摘要:
Thermoplastic wet insulation field joints for pipelines in bodies of water utilize the fast gelling nature of thermosetting systems, or other suitable fillers, coupled with a fully fused thermoplastic outer sheath for protecting the pipe joint from water contact. The outer sheath is fully fused circumferentially to the parent coating at each end of the field joint, and an outer closure patch is then fused to the sheath over the joining area and/or injection ports. This totally seals the filler material from direct contact with water, preventing water ingress from reaching the pipe surface. Hydrolysis of the infill material is thus also prevented. By use of a fast setting or solid infill material the system gains sufficient strength almost immediately to withstand the rigors of handling during the lay operation.
摘要:
Apparatus for the mechanized replacement of the sealing and cutting modules in the sealing station of machines for the packaging of products in trays, with said station comprising a lower mold with seats for the support of the edges of the trays with product and that by way of motion means is cyclically raised and lowered vertically with respect to an upper mold which supports in the lower part said modules by way of hooking and releasing means so that said modules can be removed and replaced in a selective manner, characterized in that said hooking and releasing means of the modules are provided between the upper plate of each module and the respective hooking plate of the upper mold, with complementary mechanical engaging means of such a kind and oriented so as to be coupled and uncoupled individually and/or simultaneously, imparting to each said module an approaching and separating vertical movement with respect to said hooking plate of the upper mold.
摘要:
Apparatus for the mechanized replacement of the sealing and cutting modules in the sealing station of machines for the packaging of products in trays, with said station comprising a lower mold with seats for the support of the edges of the trays with product and that by way of motion means is cyclically raised and lowered vertically with respect to an upper mold which supports in the lower part said modules by way of hooking and releasing means so that said modules can be removed and replaced in a selective manner, characterized in that said hooking and releasing means of the modules are provided between the upper plate of each module and the respective hooking plate of the upper mold, with complementary mechanical engaging means of such a kind and oriented so as to be coupled and uncoupled individually and/or simultaneously, imparting to each said module an approaching and separating vertical movement with respect to said hooking plate of the upper mold.