Gating system, ie from the injection molding machine nozzle to the cavity between the feed channels, including sprue, runner, gate and cold slug. Especially selected gate location should be conducive to the cavity filled with molten plastic flows in good condition, the solid runner and gate attached to articles on cold material at the top of the mold is easy to be removed from the mold and (heat except channel mode). Generally speaking, the financial crisis on the sheet metal industry does have some impact. But the sheet metal industry under the wave of the financial crisis shows a good development trend. Production and sales in domestic and international markets throughout the sheet metal industry in the financial crisis basically complementary balance can be achieved, so the financial crisis on the sheet metal industry has little overall impact on the amount of orders. Boronizing process commonly used in a variety of cold mold, due to the improvement of wear resistance, mold life can be increased several times or ten times. Sometimes the use of medium carbon steel Boronizing can replace high-alloy steel mold. Boronizing hot die can also be used, such as hot extrusion molds. Boride layer brittle S-STAR suppliers, the diffusion layer is thin, weak support for the nitrided layer, therefore, can be used boron nitriding or carbonitriding boron to strengthen the transition zone, the hardness changes gently. To improve the brittleness of boride layer, can be boron vanadium, boron and aluminum alloying. Alloying including Chromizing, vanadizing, seepage titanium and other technology, can be used to deal with cold and hot die Japan imported S-STAR, which TD method (molten metal infiltration) has been some applications, can raise a few die life times or even ten times. Also can effectively improve the low magnification and density of steel by ESR and improve mold steel isotropic. Some domestic production plant test description EAF steel production 4Cr5MoSiV1 transverse impact toughness value is only about 31% of the longitudinal, after 4Cr5MoSiV1 by remelting of steel, transverse impact toughness values ??can be equivalent to 70% of the longitudinal, increased by more than 1 times. For the special requirements of the steel mold, then using a powder metallurgy process to produce high-speed steel and high-alloy tool steel powder S-STAR steel, can better improve the microstructure and properties of the steel. The advantage of this method is that no special equipment, low cost, easy. But it also has the most serious drawback, namely the risk of cracking and peeling plaster there in the heating process, therefore, there may be a partial oxidation and decarbonization; the second is an ointment exist on the surface, the impact quenching quality (reducing coolant cooling capacity and paste objects falling within the hardening agent will change the coolant cooling rate); the third is difficult to clean hardened workpiece; four is coated with a large amount of smoke when heated workpiece paste material for the furnace and the environment adversely. In the continuing weakness of the state of the market, China's steel output or "pressure not down." September nationwide average daily crude steel output remained slight increase QoQ; average daily production of steel is the second highest on record. Thus, the contradiction between the long-term accumulation of iron and steel industry has a very complex factors, not "profit loss on the pressure of production, elimination" so simple. Yong Wei mold steel sheet _ _S-STAR Dongguan S-STAR provided by Yong Wei steel mold. Looking for "Die steel, DC53, SKD11.SUS440C, SUS420" reliable supplier, choose to have the entire network ShangMeng Certified: Dongguan City An Yongwei mold steel shop (www.dgyongwei.com), trustworthiness and reliability, now click on "Commercial Union Support" on page live chat with us now!