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产品目录

    海藻酸盐(钠、钾、钙),海藻酸丙二醇酯,甘露醇碘,卡接胶,琼脂,海藻粉。
    瓜尔豆胶,魔芋胶,变性淀粉钠。
    变性瓜尔胶,罗望子胶,变性罗望子胶等。

本公司除上述产品外,尚提供下列服务项目:

    新产品开发:依客房需求协助研发新产品,并提供西方及制程及所需的各种添加物或香料。
    品质改善:改善既有产品品质,协助降低成本。

海藻酸盐

    焊条的制造工艺是把组成药皮熔剂的各种矿石,金属及有机物等的粉末和粘结剂水玻璃一起捏和,之后把制得的湿润材料涂在低炭钢或合金焊条上,以获得所需的涂压性能及药皮的表面张力、弹力、平滑度等。
    习惯上,焊条药皮材料的干粉与硅酸钾或硅酸钠(水玻璃)混合,水玻璃在这里是作为干燥焊条被复皮的粘结剂并湿润药皮材料,使得在挤压过程中有足够的塑性,但水玻璃本身的润滑效果不好,所以需要加入润滑剂。另一方面,水玻璃湿态粘结力也较差,所以必需加入一种粘结剂来获得足够的湿态粘结强度。海藻酸盐(钠、钾、钙),可作为有机或无机焊条药皮的增塑剂和湿态粘结剂,它具有满足以上这些需要以及焊接时容量燃烧成灰,减少飞溅的优点。
    在所有型号的焊条生产中,海藻酸盐可以粉末加入(粒度越细越好),在加水玻璃以前先把它和其它成分混合。大体上碱性焊条添加量为0.4-1.2%;酸性或有机焊条中的添加量为0.15-0.2%较为适宜。

YANTAI KELP

    Coatings are the conditions applied to weldingrods or electrodes to act as a flux and to control the condtions in the immediate vicinity of the weld, such as temperature or oxygen and hydrogen availability. The dry ingrgdiengs of the coating are mixed with sodium silicat (water glass) which gives some of the plasticity necessary for extrusion of the coating onto the rod and which also acts as the binder for the dried coating on the rod. However the wet silicate has no binding action and does not proved sufficient lubrication to allow effective and smooth extrusion. An additional lubricant is needed, and a binder which will hold the damp mass together before extrusion and maintain the shape of the coating on the rod during drying and baking. Alginates are used to meet these requirements.
    The quantities of alginates used are very dependent on the type of welding rod being coated and the extrusion equipment being used. For soluble alginates it may be 0.4-1.2% or low-hydrogen welding rods and 0.15-0.25% for acid and organigc types. For the thixotropic alginates, manufacturers often find it more effective to use a mixture of calcium alginate and sodium alginate with a total alginate content of 0.4-0.6% for low hydrogen electrodes. Alginate manufacturers are the best source of information for using alginate in welding rod applications, for example protan(1984).

海藻酸盐的质量指标

    本指标适用于电焊条涂层用海藻酸盐粉剂。
    1. 引作指标
    1.1参照上海标准件公司1980年《手工电弧焊材料技术条件》国家焊接材料质量监督检验中心《焊接材料用原材料》。

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