1. Install the nozzle nut first;

2. Check whether the taper of the nozzle body matches well with the gooseneck (Apply red lead powder evenly to the taper of the nozzle body, and then put the nozzle body into the gooseneck by hand, turn it around and watch Whether the coloring of the taper of the nozzle body is wiped off evenly);

3. Add the gooseneck to preheat first. If you use a heating rod to heat it, you can first heat it to about 450℃, and then use a gas spray gun to burn the gooseneck cone for a few minutes, and the temperature will reach 450 to 500 ℃; If heating with a heating cake, preheat the gooseneck, and then use a gas spray gun to burn the cone of the gooseneck for a few minutes until the temperature reaches 450-500℃. Coat the taper of the nozzle body with high-temperature snow oil

4. Use a flat zinc alloy block or hard wood block to place between the nozzle body and the head plate. First take a jog, press the button before and after the button, so that the template system moves forward, and the nozzle Press the body into the gooseneck taper hole, and then press the button before pressing the button. Hold for a period of time (at least 3min), and the nozzle body will not rebound at the cone of the pot; (Note: It is recommended that the feeding pressure be adjusted to 90bar below DC88 Around, DC100 above can be adjusted to between 120-140bar.);

5. Check whether the nozzle body is consistent with the center of the template (the distance between each phase cannot be greater than 0.2mm);

Requirements for use

1. Install the nozzle body tightly according to the nozzle body installation method;

2, try to control the lowest temperature that can be die-casting normally;

3. Select a suitable heating ring to heat to maintain a constant temperature, and require the nozzle probe to be inserted directly into the probe hole of the heating ring. During normal operation, the indicated value of the heating temperature represents the trueness of the nozzle body temperature. If the temperature is too high, the corrosion rate of the nozzle body will increase and the service life will be shortened. If the temperature is too low, it will cause the alloy material to be blocked in the nozzle head, which can not be produced normally, and it will also reduce the life. At the same time, the nozzle head will be blocked, and it will also cause material leakage at the gooseneck taper hole;

4. The composition of die-cast zinc alloy must meet the requirements of GB/T13818-92.

Maintenance Rules

1. Control the heating temperature of the heating coil within the required range (410-430℃);

2. During normal work, the feeding pressure should not exceed 95% of the rated pressure. Otherwise, the service life of the nozzle body will drop sharply;

3. The discharge aperture of the nozzle head needs to be prepared as required to prevent excessive pressure in the injection nozzle caused by too small aperture. Reduce life span;

4. The probe on the heating ring needs to be inspected regularly, and the temperature measurement must be accurate;

5. The taper of the nozzle head and the nozzle body must match and fit in place.

Dongguan Chengda Machinery Parts Co., Ltd. (Wangda Die-casting Machine Parts Factory) is located in Dongguan City, an industrially developed Pearl River Delta region. For many years, our company has integrated R&D, production, sales, internal and external circular grinding, vacuum heat treatment, Vacuum nitriding and maintenance are integrated modern technology enterprises. Our company has a group of technical teams and sales teams with more than 10 years of experience in die casting machine parts processing, as well as high-precision production equipment, including CNC lathes, automatic lathes, milling machines, grinding machines (internal and external cylindrical grinding), and vertical grinding , Wire cutting, boring machine, gantry milling machine, vacuum heat treatment furnace, vacuum nitriding furnace, quenching furnace, etc. The production capacity is greatly improved, and the various production tasks proposed by customers can be completed efficiently and quickly. The product quality is more guaranteed and the delivery time is more punctual.

Processing, production and sales: Die-casting machine parts, Lijin, Yizumi, Fulai, Buhler, Hishinuma, Kazuka, Xingxing, Chenfeng, Weitai, Yousheng, Xinhong, Mingcheng, Zhengao, Noda, Ube , Toshiba, Toyo, Baoyang, etc. 15T-650T hot chamber zinc and magnesium alloy die-casting machine: material pot, nozzle body, nozzle head, piston ring, hammer head, heating sleeve, heating cake, temperature control rod and other accessories; 125T-4500T cold chamber aluminum, magnesium alloy : Barrel, plunger head, injection rod, connector, plunger oil, crucible, release agent, spray gun, pellet oil, melting furnace, pellet machine, manipulator, mold accessories: firing pin, firing pin sleeve, etc.; die-casting Machine maintenance, material pot replacement, etc.; the company has a complete and scientific quality management system. Integrity, strength and product quality have been recognized by the industry. Friends from all walks of life are welcome to visit, guide and negotiate business.

By virtue of its professional level and mature technology in the field of die-casting machine accessories, as well as its diversified information advantages in the Pearl River Delta, Chengda has absorbed advanced foreign processing, heat treatment, and nitriding technologies, and has undergone many years of technical practice, research and development and innovation. , The service life of parts is equal to the service life of imported parts. The die-casting machine parts produced by our company are sold all over the country and abroad.