Constant backpressure and proportion controlled sinter apparatus HAGC System

Abstract

The invention discloses a hydraulic press-down system of fusion pressure with constant back pressure and proportional control in the hydraulic mechanic technique domain, which comprises the following parts: press-down device, electric control part, oil source part, safe protection and stabilized voltage part, proportional control part and movement conversion part, wherein one outlet of oil source part connects two hydraulic cylinder cavities of press-down device through safe protection and stabilized voltage part and movement conversion part separately; the other outlet of oil source part connects hydraulic cylinder non-rod cavity of press-down device through safe protection and stabilized voltage part, proportional control part and movement conversion part separately; the oil return hole and oil drain hole connect the oil tank of oil source part separately; the oil source part, proportional control part and movement conversion part control the whole system operation through electric control part separately. The invention can press downward force for model from zero, which realizes real-time precise trace of preset curve.

Description

technical field [0001] The invention belongs to the technical field of hydraulic machinery, and in particular relates to a constant back pressure and proportional control hydraulic pressing system for melting and pressing equipment, which is used in the melting and pressing equipment for manufacturing FOP and MCP. technical background [0002] Optical fiber panel FOP (referred to as fiber optic plate, Fiber Optic Plate-FOP) is a rigid optical fiber component made of many regularly arranged optical fibers after heating and melting. It has good light-collecting performance, high resolution, It can transmit images without distortion, and is widely used in the input and output screens of various electronic optical devices; Microchannel Plate-MCP (Microchannel Plate-MCP) is a two-dimensional optoelectronic amplification imaging component, which is composed of millions of channels A parallel array of electron multipliers, which has the advantages of high gain, low noise, and high ...

AI Technical Summary

Problems solved by technology

The following problems exist in the mechanical melting and pressing equipment: 1. Unable to control the low pressure in the initial section: the mechanical melting and pressing equipment adopts a vertical structure. All the weight is added to the billet, and the degree of depression of the handle by the operator further affects the pressure in the low-pressure section, resulting in excessive pressure at the moment of contact between the indenter and the billet, and the initial pressure cannot be controlled

2. Low control accuracy and repeatability: Mechanical pressurization is repetitive labor. First, it requires operators to be of high quality and to be able to strictly abide by the requirements of pressurization time. The readings are accurate, and the degree of depression of the handle is required to be very precise.

Because the gas fusion pressing process has high requirements on the vacuum degree, the cost of the gas fusion pressing process is very high under the existing vacuum technology level, so the gas fusion pressing process technology at home and abroad is not as mature as the mechanical fusion pressing process technology

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