Production Description:

  The operation of the lifting process growth furnace uses the automatic operation mode, the seeding of the seed crystal adopts the electric up and down, the rotational speed and torque are balanced, and the lifting speed is stable 0.2mm/min. The equal diameter of the crystal and the detachment of the crystal are fully automated and unattended. Intelligent temperature control system, temperature control is stable at plus or minus 1 degree. Furnace temperature region 180mm* diameter 220m.This utility  model pertains to a device for producing various oxide artificial crystals through the direct-pulling method.The furnace body is characterized by a cylindrical vertical double-layer jacket structure with cooling water in the middle; The seed rod is connected with the motor through a flexible belt and a decelerating wheel. The manual mechanism is connected with the ball screw through the transmission rod and synchronous belt. The manual mechanism is connected with the ball screw through the transmission rod and synchronous belt. The utility model aims to provide a crystal growth furnace, which aims to solve the problems existing in the previous crystal growth furnace, such as the inability to accurately and conveniently adjust the position of the seed rod in the furnace, the crystal motor often runs at low speed, the current is large, and the furnace body is processed and manufactured complicated.

  The crystal lifting furnace adopts driving and transmission technology and supporting devices to make the rod run in balance without crawling and vibration. At the same time, the programmable furnace temperature control device is used to achieve automatic equal diameter and automatic furnace temperature control, and there is a manual rapid lifting mechanism, which is an ideal equipment for the growth of 2 inches to 4 inches of PPLN(LiNbO3) and other oxide crystal growth below 1500℃.

Main Technical Data:

　　1.Electrical control part, the control box is 19 "-3U standard control box. Seed transmission part, transmission system: lifting, rotating stepper motor and drive each set. One control card. Position limit function, using ball screw, pitch 5 mm.Lift stroke　480 mm
　　2.Water cooling system, according to customer requirements in the furnace shell to add a water circulation system, increase the overall furnace cooling speed, furnace shell surface temperature of about 30 degrees, and improve the safety of the operator.
　　3.Thermal insulation furnace body, the furnace adopts imported alumina poly-crystalline fiber material, long-term use will not have cracking phenomenon and the entire furnace environment clean. Can withstand 2200 degrees high temperature.
　　4.Crystal furnaces and lifting devices: The crystal furnaces themselves are designed for 1.5- 5.5 inch crystal growth. For the crystal furnace, the furnace temperature can be up to 400 mm in diameter and 450 mm in height. It can work under low vacuum and gas protection or flow protection gas.