1, tungsten electrode graphite collapse arc method
This method is a new method for improving the shortcomings of the carbon-carbon arc method and is basically still a method of evaPoration-condensation. The block pure diamond metal (purity > 9.5%) was placed in anode graphite cruciferous, and the tungsten electrode bar was used as the cathode. The arc occurs between the tungsten electrode and the drill block, melting and evaporating the drill metal, and the graphite will also evaporate with a small portion of the molten metal due to high heat. This new method can increase the evaporation of metals and reduce excessive carbon impurities in the product.
2, experimental device
More specifically, the device was placed in a double water-cooled stainless steel vacuum chamber. The nitrogen inlet of the vacuum chamber can control the flow of nitrogen through the arc section to control the size of the resulting nanoparticle.
3, generate products
1) Graphite nanocrystalline diamond grains
Graphite-coated nanocrystalline grains belong to metal-graphite composites. The core of the drilled metal is approximately a spherical nanometer single crystal, covering approximately 8 to 10 layers of graphite. The distance between the layers is 0.34 nL. The graphite-encapsulated nanocrystal geometry may be due to different core materials or manufacturing. There are two types of spherical and polyhedral shapes due to differences in conditions. All diamond-centered diamonds are spherical, and the outer graphite layer is composed of irregularly arranged small pieces of graphite.
2) Carbon impurities
In the black nanopowder collected at the end of each experiment, in addition to the desired final product, there are a number of nanocrystal grains that are not fully coated with graphite, and a large amount of carbon impurities such as fullerenes. , graphite fibers, graphite fragments, amorphous carbon and so on. These carbon impurities will not be removed in subsequent acid-solubilization purification steps, and only the diamond metal that has not yet been protected by graphite will be rapidly dissolved. As a result, the subsequent further purification is extremely difficult. Zhang Lijuan et al. have tried to use a variety of surfactants to disperse all of the nanocrystals and carbon impurities, and then use a powerful magnet to separate the final product from carbon impurities. However, no ideal surfactant was found. Only methanol was found to have a good dispersion effect.
Marine signal lamps
CHT4 CHAT LAMP
CXD8-CDX Daylight Signal Lamp
CXH1-10B DOUBLE-DECK Starboard Light
CXH1-11P STARBOARD LIGHT
CXH1-101P DOUBLE-DECK STARBOARD LIGHT
CXH1-102P DOUBLE-DECK STARBOARD LIGHT
CXH1-102PL DOUBLE-DECK STARBOARD LIGHT
CXH2-10B DOUBLE-DECK PORT LIGHT
CXH2-11P PORT LIGHT
CXH2-101P DOUBLE-DECK PORT LIGHT
CXH2-102P DOUBLE-DECK PORT LIGHT
CXH2-102PL DOUBLE-DECK PORT LIGHT
CXH3-10B DOUBLE-DECK MASTHEAD LIGHT
CXH3-11P MASTHEAD LIGHT
CXH3-101P DOUBLE-DECK MASTHEAD LIGHT
CXH3-102P DOUBLE-DECK MASTHEAD LIGHT
CXH3-102PL DOUBLE-DECK MASTHEAD LIGHT
CXH4-10B DOUBLE-DECK STERN LIGHT
CXH4-11P STERN LIGHT
CXH4-101P DOUBLE-DECK STERN LIGHT
CXH4-102P DOUBLE-DECK STERN LIGHT
CXH4-102PL DOUBLE-DECK STERN LIGHT
CXH5-1 TOP LIGHT
CXH5-1A TOP LIGHT
CXH5-1B TTOP LIGHT
CXH6-10B DOUBLE-DECK ALL-AROUND LIGHT
CXH6-11P ALL AROUND LIGHT
CXH6-101P DOUBLE-DECK ALL-AROUND LIGHT
CXH6-102P DOUBLE-DECK ALL-AROUND LIGHT
CXH6-102PL DOUBLE-DECK ALL-AROUND LIGHT
CXH7 PANAMA STEERING LAMP
CXH8-1 Anchor LIGHT
CXH10-1 TRACK LIGHTS
CXH11 SUEZ SIGNAL LIGHT
CXH13 BOWLIGHT
CXH14 FLASHING SIGNAL LIGHT
CXH17 SIGNAL LIGHT
JJD1-1 ROTATION WARNING LIGHT
Fluorescent lamp
CBD1 Wall lamp
CBD2-N Wall lamp
CBD5 Wall lamp
CBD6 All lamp
CBD17-A,CBD17-B Fluorescent mirror light
CBD17-C,CBD17-EB Fluorescent mirror light
CBD17-D,CBD17-F B Fluorescent mirror light
CKS2 Bedside lamp
CKS3 Bedside lamp
CKS21 Bedside lamp
CKS21-A Bedside lamp
CPD1-1 Singal bulb ceiling light
CPD1-2 Double bulb ceiling light
CPD1-2N Double bulb ceiling light
CPD2-1 Singal bulb ceiling light
CPD30-1N Circular Fluorescent ceiling light
CTD1 Desk lamp
CTD2 Desk lamp
CTD5-N Desk lamp
CTD6 Desk lamp
CTD7 Desk lamp
HODU-8,HODU-15,HODU-20 Fluorescent mirror light
HODU-8A,HODU-15A,HODU-20A Fluorescent mirror light
HY-YJ203D Fluorescence induction lamp
HY-YJ203S Fluorescence induction lamp
HY-YJ204 Fluorescence induction lamp
HY-YJ205 Fire emergency lighting
JBY15-1,JBY15-1E,JBY20-1,JBY20-1E,JBY30-1,JBY30-1E Fluorescent walkway lights
JCY20-1,JCY40-1 Fluorescent ceiling light
JCY21-2L,JCY41-2L Fluorescent ceiling light
JCY22-2,JCY22-2E,JCY32-2,JCY32-2E,JCY42-2,JCY42-2E Fluorescent ceiling light
JCY22-2EF,JCY32-2EF,JCY42-2EF Fluorescent ceiling light
JCY23-2,JCY23-2E,JCY33-2,JCY33-2E,JCY43-2,JCY43-2E Fluorescent ceiling light
JCY23-2EF,JCY33-2EF,JCY43-2EF Fluorescent ceiling light
JCY24-2,JCY24-2E,JCY34-2,JCY34-2E,JCY44-2,JCY44-2E Fluorescent ceiling light
JCY24-2EF,JCY34-2EF,JCY44-2EF Fluorescent ceiling light
JCY25-2P,JCY25-2PE Fluorescent ceiling light
JCY26-1,JCY26-2,JCY26-2E,JCY26-2EF Fluorescent ceiling light
JCY27-1B,JCY27-2B Fluorescent ceiling light
JCY28-1,JCY28-2,JCY48-1,JCY48-2 Fluorescent ceiling light
JCY28-2B,JCY48-2B Fluorescent ceiling light
JCY28-2G,JCY48-2G Fluorescent ceiling light(With battery)
JCY202-2,JCY201-2,JCY402-2,JCY401-2 Fluorescent ceiling light(With battery)
JDY15-1 Seed light
JPY15-2,JPY15-2E,JPY30-2,JPY30-2E Fluorescent ceiling light
JPY20-2,JPY20-2E,JPY40-2,JPY40-2E Fluorescent ceiling light
JPY20-2A Fluorescent grille lamp(stainless steel)
JPY20-2B Fluorescent grille lamp
JPY20-3A Fluorescent grille lamp(stainless steel)
JPY20-3B Fluorescent grille lamp
JPY21-2N,JPY21-2EN,JPY41-2N,JPY41-2EN Fluorescent ceiling light
JPY22-2,JPY22-2E Fluorescent ceiling light
JPY23-2,JPY23-2E Fluorescent ceiling light
JPY24-1,JPY24-2 Fluorescent ceiling light
JPY25-2,JPY45-2 Fluorescent ceiling light
JPY26-2 Fluorescent ceiling light
JPY27-2L,JPY27-2EL,JPY47-2L,JPY47-2EL Fluorescent ceiling light
JPY30-2A Fluorescent grille lamp(stainless steel )
JPY40-2A Fluorescent grille lamp(stainless steel )
JPY40-2B Fluorescent grille lamp
JPY43-2,JPY43-2E Fluorescent ceiling light
JPY202-2,JPY201-2 Fluorescent ceiling light(With battery)
JTY06-1 Fluorescence bedside lamp
JTY08-1 Fluorescence bedside lamp
JTY08-1A,JTY15-1A Fluorescence bedside lamp
JTY08-1C Fluorescence bedside lamp
JXQ-1 Tube light
JXQ-2 Tube light
JXQ-3 Tube light
JXQ-4 Tube light
JXQ-5 Tube light
Project-light lamp
TG5,TG6 Signal searchlight
TG1-B Project-light lamp
TG2-B Project-light lamp
TG3-N Project-light lamp
CTG3-N Project-light lamp
TG4 Project-light lamp
TG7 Project-light lamp
TG7-A Project-light lamp
TG11 Project-light lamp
TG13 Project-light lamp
TG14-N Project-light lamp
TG15 Project-light lamp
TG17A Project-light lamp
TG19 Project-light lamp
TG26,TG27 Search light
TG28 Search light
TG26-B,TG27-B
TG28-B Search light
TZ1 Search light
TZ2 Search light
TZ3 Search light
TZ4,TZ5 Suez Canal searchlight
TG3-AN Signal light
CTG3-AN Project-light lamp
TG26-A,TG27-A Search light
TG28-A Search light
TZ1-A Search light
TZ3-A Search light
TZ2-A Search light
Explosion-proof lamp
CFD4 Incandescent explosion-proof lamp
CFD1 Incandescent explosion-proof lamp
CFB1 Explosion-proof induction lamp
CFT2 Explosion-proof project-light lamp
CFT1-N Explosion-proof project-light lamp
CFS1 Hand explosion-proof lamp
CFT3 Explosion-proof project-light lamp
CFY22-2,CFY42-2 Fluorescent explosion-proof ceiling lamp
CFY21-2,CFY41-2 Fluorescent explosion-proof ceiling lamp
CFY20-2,CFY20-1,CFY30-2,CFY30-1,CFY40-2,CFY40-1 Fluorescent explosion-proof lamp
CFD3-1 Explosion-proof lamp
CFD3 Explosion-proof lamp
CFD2 Explosion-proof lamp
Incandescent lamps
CCD1-2 Ceiling light
CCD1-2A Ceiling light all of plastic
CCD2-1-2 Ceiling light
CCD3-2 Ceiling light
CCD3-3 Ceiling light
CCD4-1 Ceiling light
CCD5-2 Ceiling light
CCD5-2B Ceiling light
CCD6-2 Ceiling light
CCD6-2B Ceiling light
CCD7 Ceiling light
CCD8-L Ceiling light
CCD9-2-2N Ceiling light
CCD9-3-2N Ceiling light
CCD9-5,CCD9-5A Ceiling light
CCD9-6,CCD9-6A Ceiling light
CCD11-A Ceiling light
CCD11-B Ceiling light
CCD13 Underwater light
CCD15-2 Ceiling light
CGD1 High power lights
CGD2 Warehouse light
CGD3-2 Warehouse light
CSD1 Hand lamp
CSD2 Hand lamp
CSD3 Hand lamp
CSD6 Hand lamp
CSD7 Hand lamp
CSD8 Hand lamp
DS7-1M Working light
DS7-2M Working light
DS7-2M-A Working light
DS7-3M Working light
DS7-4M Working light
W Working light
WB-1 Wall lamp
WB-2 Wall lamp
WB-2A Wall lamp
WB-2B Wall lamp
Starboard Light, Marine Flood Light, Daylight Signal Lamp, Marine Explosion Lamp
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