| abstract |
The invention provides a molding method for producing a screw drilling tool stator with an elastomer material, comprising the following steps: S1, sequentially roughening, cleaning and drying the inner surface of the stator tube; mixing the adhesive and the diluent, and then applying Cover the inner surface of the dried stator tube, and use it after heating; S2. Coat the mold release agent evenly on the surface of the mandrel mold, heat or dry it naturally for use; S3. Combine the treated stator tube with the processed The mandrel mold is assembled to obtain a combined mold; S4, the prepolymer and the defoaming agent are uniformly mixed and then subjected to negative pressure vacuum defoaming treatment; S5, the defoamed prepolymer and the curing agent are uniformly mixed, and the obtained mixed solution It is poured into the composite mold in step S3, sealed, heated and solidified in stages; after the solidification is completed, it is cooled, and the mandrel mold is pulled out. Through the process of the present invention, a screw drilling tool stator with excellent properties such as hardness, tear strength, tensile strength, elongation at break, permanent deformation rate and the like can be obtained. |