Recently,?after?strict?initial?and?final?factory?inspections,?repeated?comparisons?of?processes?and?
parameters,?and?on-site?testing,?as?well?as?careful?screening?of?cost-effectiveness,?service?simplicity,?and?overall?service?process?feasibility,?combined?with?the?evaluation?
of?sample?usage?on?site,?the?industrial?UPS?solution?customized?by?Netion?has?successfully?served?a
?manufacturing?base?in?a?certain?aerospace?department.?With?the?formal?use?of?batches?of?customized
?equipment,?Netion?CPG?series?300-600kVA?industrial?UPS?will?provide?reliable?power?guarantee?for
?its?precision?equipment?and?instruments,?ensuring?the?long-term?stable?operation?of?its?precision?
manufacturing?equipment.?Netion?has?been?focusing?on?the?
fields?of?power?supply,?power?electronics,?and?new?energy?power?conversion?for?nearly?30?years,?and?
will?take?this?as?an?opportunity?to?contribute?to?the?rise?of?China's?high-end?manufacturing?industry?
to?the?best?of?its?ability.
The?shell?of?a?rocket?engine?is?also?a?missile?shell,?and?its?working?environment?is?extremely?harsh,?
including?high?temperatures?generated?by?engine?operation,?airflow?impacts?generated?by?high-speed?flight,?temperature?fluctuations,?and?attacks?from?enemy?anti?missile?interception?weapons.?
Therefore,?it?is?required?that?the?engine?housing?has?good?performance?in?high?temperature?resistance,
?corrosion?resistance,?high?strength,?impact?resistance,?and?other?aspects.
Early?rocket?engines?often?used?metal?shells,?such?as?ultra-high?strength?steel,?titanium?alloys,?etc.?However,?the?heavy?weight?of?metal?materials?affected?the?
range?and?load,?so?the?development?trend?of?rocket?engine?shells?is?to?use?high-strength?non-metallic
?materials.
At?first,?glass?fiber,?aramid,?graphite,?and?other?materials?were?mainly?used.?Under?the?same?size,?the?
weight?of?the?engine?housing?can?be?reduced?by?about?50%,?and?the?weight?of?strategic?missile?
throwing?can?be?increased?by?more?than?twice.?It?can?be?said?that?the?effect?is?very?significant.
However,?these?materials?still?have?certain?defects?in?strength,?stiffness,?and?other?aspects.?Therefore,?
after?the?1980s,?carbon?fiber?began?to?be?used?in?solid?engine?casings.
Compared?with?aramid,?carbon?fiber?can?increase?stiffness?and?strength?by?80%?and?30%,?respectively,
?while?reducing?the?weight?of?the?shell?by?another?40%.?In?addition,?carbon?fiber?shell?has?a?smaller
?coefficient?of?thermal?expansion,?ensuring?stable?dimensions?during?engine?operation?and?improving?
engine?reliability.
Compared?with?the?process?of?manufacturing?rocket?engine?shells?using?metal?materials,?although?
the?new?material?has?a?soft?texture,?the?strength?and?toughness?of?the?rocket?engine?shell?produced?
are?not?low,?several?times?that?of?metal,?and?can?withstand?extreme?conditions?such?as?high?
temperatures?generated?during?rocket?flight.
In?the?new?century,?with?the?rapid?development?of?domestic?carbon?fiber?level,?T800?grade?carbon?
fiber?has?achieved?a?production?capacity?of?1000?tons,?and?T1000?has?also?reached?100?tons.
With?the?successful?development?of?M60J?carbon?fiber?in?China,?it?indicates?that?domestic?carbon
?fiber?has?achieved?breakthroughs?in?three?important?directions?(high?strength?and?high?modulus,
?high?strength,?and?high?modulus),?laying?a?solid?foundation?for?the?application?of?carbon?fiber?in
?domestic?missiles?and?launch?vehicles.
The?domestically?produced?200?ton?thrust?solid?rocket?engine?adopts?multiple?advanced?technologies,?
among?which?one?is?the?most?remarkable,?which?is?the?technology?of?large-diameter?carbon?fiber?wrapped?composite?shell,?marking?that?China?has?mastered?the?technology?of?
carbon?fiber?wrapped?composite?shell?for?large?solid?rocket?engines.
A?black?carbon?fiber?"bundle"?with?a?width?of?about?1?centimeter?is?stacked?and?wrapped?layer?by?
layer?on?a?specific?device,?and?impregnated?with?special?resin.?After?high-temperature?curing,?advanced?heat?treatment?and?surface?treatment?techniques?are?used?to?improve?
the?high?temperature?resistance?and?oxidation?resistance?of?the?carbon?fiber?shell,?and?the?shell?of?
the?rocket?engine?is?preliminarily?formed.
Using?precision?winding?CNC?machines?to?strictly?control?the?winding?speed?and?tension?of?carbon
?fibers,?ensuring?that?each?layer?of?carbon?fibers?is?tightly?adhered?to?form?a?sturdy?shell.
Highlights?of?this?case's?configuration:
The?input?and?output?are?fully?isolated,?and?the?problems?of?sudden?load,?interference,?and?zero?
ground?are?fundamentally?solved.?At?the?same?time,?the?safety?of?equipment?and?personnel?is?also?
guaranteed?at?a?high?level.
Strong?impact?resistance?and?strong?adaptability?to?inductive?loads?that?repeatedly?start?and?stop.
The?overload?capacity?has?been?significantly?improved,?running?at?200%?load?for?10?minutes.
The?protection?level?reaches?IP54,?with?super?strong?environmental?adaptability,?such?as?high?
temperature?(below?65?℃),?high?humidity,?dust,?vibration,?etc.
Internal?components?are?dust-proof?treated,?and?a?three?proof?paint?process?is?used?to?prevent?acid
?and?alkali?corrosion,?improving?product?reliability.
All?internal?components?have?undergone?special?anti?grease?treatment,?further?improving?their
?adaptability?to?the?on-site?environment.
Modular?structure,?with?components?placed?in?sealed?devices?for?easy?and?quick?maintenance.
After?authorization,?multiple?parameters?are?adjustable?and?highly?controllable.
●?Adjustable?speed?intelligent?fan,?with?high?air?volume?and?natural?wind?speed,?easy?to?replace.
Perfect?high-frequency?mute?technology,?worry?free?working?environment.
The?input?power?factor?is?as?high?as?95%,?which?is?energy-saving?and?efficient,?greatly?saving?users'?
usage?costs.
Ultra?high?precision?output:?rated?value?accuracy?＜?±?0.5V;?The?instantaneous?change?value?of?
equipment?start?stop?is?less?than?±?2V,?and?the?response?recovery?time?is?less?than?2ms.
Copyright ? 2022
