Quartz glass single hole nozzle for feeding fluid and quartz glass multihole burner head for feeding fluid

Abstract

The present invention provides a quartz glass single hole nozzle for feeding fluid capable of performing high-precision control of a flow rate, a burner for heat processing equipped with the quartz glass single hole nozzle, a quartz glass multihole burner head for feeding fluid preferably used in flame processing or the like, and a quartz glass burner for heat processing equipped with the multihole burner. By using the nozzle, even if a distal end portion of the quartz glass burner, namely the nozzle is broken by contact with a workpiece or the like, it is enough to only replace the broken nozzle with a new one without a necessity for replacing the entire expensive quartz glass burner. When applying the nozzle to a metal burner, there can be given usefulness of the quartz glass such as heat resistance and contamination resistance or the like. The quartz glass single hole nozzle for feeding fluid according to the present invention comprises: a nozzle body portion made of a quartz glass material; and an attaching portion provided at the proximal end of the nozzle body portion, wherein a fluid feed path is bored in the interior of the nozzle body portion and the attaching portion of the nozzle body portion is detachably attachable to the distal end of a burner body for heat processing.

1 . A quartz glass single hole nozzle for feeding fluid comprising: a nozzle body portion made of a quartz glass material; and an attaching portion provided at the proximal end of the nozzle body portion, wherein a fluid feed path is a single bore extending along a longitudinal axis and formed in the interior of the nozzle body portion and the attaching portion of the nozzle body portion with the attaching portion being threadably attachable and threadably detachable to a distal end of a burner body for heat processing, 
 wherein the attaching portion is cylindrically shaped and the nozzle body portion is conically shaped and connected to the attaching portion as an integral construction such that the nozzle body portion tapers from the attaching portion as the nozzle body portion extends longitudinally,    wherein the attaching portion extends along the longitudinal axis at a first length and the nozzle body portion extends along the longitudinal axis at a second length being at least twice as long as the first length,    wherein the quartz glass material is a synthetic quartz glass material,    wherein the attaching portion is provided with an external thread or an internal thread and the attaching portion of the nozzle body portion is detachably attachable to the distal end of the burner body for heat processing and    wherein the single hole has a first hole portion and a second hole portion in direct communication with the first hole portion, the first hole portion having a first hole portion diameter and extending along the first length of the attaching portion and the second hole portion having a second hole portion diameter smaller than the first hole portion diameter and extending along the second length of the nozzle body portion.    
   
   
       2 . (canceled)  
   
   
       3 . (canceled)  
   
   
       4 . A quartz glass burner for heat processing comprising: a burner body portion; a burner head portion provided at the distal end of the burner body portion, wherein the quartz glass single hole nozzle for feeding fluid according to  claim 1  is attached to the burner head portion.  
   
   
       5 . A metal or ceramic burner for heat processing comprising: a burner body portion; and a burner head portion provided at the distal end of the burner body portion, wherein the quartz glass single hole nozzle for feeding fluid according to  claim 1  is attached to the burner head portion.  
   
   
       6 . A quartz glass burner for heat processing comprising: a burner body portion; a burner head portion provided at the distal end of the burner body portion; and a single hole nozzle having an attaching portion and a nozzle body portion in an interior of which a fluid feed path is a single bore extending along a longitudinal axis, wherein the single hole nozzle is threadably attachable and threadably detachable to the distal end of the burner head portion at the attaching portion, 
 wherein the attaching portion is cylindrically shaped and the nozzle body portion is conically shaped and connected to the attaching portion as an integral construction such that the nozzle body portion tapers from the attaching portion as the nozzle body portion extends longitudinally,    wherein the attaching portion extends along the longitudinal axis at a first length and the nozzle body portion extends along the longitudinal axis at a second length being at least twice as long as the first length, and    wherein the single hole has a first hole portion and a second hole portion in direct communication with the first hole portion, the first hole portion having a first hole portion diameter and extending along the first length of the attaching portion and the second hole portion having a second hole portion diameter smaller than the first hole portion diameter and extending along the second length of the nozzle body portion.    
   
   
       7 . The quartz glass burner for heat processing according to  claim 4 , wherein the burner head portion is bent.  
   
   
       8 . The metal or ceramic burner for heat processing according to  claim 5 , wherein the burner head portion is bent.  
   
   
       9 . The quartz glass burner for heat processing according to  claim 6 , wherein the burner head portion is bent.  
   
   
       10 . A hand burner made of the burner for heat processing according to  claim 4 , which an operator can operate by hand.  
   
   
       11 . A hand burner made of the burner for heat processing according to  claim 5 , which an operator can operate by hand.  
   
   
       12 . A hand burner made of the burner for heat processing according to  claim 6 , which an operator can operate by hand.