1. Blemish of cut of high-pressured water efflux and prevent (1) the reason with cut undesirable quality and measure fall in regular cut circumstance, cut of high-pressured water efflux has good cut quality, the quality level that its can reach sees a table 1. The quality standard that expresses cut of efflux of water of 1 high pressure is operated undeserved or equipment occurrence malfunction can affect cut quality, flaw of common cut of high-pressured water efflux basically has: Sunken shoulder of upper edge of ① cut face (assume round role namely) ; ② cut face tilts; ③ cut width is big; ④ cut submits asymmetry form; ⑤ cut surface is rough; ⑥ breach. Express blemish of cut of efflux of water of 2 listed high pressure to reach its reason and eliminate step. Express blemish of cut of efflux of water of 2 high pressure to reach its reason and eliminate upper edge of cut of measure of account of measure cut blemish to show round horn nozzle to slant to reduce nozzle height nozzle to wear away greatly highly change combination of nozzle of new spray head is undeserved adjust nozzle to combine abrasive to supply has measured big examination and reduce abrasive supply to estimate cut range, spray head is good, especially the circularity of nozzle has very big effect to bad of cut quality actor. Express the differentiate with 3 listed nozzle and abrasive whether good spray head, reason to reach improve measure. When using high-pressured water efflux to have cut, want parameter of nozzle etc cut to choose only proper, undertake be mixinged correctly to cut device seasonable care and maintenance, afore-mentioned cut flaw can be eliminated. (2) common breakdown and a few trouble can be encountered sometimes in eliminating process of cut of efflux of water of measure high pressure, affect the on the rails of cut and treatment quality. The breakdown that expresses 4 listed operations to see constantly, reason and eliminate step. The breakdown that expresses operation of cut of efflux of water of 4 high pressure to see constantly, reason and eliminate efflux of pure water of measure of measure breakdown account water to be an eyewinker to jam without transparent division spray head clean nozzle nozzle to wear away change nozzle adds abrasive water efflux to diffuse abrasive supply quantity reduces abrasive too much. The cut operation with the day-to-day to going on wheels care and maintenance that equipment of cut of high-pressured water efflux maintains facility, raise equipment movement rate and treatment quality to have very big effect, also be to assure what what need to handle personnel security at the same time. (1) the overhauls equipment of cut of efflux of water of project high pressure overhaul of cut equipment is divided normally overhaul 3 sort for daily overhaul, quarter overhaul and year model. Necessary overhaul undertakes to equipment before 1) overhauls daily overhaul to show in cut the operation begins daily, main item has: The sound of movement of water pump of ① high pressure is normal; Water pump of ② high pressure, harbour is pressed implement reach high-pressured conduit road to have without slack (include high-pressured canal to have deny deterioration and damaged) ; ③ oil capacity and oil are lukewarm (measure when supercharger works) ; ④ has appearance of the oil that do not have leakage; ⑤ nozzle place has without slack (include eject Kong Youmo slack phenomenon) ; Configuration of efflux of water of ⑥ high pressure and sound. 2) quarter overhauls every 3 months to answer cut equipment to make the overhaul, main item has: ① is cleaned and change all sorts of filter; The pollution of oil of ② inspection job is spent and characteristic value is good, be like abnormal, change new oil; ③ examination tube has deny happen flabby or since beat; Nozzle of water of examination high pressure has ④ not to have attachment or be injured, make the overhaul or change. The range that year of 3) year overhaul overhauls is bigger, the project is more also, main item has: The rustily state of the surface inside ① gasoline tank; The deterioration degree of ② job oil; ③ changes aerate component; The contaminative state of ④ oily condenser; The condition of the interface of heart of a powerful person of ⑤ one-way a powerful person and valve base; The piston leakage oily state of generator of water of ⑥ high pressure; Of ⑦ piston lever wear away and injure a state; The scathing state of the face inside crock of ⑧ high pressure. Before undertaking maintenance reaching the overhaul to cut equipment, maintenance technician should be read in detail and consult the maintenance in equipment manufacturer operation instruction handbook protects content. Additional, need to dismantle equipment solution when undertaking year is overhauled especially, answer to be undertaken by the personnel that has technical knowledge and technical ability, the member that had better ask equipment manufacturer to send is assisted or entrust equipment manufacturer to undertake the overhaul. (2) unusual situation reachs the equipment that middling sees eliminate measure to express the 5 equipment that in listing water efflux equipment to overhaul, often appear unusual appearance, reason and eliminate step. Express equipment of 5 water efflux common and unusual appearance, reason and eliminate step sound of water pump of high pressure of measure of unusual appearance account is unusual forgot to open water entrance water supply a powerful person completely bolt of each part close solid becomes loose to screw bolt piston changes water of irregular high pressure one-way a powerful person, if screw afresh hind still slack, watertight of high pressure of nap pedestal face seals injury to change oily connect of leakage of place of pipeline of sealed oil pressure becomes loose to screw sealed injury changes afresh sealed job oily temperature lifts did not connect water cooler loss of efficiency to tear open Jie Qing to oily condenser water supply: ① screws when need the connect of slack place in order to remove slack trouble when, the moment of force that should notice to screw must not provide a value more than; Of device of cut of efflux of water of ② high pressure tear open solution to reach repair need to have technical knowledge and special technical ability, general staff cannot tear open solution casually, lest produce an accident. 3. The issue of main and safe technology when the cut of efflux of water of high pressure of safety in operation of cut of high-pressured water efflux is to prevent high-pressured water efflux to reach its to splatter the concussion of drip, noise and get an electric shock etc. (1) the harm of high-pressured water efflux to human body and prevent high-pressured water efflux to have very big wallop, direct eject causes very great harm to human body admiral. Even if use water efflux to undertake rinse or coming off machining, the water efflux that pressure controls for 25MPa also can perforative human body; And the water pressure that cut treatment uses is as high as 196 ～ 294MPa, efflux of water of this kind of high pressure cuts off person character very easily. Additional, if recoil flies,come loose the sweat that give shoots person key point, also can make the eye is injured. Accordingly, must prevent high-pressured water to shoot eject to arrive on human body, can take the following safety precaution: ① is in of area of cut of high-pressured water efflux all round should install segregation screen, suffer ejective water efflux in order to prevent the human body in treatment process to reach fly the drip that come loose pounds action; ② is checked or change when cut nozzle, must release the pressure of high-pressured water to degree of safety, cannot undertake operating otherwise, lest produce an accident; ③ operates personnel to want Dai Fang to protect lens at least, best Dai Fang protects face guard. (2) when noise reachs his to prevent high-pressured water efflux to machine, the velocity of flow of water efflux can amount to 100 ～ 600m/s, ejective in air meeting produces very big noise. Watch 6 list when adopting cut of efflux of water of pure water high pressure, be opposite the actual measurement result of water efflux noise. Express what 6 cut use noise of pure water efflux to determine result water opening diameter of nozzle / Mm water pressure / MPa noise / direction of DB left and right sides is rear 0. 21969891294101970.
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