cold-drawn high-pressure-boiler steel pipe-manufacture,factory,supplier from China

Advantages of electric slag steel: 1. By controlling the oxygen blowing strength and time of vacuum refining, control the C content and C content of molten steel are stable 2. Effectively reduce the harmful H, N, O, S and other elements in steel water, and the product has high mechanical properties 3. High purity of molten steel makes the gas and inclusion content low.

Production process: EBT + LF + VD + (ESR)→ high temperature homogenization, forging molding →after forging overrefinement processingtest itemreach the target degree of purity Class A and C of refined steel shall not be greater than grade 1.0, class B and D shall not be greater than grade 1.5; Electroslag steel class A and C shall be no more than grade 0.5, class B and D shall be no more than grade 1.0 annealed structureRefined steel meets NADVA#207 standard AS7 Electroslag steel meets NADCA#207 standard AS4  banded segregationThe refined steel meets SEP1614 standard re

In 2017, the company pursues excellence, pioneering and enterprising, with a new 10T gas protection furnace, 5T electric slag furnace and 15-ton electric slag furnace. Electric slag can be refused for hot mold steel (H13), roll steel (9Cr3Mo, 9Cr5Mo, etc.).                       

Shandong Laiduan Machinery Co.,Ltd.Product name：φ1063 roll core shaftProduct status: waiting for ultrasonic flaw detection.

Swedish customers visit our companyOn May 30, 2024, customers from Sweden visited our company and we were very honored. as a supplier of their paper shaft heads, we have always put product quality first, and their boss also highly recognize our products and want to cooperate with us in a deeper and more diversified way. The general manager exchanged gifts with the customers and hoped that the cooperation between the two sides could be closer. At the same time, we have discussed the carbon border adjustment mechanism, and we have made it clear that o

Shandong Laiduan Machinery Co.,Ltd.and Shandong Innovation Group signed the roll sleeve for aluminum foil mill project , opening a new chapter of aluminum foil rolling machinery.Material: 32Cr3Mo1VSize:32Cr3Mo1VOD(mm)ID(mm))L(mm)Roll Sleeve∮1295∮11652350Roll Sleeve∮1195∮10651450Roll Sleeve∮1095∮9452350Production equipment:  4500t hydraulic press,deep hole boring equipment.Application:After assembly with the roll core, it is assembled to the aluminum foil mill for use.Annual capacity:7000 tons/years

Shandong Laiduan Machinery Co.,Ltd.Today’s product: forged battery roll with the size ∮900×1500×3650.Material: 9Cr3MoWorking roll barrel length: 1500mmNet weight of forged blank roll: 10600kg/pieceProduction equipment: 15t gas-protected electroslag remelting furnace, 4500t hydraulic press.Annual capacity: 5000 tons/year.

The celebration meeting of the 20th anniversary of the relocationofShandong Laiduan Machinery Co.,Ltd.       The year 2022 is the 20th anniversary of the relocation of the new factory site of Shandong Laiduan. Toughing the wind and rain, spring and autumn, in 2022, we broke the historical record.

Customers from Slovenia visited our companyOn May 17, 2024, customers from Slovenia visited our company. We warmly welcomed our distant friends and held relevant meetings on future cooperation between us. At the meeting, we mainly discussed the material, process and mechanical properties of rolls (including work rolls, backup rolls, etc.). After the meeting, we led the customers to visit the company's production workshop, in the process of visiting the workshop, the customers had a strong interest in our feature - electroslag, but also clearly expressed t