠層、外膠層、端部加固金屬環(huán)或鋼絲圈，經(jīng)高溫、高壓硫化成型后，與金屬法蘭或平行接頭松套組合而成的復(fù)合橡膠管。此產(chǎn)品利用了橡膠的高彈性、高氣性、耐介質(zhì)性、耐候性和耐輻射性等優(yōu)點(diǎn)，可降低管道的振動(dòng)及噪聲，并可對因溫度變化引起的熱脹冷縮起補(bǔ)償作用。
Shanghai Songjiang shock absorber Group Co., Ltd. introduces: the information of the DN 150 ductile flange natural rubber expansion joint. Songjiang group provides more high-quality products for many customers, continuously develops new products, and constantly walks in the forefront of the industry. Another new product is coming out. QT450 ductile flange rubber expansion joint has been quietly listed.
Chemical properties of natural rubber. Natural rubber is a kind of material with strong chemical reaction ability because of its unsaturated double bond. Light, heat, ozone, radiation, bending deformation, copper, manganese and other metals can promote the aging of rubber. Aging resistance is the fatal weakness of natural rubber. However, natural rubber added with antioxidant can not see much change after being exposed to the sun for two months, so it is in the warehouse After storage for three years, it can still be used as usual.
The rubber expansion joint is generally composed of inner rubber layer, fabric reinforcement layer (the reinforcement layer has multi-layer scraping nylon cord fabric), middle rubber layer, outer rubber layer, end reinforcement metal ring or steel ring, which is vulcanized at high temperature and high pressure, and is combined with metal flange or parallel joint loose sleeve. This product takes advantage of the advantages of rubber such as high elasticity, high gas resistance, medium resistance, weather resistance and radiation resistance. It can reduce the vibration and noise of the pipeline and compensate the thermal expansion and cold contraction caused by temperature change.
