Adjusting the finished cone with a dial gauge

The most common method of machining a conical surface on a lathe is to turn the small slide method, that is, to turn the small slide to an angle of α to the centerline of the workpiece, and to make the small slide obliquely out of the cone. Because the scale value of the small skateboard rotation on the lathe is generally only half a degree, the accuracy of the actual requirement greatly exceeds the indexing accuracy of the small slide of the lathe. Usually after the first conical surface of the turned part, before the size is not up to the requirement, the conical surface is repeatedly inspected with a conical plug gauge or ring gauge and other measuring tools. It takes time and labor to reach the accuracy requirement. Therefore we have adopted the figure. 1. The dial gauge adjustment angle of the device shown in Fig. 2 is higher than 1'.

Saliva Antigen Test

The COVID-19 Antigen Saliva Test kit is a lateral flow immunoassay intended for the preliminary screening and qualitative detection of nucleocapsid protein antigen from severe acuterespiratorysyndrome coronavirus SARS-CoV-2which causesthe Coronavirusdisease(COVID-19),in direct saliva sample from individuals suspected of coVD-19 by their healthcare provider within the first seven days of symptom onset.The COVID-19 Antigen Saliva Test kit is for professional use only and is intended to be used as an aid in the diagnosis of SARS CoV-2 infection.
SARS-CoV-2is anenvelopedsingle-stranded RNAvirus ofthe Baenus COVD-19 is an acute respiratory infectious disease. People are generally susceptible.Currently. the patients infected bytheSARS-CoV2are the main source ofinfection:asvmptomatic infected peope car also be an infectious source Based on thecurrentepidemiologica investigation, the incubation period is 1to 14 daysmostly 3to 7 days The main manifestations include feverfatigue and drycough.Nasa congestion, runny nosesore throatmyalgia and diarhea are found in a few cases.
Results are for the identification of SARS-CoV-2 nuceocapsid protein antigen. The SARS-CoV-2 antigen is generally detectable in upper respiratory specimens during the acute phase ofinfectionPositive results indicate the presence of SARS-CoV-2viralantigenshowever cinicai corelation with patient history and other diaanostic information is key to determine status of infection.Positive results don't preclude bacterialinfection or co-infection with other yiruses.eaatveresuts To patients with symptom onset for more than seven days should be treated as presumptive and confirmation with a molecular assayand patient management may be performed according to local regulations as needed.

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