| 摘要 |
<p>Apparatus (101) for producing material by a chemical reaction between a first chemical reagent and a second chemical reagent. The apparatus comprises a chemical mixing arrangement; a dispensing chamber (317); a dispensing piston (312) configured to dispense reacting mixture from said dispensing chamber; and a control means (501) for controlling the movement of said dispensing piston and for controlling operation of the chemical mixing arrangement. The chemical mixing arrangement has a mixing chamber (305) and injection means (306) configured to produce a jet of a first chemical reagent and a jet of a second chemical reagent such that said jets collide within said mixing chamber to produce reacting mixture. The dispensing chamber (317) has an inlet for receiving the reacting mixture from the mixing chamber and an outlet (319) for dispensing the reacting mixture. The control means (501) is arranged to co-ordinate movement of the dispensing piston with the operation of the chemical mixing arrangement such that the chemical mixing arrangement is caused to mix the chemical reagents while the dispensing piston is caused to move at a controlled rate.</p> |
