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Quality
Control
"Prevent
defects rather than detect defects." Dr.
Edward Demmings, the "God Father" of Quality Control
China
Array:
Six
Principals of Quality Control
- Management
Commitment
- Control
all aspects of the process
- Identify
& rectify problems early
- Adapt
to China
- Coordinate
with customers
- Use
quality resins, molds & machinery
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Management
Commitment
China Array's upper management has a unique blend of quality control
experience specific to both China and plastics. Russell
Johnson, President, has contract manufactured industrial components
in China since 1980: arguably the most difficult QC assignment anywhere
over the last two decades, as Chinese factories have evolved from
gargantuan State Owned Enterprises (SOE) to hybrid Township Village
Enterprises (TOE) to entrepreneurial private ownership; against
a back drop of breakneck, double digit annual GDP growth. China
Array has consistently met international quality standards and those
of its customers.
For
the last 12 years, Li Qinren,
General Manager of Wuhan factory, has been the company's hands-on
man on the ground for quality control in China. Formerly, Chief
Engineer for the China State Shipbuilding Corporation's (CSSC) Marine
Instrumentation Plant, Li's mission was to develop and bring to
completion complex military technology in the area of nautical and
aeronautical navigation systems. (From 1987 to 89, he was on loan
to MIT helping to develop an aeronautical gyroscope.) Mr. Li has
been crucial to China Array's quality control success in China instituting
cooperative QC programs at suppliers verified by unannounced inspections
with unfettered access to production facilities. As General Manager
of China Array Wuhan he applies the same unyielding standards.
Carl
Olson, VP Sales and Marketing, has both resin development and
laboratory testing in his career background. As an Applications
Development Engineer at GE Plastics (now Sabic Innovative Plastics)
for 23 years, Olson helped to develop many of the HPTP's in the
forefront of the industry today. Subsequently, he was a manager
at Plastics Technologies Laboratory Inc. (PTLI), a lab dedicated
to testing plastics and elastomers, and an advocate of statistical
analysis: a key tenant of modern quality control. Olson, a world
class expert in stress analysis, applies the full panoply of resin
and testing knowledge to China Array's production. Mike
Caropreso, China Array's Lead Process Engineer, held that same
position at GE Plastics for nearly thirty years. As a trouble shooter
for GEP, Caropreso has seen problems through the large lens of the
telescope looking back at what went wrong: an uniquely valuable
QC perspective.
Control
of the Process
From RM to FG (raw material to finished good) is a motto at China
Array, where the entire production
process is controlled in the firm's 100% owned factory. The
company molds high performance (i.e. high
cost) resins, which are produced by a handful of world class manufacturers:
Solvay
Advanced Polymers, Sabic
Innovative Plastics and BASF,
to name three major ones. They provide materials certifications
with each shipment, which are filed along with resin and parts samples
for each mold test and production run. China Array's molds
are built by a single, captive tool maker, the design and construction
of which are fully vetted by China Array's engineers. Mold tests
are performed in-house. Samples are analyzed, with an emphasis on
stress analysis of the finished good, and stored electronically
and in hard copy. They are measured extensively and critical dimensions
are determined for future ongoing production testing. First and
last samples from production runs are tested and saved. Lot traceability
is well established. Customer feedback and field testing is documented.
From RM to FG, China Array controls and is accountable for, the
process.
Identify
and Rectify Problems Early
CAD/CAM
Software Systems can identify potential QC issues before a
single part is molded.
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Another
of Dr. Demming's adages is that "the sooner a problem is
discovered, the easier it is to fix." Anyone who has shipped
defective product can attest to this. One of the things China Array
discovered working with its sub suppliers over the years is that
the shop workers are the first line of defense in quality control.
China Array trains and rewards its workers for finding quality problems.
Because the resins it molds are so valuable, the company places
more emphasis on defect free production than on high volume through
put. A worker is not penalized for stopping production, if he thinks
there is a problem. Instilling QC values in its workers is the surest
way to follow Dr. Demming's advice about catching and fixing problems
early.
Adapt
to China
It
is China Array's long history of manufacturing
in China with hands-on, factory floor level quality control that
gives it a competitive edge over its competition and its customers
the assurance they need that parts will be of consistently
high quality parts. Consistency of quality has been an ongoing challenge
in China. Firms have the capability to produce quality parts, but
lack the vigilance to do so on every production run. Implementing
a QC program that Chinese workers will buy into and participate
in is the first step in establishing consistency. China Array has
had experience with. Bridging the gap between Western standards
and expectations and Chinese practices and reality is China Array's
specialty. Paying attention to detail, working within the parameters
of management and labor, finding the synergies from combining the
"Chinese" way and the "Western" way, keeping
communications open, being persistent and, again to quote Demmings,
"banishing fear from the factory" all contribute to an
effective, sustainable quality control system in China.
Coordinate
with Customers
Customers
are the ultimate arbiters of quality. The QC systems and statistical
and physical analysis are in place for one reason: to satisfy the
customer. The customer defines the critical quality aspects of a
product. China Array works to keep the customer involved in every
step of the process. The company is confident in its work and open
with its customers, who are vital in understanding a problem and
framing a solution. Testing and analysis data are useful to the
customer in determining how a product is working in the field, and
how it can be improved in the future.
Materials,
Molds & Machinery
Having
the right tools for production is the foundation of good quality.
China Array's materials come from world leaders in the industry;
same with its tool steel. It's tool maker has proven itself over
the years to be highly capable. (China Array adheres to The
Society of the Plastics Industry (SPI) Mold Standards & Classifications:an
excellent basis for quality control.) China Array's capital equipment
and facilities are dedicated to HPTP molding: desiccant drier, oil
temperature controllers, high temperature injection molding machines
with adequate clamp tonnage, pressures and speeds lay the foundation
for exceptional quality.
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