[China Aluminum Network] Hobson's processing method belongs to a method of chemical etching of extrusion dies. It is a new model-making process invented by Hobson Co., Ltd. of France. The aim is to simplify the calculation and processing of molds in traditional processes. The difficulty of the belt is to inject a plastic ideal material into the mold hole in a controlled state to determine the shape and length of the working belt required for the mold hole.
Hobson method features:
(1) The determination of the working belt length of the extrusion die hole is very reasonable, especially for unequal-walled complex sections, the irrational phenomena caused by the traditional method design and processing can be overcome, and the working shape and length of the porous die can be overcome. And the accuracy of processing accuracy is also guaranteed.
(2) The chemical etching method is used to process the die hole outlet belt, which is economical and reasonable, easy to operate, high in productivity, and easy to realize automatic operation.
(3) The purification process and the work belt polishing process can be performed at the same time, which reduces the number of processes, saves energy, and reduces costs.
(4) The extrusion die processing work belt does not generate stress, and the ideal smooth transition can be achieved at the change of the working belt length without sharp corners, inflection points and stress concentration.
(5) The working belt does not have mechanical processing streaks, which not only improves the fluidity of the metal, but also greatly reduces the surface roughness of the product, and can improve the quality of the aluminum surface treatment.
(6) As long as the deviation is accurately estimated, the mold processed by this method does not require repair.
Hobson method process flow:
Mold blank machining → Quenching and tempering → Wire cutting die hole “Paint protection layer†Fill the die hole with a plastic medium to elevate and corrode the outlet belt, remove the protective layer and polish the die hole work belt.
Chemical Hydraulic Diaphragm Metering Pump
Chemical Hydraulic Diaphragm Metering Pump(chemical metering pump)
* Suggested liquid temperature range: -30℃ --- 100℃
* Adjust the stroke length to effect the flow rate
* Pump color: Green
* Double or triple pump heads is available.
* Hydraulic actuated Diaphragm Metering Pump, no leakage.
* The flow can be adjusted from 0-100% while it's running or stopped.
*With the design of inner changeable release safety valve and limited auto-compensation valve.
* Diaphragm material: PTFE
* Both manual control and digital control for 4-20mA is available.
* Double diaphragm design with diaphragm rupture alarm system.
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