Surface processing method for construction drill

Abstract

The invention discloses a surface processing method for a construction drill. The method includes the steps that (1) an oil stain removal washing agent is used for removing oil; (2) acid pickling is carried out to remove rust; (3) sand blasting is carried out; (4) rough washing is carried out through a washing agent; (5) fine washing is carried out through water to make the drill clean; (6) preheating is conducted, the cleaned drill is placed in a steel wire mesh type container, then the container is placed in a preheating furnace to dry the drill at the temperature of 160+ / -5 DEG C, and after heat preservation is carried out for five minutes, the container is cooled along with the furnace and then is taken out; (7) stove charging is carried out, the dried drill and the steel wire mesh type container are placed in a well type electric stove with a stirring fan, and an open steel bottle is placed at the bottom of the stove and contains anti-rust oil of the one-quarter normal concentration; and (8) the well type electric stove is started for heating, heat preservation is conducted for ten minutes when the temperature is increased to 240+ / -5 DEG C, and then the drill and the steel wire mesh type container are cooled along with the stove and taken out. The anti-rust oil of the one-quarter normal concentration also can be injected from the outside in a saturated vapor form. The surface of the construction drill has the standard metal amber color, and the construction drill is low in cost, capable of being stored for a long time, resistant to abrasion and attractive.

Description

technical field [0001] The invention relates to a surface treatment method of a construction drill bit. Background technique [0002] The surface treatment of construction drill bits is to establish a special substance that can firmly cover the surface of the drill bit, which has the functions of anti-rust, anti-corrosion and bright colors. In the traditional surface treatment process of construction drill bits, methods such as blackening, phosphating, galvanizing, and chrome plating are generally used to form a protective film to prevent the occurrence of oxidative corrosion or delayed corrosion on the surface of the drill bit, so the protective effect It is an important role of surface treatment. However, the surface treatment methods of these traditional construction drill bits form a single surface color, which is generally either black or white, and the protective effect is also very limited, which cannot meet the increasing requirements of consumers for bright colors ...

AI Technical Summary

Problems solved by technology

However, the surface treatment methods of these traditional construction drill bits form a single surface color, which is generally either black or white, and the protective effect is also very limited, which cannot meet consumers' increasing requirements for bright colors on the surface of construction drill bits.