Precautions for the use and maintenance of the high temperature season of the extruder

First of all, the whole production cycle to ensure effective cooling, when necessary external circulating water tank equipped with refrigerator, otherwise it will affect the quality of the products, tooling and cooling effect, decelerating box lubricating oil cooling system, main bearing lubricating oil cooling system, hydraulic system and oil cooling system and a series of failure or damage production.

Secondly, to close monitoring of the electrical system and hydraulic system, to ensure the normal working temperature:

An electrical system maintenance (mainly concerns: Z4 DC motor, PARKER DC speed regulator and control system)

Confirm the cooling fan motor clockwise rotation, and strong winds from the motor side radiating plate outflow;

Every 30 minutes to check the DC motor working state of the 2. production process, such as DC motor housing overheating (greater than 75 degrees), check the current and power output is abnormal, if necessary, stop further processing.

3. of the DC motor fine filter (fiber sandwich - filter) clean water (about 40 C) cleaning, dust cleaner can also be hand flapping or sucked out with compressed air suck, if pollution is oily, you will need to use gasoline to wash, fine filter to avoid condensation and ground injection; the general requirements of all filter drying after cleaning, need to be replaced when necessary.

4. motor bearing with regular oil refining chemical plant in Yumen Oilfield Company produced 3 molybdenum disulfide lithium base lubricating oil (Kunlun).

In the summer of 5., distribution cabinet production after long time governor may generate a lot of heat, the user may consider the door open, industrial fan into the cabinet body hair, faster cooling speed;

6. governor after a long time, the residual amounts of dust in the heat radiating fins (if the ash too much affect the heat, the governor will appear HEATSINK TRIP trip fault), users regularly use compressed air free of water and oil by blowing dust to Admiral (power-off operation); the cabinet and other electric devices (such as PLC, circuit breaker and the contactor) can also prolong the service life of the dust removal operation; note: be sure to operate in the off state.

7. users should pay attention to influence the production environment of electrical equipment, such as the need to avoid metal dust (copper rod furnace and extrusion machine in the same workshop), salt fog, acid mist, vapor, or electrical life (mainly speed life) will be greatly reduced.

8. conditional users can consider with the air conditioning room in the distribution cabinet, and place the desiccant, can remove dust moisture and heat dissipation;

Before the 9. spindle operation, be sure to spindle lubrication pump, gearbox lubrication pump, cooling pump open tooling;

Two, the hydraulic system maintenance (very important, including mechanical lubrication)

Summer temperatures will lead to hydraulic oil thinning, pressure will decrease, the original voltage 25~25.5Mpa automatic pressure maintaining function will fail, resulting in pump work for a long time, the temperature rises rapidly, the pressure is more and more low, finally also cannot production; high temperature can cause all kinds of seals have caused the leakage of various progeria. The outer circulation cooling is very important, if the outer loop has effective cooling, the hydraulic system is not working, you can take the following methods to solve:

Method: 68# hydraulic oil pressure pump replacement of hydraulic oil of high viscosity.

Method two: adjust the flow of oil pump and valve block side overflow valve (pressure regulating valve, black), the system pressure reaches 25Mpa, the high-pressure pump stops working automatically into automatic pressure state.

Method three: when the oil temperature is high, can not produce, can shut down after the overflow valve completely unscrew the pump for half an hour, running temperature to room temperature will, then tighten the overflow valve pressure reaches 25~25.5Mpa to continue production.

The new machine debugging completed trial production after a month, must be used with 40 liters of oil hydraulic oil filter car (10~20 m grade) filter, check the surface oil tubing joints, each joint inside and outside the machine body, such as replacing the corresponding seal leakage (including hydraulic nut and booster lance sealing parts), at the same time replace the filter or spindle bearings and gear box lubricating oil.

The tank front lid is opened, cleaning the tank, finally the dough sticky net all small impurities.

Replace the hydraulic station above the red filter high pressure oil filter (HX-25X10).

In the corresponding cup of the pressure cylinder, the pivot lubricating grease injection shoe pivot grease to prevent rotation when killed.

Check the compaction wheel bearings, diesel or gasoline cleaning, such as damage to the replacement, adding MoS2 grease.

Import shaft oil seal, extrusion spindle 4 bearing cover seal check reducer, such as oil spills to be replaced.

After every 3 months for compulsory maintenance (repeat 6 items).

Every year, the mandatory retirement in super high pressure hydraulic nut sealing ring, once the failure set of hydraulic nut parts will be damaged after cutting to replace the extrusion wheel.