氯丁橡胶棒mm

Three waterproofs are usually used in the conventional waterproofing structure of type I chloroprene rubber bar face-slab dam, i.e. plastic seam filler with cover plate protection at the surface joint, water-proofing belt at the middle of the joint and copper water-proofing at the bottom of the joint. Engineering practice shows that the middle water stop belt of this type is difficult to be closely combined with concrete in construction and often leaks; at the same time, under the action of joint displacement, the concentrated strain of the water stop belt in the joint is large, once destroyed, it will reduce the effectiveness of the water stop structure, that is, the flow water stop type is defective in structure. In view of the fact that it is difficult for the conventional central water stop zone to play its normal water stop role,

水科院在九五期间提出了一个新的止水结构型式，该型式将中部止水带提至表层，采用在趾板和面板中预埋的角钢和固定螺栓将止水带固定在缝口位置，为了适应大接缝位移，将表层止水带设计成变动能力很大的波浪形；同时为了确保止水带在大接缝张开情况下随高水压力作用，在止水带下面的缝口处设置了支撑氯丁橡胶棒，氯丁橡胶棒应确保在止水动行过程中能够留在缝口，不被压入接缝口处设置了支撑氯丁橡胶棒，氯丁橡胶棒应确保在止水动动过程中能够滞留在缝口，不被压入接缝以发挥支撑作用。氯丁橡胶棒是以氯丁橡胶为主加与各种合成橡胶为主要原料，掺加各种助剂及填充料，经塑炼、混炼、挤出成型，高温硫化，它具有耐老化、耐油、耐磨性、适用于在面板坝的理想材料。

During the Ninth Five-Year Plan period, the Chinese Academy of Water Sciences put forward a new type of water stop structure, which lifted the middle water stop belt to the surface layer, fixed the water stop belt at the seam opening position with angle steel and fixed bolts embedded in toe plate and face plate, designed the surface water stop belt as a wavy shape with great variation ability in order to adapt to the displacement of large seams, and ensured the opening of the water stop belt at large seams. Under the action of high water pressure, a supporting chloroprene rubber rod is installed at the seam under the water stop belt. The chloroprene rubber rod should be ensured to stay at the seam during the water stop operation, and the supporting chloroprene rubber rod should not be pressed into the seam. The chloroprene rubber rod should be ensured to stay at the seam during the water stop operation and not be pressed into the seam to play a supporting role. The chloroprene rubber rod is made of chloroprene rubber and synthetic rubber as the main raw materials, with various additives and fillers. It is molded, blended, extruded and vulcanized at high temperature. It has aging resistance, oil resistance, wear resistance and is suitable for the ideal material of face-slab dam.

制备硅胶辊、橡胶辊、拐杖配件时，要根据使用条件要求，选取所适合的生胶，*后配制的胶辊外层胶的各项物性还可以进一步由多种补强剂和增塑剂等来调节。下面对在胶辊上较为常用的几种橡胶的特性及其在胶辊上应用情况分别加以介绍。

When preparing silicone rubber roll, rubber roll and crutch fittings, the suitable raw rubber should be selected according to the re of using conditions. Finally, the physical properties of the outer rubber of rubber roll can be further adjusted by a variety of reinforcing agents and plasticizers. The characteristics of several rubber commonly used on cots and their application on cots are introduced respectively below.

氯丁橡胶：适用于制各软质印刷胶辊、照相凹板印刷胶辊等。胶辊成型可用模压、胶片包卷成型，缠绕成型或压出成型等方法。由于胶料的贮存稳定性差，因此在制造工艺中，应注意避免在直射阳光下停放．同时要控制胶料停放的温度条件

Chloroprene rubber: suitable for making soft printing cots, photogravure printing cots, etc. Cots can be formed by moulding, film wrapping, winding or extrusion. Due to the poor storage stability of rubber, attention should be paid to avoid parking under direct sunlight in the manufacturing process. Meanwhile, the temperature conditions of rubber parking should be controlled.

丁腈橡胶：用于制造印刷胶辊、食品工业胶辊、纺织印染胶辊、接触溶剂的软胶辊等。丁腈橡胶的耐臭氧性差，因此加工中应避免在高臭氧浓度的环境下操作。丁腈橡胶与聚氯乙烯并用，可得到具有较好的耐臭氧及耐候性的胶料。

NBR: Used for manufacturing printing cots, food industry cots, textile printing and dyeing cots, soft cots contacting solvents, etc. NBR has poor ozone resistance, so it should be avoided to operate in high ozone concentration environment. When NBR is mixed with PVC, a compound with good ozone resistance and weather resistance can be obtained.

聚氨酯橡胶：具有突出的拉伸强度、耐磨性和抗裂口特性，聚酯型聚氨酯橡胶具有对多种溶剂的良好的抗耐性。此外，胶料持续处于高温和潮湿的环境之下，也会对性能造成不利的影响。用于高速、高压下的聚氨酯胶辊，重点要改进动态脱辊问题及裂纹现象。

Polyurethane rubber: It has outstanding tensile strength, wear resistance and crack resistance. Polyester polyurethane rubber has good resistance to various solvents. In addition, the performance of the compound will be adversely affected if it is kept in a high temperature and humid environment. For polyurethane cots under high speed and high pressure, the key point is to improve the dynamic roll-off problem and crack phenomenon.

硅橡胶：耐热性达200-2度，耐化学药品侵蚀性很好，主要缺点是拉伸强度低。硅橡胶辊典型的用途有织物热定型，塑料的热定型压纹、压延，复印机的定影等。成型硅橡胶辊采用胶片包卷成型，由于强度低，操作必须小心

Silicone rubber: heat resistance up to 200 - 2 degrees, chemical resistance is very good, the main drawback is low tensile strength. Typical uses of silicone rubber rollers include heat setting of fabrics, heat setting of plastics, embossing, calendering, and fixing of photocopiers. The forming silicone rubber roll is formed by film wrapping. Due to its low strength, the operation must be careful.