Method for injection moulding an external housing of an object, object and apparatus for injection moulding

A method for injection moulding an external housing of an object provided with a mounting through hole, in particular a high temperature or harsh environment RFID tag or wireless device, said object comprising an electronic assembly provided with a further mounting through hole;

• said method comprising the steps of:
• interposing said electronic assembly between a first half-mould and a second half-mould of an open injection mould;
• closing said first half-mould and said second half-mould to define an injection cavity of a mould, containing said assembly;
• and
• injecting plastics in said cavity wherein said interposing step comprises positioning said assembly on movable support means in an extended position, said support means being associated with said mould, the method further comprising the step of disengaging said support means from said assembly before said plastics are cured such as to manufacture said external housing in only a one shot manufacturing process, plastics of said external housing being integrally moulded and devoid of discontinuity points, wherein the method further comprises:
• providing an injection nozzle on a protrusion of a half-mould facing a further protrusion provided on the other half-mould and defining an injection sprue volume therebetween;
• and
• positioning said injection sprue volume inside said further mounting through hole for injecting said plastics from said injection sprue volume towards said first half-mould and said second half-mould at the same time, such that said further mounting through hole is encapsulated with plastics, thus creating said mounting through hole during injection.