The invention relates to a production method of a hydraulic hose wound by four
layers of steel wires. The production method includes the following steps of (1) batching, (2) internal mixing, (3) openmixing, (4) medium film
calendering, (5) inner tube extruding, (6) winding, (7) external glue
coating, (8) water cloth winding, (9) vulcanizing, (10) water cloth opening, (11) decoring and pressure testing, and (12) inspecting, packaging and warehousing. According to the production method of the hydraulic hose wound by the four
layers of steel wires, in the production process, a
raw material adopts a special material formula, the
raw material cost is low, produced product performance is excellent, the good acid and alkali resistant and anti-
corrosion effects are achieved, oil-resistant, heat-resistant and
ageing-resistant properties are good, the four
layers of steel wires are used for winding, a binder is used for bonding, the structure is compact, the bonding effect is good, service performance of the hydraulic hose is enhanced, and the service life of the hydraulic hose is prolonged; and in the technological process, heating treatment is conducted in a special mode, and circulationsupply of cooling water is realized, so that the production cost is lowered.