Sand feeding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank

Abstract

The invention discloses a sand feeding method for an inner hole of a cylindrical head disc-shaped suspension type porcelain insulator blank, and belongs to the field of cylindrical head disc-shaped suspension type porcelain insulator treatment.The sand feeding method comprises the following steps that S1, the blank is placed, and an opening of the inner hole of the blank faces downwards; s2, a sponge roller bonded with sand-burnt glaze glue extends into the inner hole of the blank, the blank and the sponge roller rotate relatively, and the inner hole of the blank is coated with a sand-burnt glaze glue layer; s3, a sand blowing pipe extends into the inner hole of the blank, glaze-wrapped sand is blown into the sand blowing pipe, and a glaze-wrapped sand layer adheres to the sand-burnt glaze glue layer; the invention provides a sand feeding method for an inner hole of a cylindrical head disc-shaped suspension porcelain insulator blank, which comprises the following steps of: extending a sponge roller into the inner hole of the inverted blank, uniformly smearing sand-burning glaze glue on the wall surface of the inner hole of the blank, spraying glaze-wrapped sand, sintering, sintering porcelain sand to the side wall of the inner hole of the porcelain after sintering, and generating no porcelain sand at the end part of the inner hole, and the distribution uniformity of the electric field at the head of the porcelain piece is not influenced.

Description

technical field [0001] The invention relates to the field of processing cylindrical-head disc-shaped suspended porcelain insulators, in particular to a sanding method for inner holes of cylindrical-head-disk-shaped suspended porcelain insulator blanks. Background technique [0002] The advantage of cylindrical head suspension porcelain insulators is that compared with products of the same level with cone heads, the size of the head of the porcelain part is smaller, and the iron cap assembled with it will be smaller, so the consumption of raw materials is less than that of cone head products, and the cost is relatively It is relatively low, and it is convenient for automatic production; the disadvantage is that the cylindrical head design makes the product in order to ensure good tensile mechanical properties, not only glazing treatment, but also sanding treatment is required during the manufacture of the porcelain head to make it It has a higher coefficient of friction, so o...

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Problems solved by technology

like image 3 As shown, after firing, the porcelain sand will be sintered to the end of the inner hole of the porcelain part and the side wall of the inner hole. Since the porcelain sand at the end of the inner hole will have an adverse effect on the uniformity of the electric field distribution on the head of the porcelain part, this phenomenon It is not expected to happen, but this operation is an unavoidable phenomenon of manual sanding at present, so it needs to be improved

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