Nonmetal filling medium for producing piping branch junctions and technique for squeezing the piping branch junctions

The invention relates to a non-metal filling medium used for fabricating a three-way pipeline and a process for extruding the three-way pipeline. The filling medium is a non-metal power material which is uniformly mixed and consists of three powders: talcum powders H2Mg3(sio3)4, industrial salts NaCl and urease (NH4)2CO; the three powders are uniformly mixed respectively according to the mass proportion of 5-25%, 95-50% and 0-25%. The extrusion material range of the three-way pipeline of the invention is multiple high-plastic materials such as copper, iron, low carbon steel and cold extrusion stainless steel, etc.; therefore, the three-way pipeline can extrude and fabricate copper three-way pipeline, iron three-way pipeline, low carbon steel three-way pipeline and stainless steel three-way pipeline, etc. The non-metal filling medium and the process of the invention have obvious technical advantages of meeting the instruction requirement which is issued by European, Japan, etc. and contains that lead is not allowed to be added in the three-way pipeline production process, thereby completely avoiding the pollution of heavy metals such as lead, etc., having lower cost than the lead-pouring extrusion, having longer length and higher working efficiency than the oil (water) injection extrusion, and enlarging the ranging of extrusion material to the fields of multiple high-plastic material such as copper, iron, low carbon steel and stainless, etc.